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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 26. Отображено 26.
23-04-2014 дата публикации

Single-satellite interference source positioning method based on satellite-borne multi-wave-beam antenna

Номер: CN103746757A
Автор: ZHANG GENGXIN, ZHANG WEI, YU QIANG, XIE ZHIDONG, BIAN DONGMING, HAN FUCHUN, KONG BO
Принадлежит:

The invention discloses a single-satellite interference source positioning method based on a satellite-borne multi-wave-beam antenna. The method comprises the following steps that an antenna directional pattern model of each wave beam of the satellite-borne multi-wave-beam antenna is built, the antenna gain is correlated with the geographical position, and an antenna directional pattern geographical model is constructed; a ground station receives satellite transfer signals and carries out real-time monitoring, when the interference is monitored, the main interfered wave beams and adjacent common-frequency wave beams are determined, in addition, the interference signal parameters are cognized, the signal intensity of the interference signals in other adjacent common-frequency wave beams is measured according to the cognizing results, and the space distribution of the interference signal intensity in multi-wave-beam environment is obtained; a positioning equation set formed by the interference ...

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Номер записи: 1
11-06-2014 дата публикации

Real-time autocorrection method for frequency spectrum non-flat noise floor

Номер: CN103856276A
Автор: HU JING, ZHANG GENGXIN, XIE ZHIDONG, BIAN DONGMING, SUN QIAN, CHEN HUAN, MA ZHAOYU, LI YONGQIANG
Принадлежит:

The invention discloses a real-time autocorrection method for frequency spectrum non-flat noise floor. The method comprises steps of obtaining frequency spectrum data, fetching data to be analyzed, estimating the noise floor, interpolating the estimated value, and correcting the noise floor. The method can automatically and efficiently correct the frequency spectrum non-flat noise floor in real time when frequency spectrum monitoring equipment runs, and is applicable to various communication systems.

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Номер записи: 2
13-08-2021 дата публикации

Ground noise fitting and eliminating method for satellite spectrum situation generation

Номер: CN113259031A
Автор: DING XIAOJIN, LYU QIULIN, ZHANG GENGXIN, 丁晓进, 吕秋霖, 张更新
Принадлежит:

The invention discloses a ground noise fitting and eliminating method for satellite spectrum situation generation. The method comprises three parts of ground noise data fitting, ground noise elimination and situation prediction, the ground noise data fitting is to sort spectrum data to set a signal threshold, the spectrum data higher than the threshold are considered as signals, the spectrum data lower than the threshold are considered as ground noise, and the spectrum data lower than the threshold are considered as ground noise, therefore, ground noise data are separated, and polynomial fitting is performed on the separated ground noise; the ground noise elimination is realized by subtracting the ground noise data obtained according to a fitting function from original signal data; the situation prediction is to predict the spectrum occupancy state of the online spectrum data according to a model trained by the offline spectrum data. According to the method, the adaptive capacity of the ...

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Номер записи: 3
02-05-2023 дата публикации

Cooperative spectrum sensing method based on federated learning

Номер: CN116056092A
Автор: DING XIAOJIN, XU YEHUI, ZHANG GENGXIN
Принадлежит:

The invention belongs to the technical field of wireless communication, and discloses a cooperative spectrum sensing method based on federated learning, which comprises three parts of data preprocessing, model training and updating and online detection. According to the method, historical received data is processed, a corresponding training set is constructed to train a neural network, and model parameters are continuously updated by using a federated learning algorithm, so that consumption of communication resources is reduced, a model can quickly extract a hidden rule of data, and a reasonable joint detection value calculation method is designed; according to the method, the false alarm probability is taken into consideration to solve a proper detection threshold, sensing results of signals received by different nodes in real time are fused by using a neural network, the error rate of the sensing results of a single channel is reduced, and real-time judgment of a spectrum occupancy state ...

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Номер записи: 4
26-05-2023 дата публикации

Load prediction method for low earth orbit satellite internet of things

Номер: CN116170066A
Автор: HONG TAO, PENG WENTAO, JIAO CHUANWEI, ZHANG GENGXIN
Принадлежит:

The invention discloses a load prediction method for a low earth orbit satellite internet of things, and belongs to the technical field of satellite communication, and the method comprises the steps: an internet of things terminal generates a corresponding RM sequence as a pilot frequency according to the identity ID of the internet of things terminal, and transmits a data packet containing the pilot frequency and data on a satellite channel in an authorization-free manner; performing identity detection on the received data packet by the satellite end according to the pilot frequency; calculating an access load of the satellite end based on an identity detection result, and taking the access load as a historical access load amount of machine learning; and obtaining a multi-input LSTM neural network prediction model driven by the historical access load capacity, the low earth orbit satellite orbit information and the earth rotation information, and obtaining a load prediction result by using ...

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Номер записи: 5
07-05-2014 дата публикации

Spatial information network isomerism dynamic networking method based on layered autonomous area

Номер: CN103780475A
Автор: ZHANG GENGXIN, GOU LIANG, BIAN DONGMING, XIE ZHIDONG, ZHANG WEI, KONG BO, LI YONGQIANG
Принадлежит:

The invention discloses a spatial information network isomerism dynamic networking method based on a layered autonomous area. The method includes the following steps that according to components and functions of all parts in the whole spatial information network, a spatial information network system structure is set up; according to the properties, the functions, the zone positions and the requirements, all nodes in the network are divided into different layered autonomous areas with independent networking routing strategies; boundary nodes are selected to separate a control link from a service link and the inter-domain control information transmission and the intra-domain control information transmission are separated; an intra-domain sub-layer which is in line with international standards and an inter-domain sub-layer which has the same protocol and functions on all the nodes are set up to form a layered autonomous area model network protocol stack frame. According to the spatial information ...

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Номер записи: 6
03-02-2010 дата публикации

Self-prepared organic fertilizer technique

Номер: CN0101638331A
Автор: YANGWEI MA, GENGXIN ZHANG, SHAOZU LU, MA YANGWEI, ZHANG GENGXIN, LU SHAOZU
Принадлежит:

The invention discloses an organic fertilizer preparation technique for improving lands. In the technique for improving the lands, a self-prepared organic fertilizer technique has direct impact on ecological environment improvement. The aim of the invention is to overcome the defects in the prior art, and to provide the fast and low-cost self-prepared organic fertilizer technique. The self-prepared organic fertilizer technique adopts the technical scheme that: the self-prepared organic fertilizer technique mainly comprises the steps of skillfully using earthworms to improve soil, and adding phosphate rock powder and plant ash in a certain proportion into feces of poultry or livestock and useless crops to prepare a green nuisanceless organic fertilizer. A fertilizer pit is designed to fullyutilize organized enzymes of the earthworms to keep and improve the humidity and the temperature of the soil. The fertilizer pit can be used repeatedly; the amount of the self-prepared organic fertilizer ...

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Номер записи: 7
01-08-2023 дата публикации

Double-satellite time-frequency difference positioning method

Номер: CN116520372A
Автор: QU DEXIN, YANG GUANG, ZHANG GENGXIN
Принадлежит:

The invention discloses a double-satellite time-frequency difference positioning method, and belongs to the technical field of satellite positioning, and the method comprises the steps: obtaining the time difference of arrival TDoA and the frequency difference of arrival FDoA when a ground radiation source transmits a signal to two satellites; establishing a double-satellite time-frequency difference positioning equation set based on the time difference of arrival TDoA and the frequency difference of arrival FDoA; based on the double-satellite time-frequency difference positioning equation set, an improved particle swarm algorithm is adopted for solving to obtain a positioning result of the improved particle swarm algorithm; and based on the double-satellite time-frequency difference positioning equation set and the positioning result of the improved particle swarm algorithm, a Newton iteration method is adopted to carry out iterative solution to obtain the positioning result of the target ...

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Номер записи: 8
17-12-2014 дата публикации

Method for determining nonuniform link gain of flexible forwarding satellite system

Номер: CN104219766A
Автор: BIAN DONGMING, ZHANG FEI, JIANG LIFENG, ZHANG GENGXIN, XIE ZHIDONG, HU JING, GOU LIANG, ZHANG WEI
Принадлежит:

The invention discloses a method for determining nonuniform link gain of a flexible forwarding satellite system. The method includes performing resource distribution and link parameter setting; calculating link gain under different working point conditions; judging whether a link can be on or not; selecting an optimal working point for a forwarder; calculating an EIRP (effective isotropic radiated power) value of a ground uplink terminal and link gain. By the method, link gain of a nonuniform channel of the flexible forwarding satellite communication system can be determined simply and quickly, and system capacity and power resource utilization rate can be improved effectively.

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Номер записи: 9
23-06-2023 дата публикации

Folding capture method of direct sequence spread spectrum long code

Номер: CN116318245A
Автор: NIE LIANGFENG, ZHAO LAIDING, ZHANG GENGXIN
Принадлежит:

The invention discloses a direct sequence spread spectrum long code folding and capturing method, which comprises the following steps of: performing partial matching correlation on a high-frequency spread spectrum signal subjected to pre-processing and frequency mixing processing and a local folding code, storing a correlation result in a two-dimensional register, performing grouping FFT (Fast Fourier Transform) operation and accumulation on the correlation result, and obtaining a high-frequency spread spectrum signal; power spectrums with the same code phase as the related result are obtained, the maximum peak value far larger than the amplitude of other power spectrums is obtained after the modulus square sum of the I/Q path power spectrums, the maximum peak value is compared with a threshold value, if the maximum peak value is larger than the threshold value, the local spreading code phase offset corresponding to the peak value is consistent with the code offset of the input signal, ...

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Номер записи: 10
06-06-2023 дата публикации

Terminal identity identification method based on hadamard code and beam forming

Номер: CN116232404A
Автор: TANG SHENGHUA, DING XIAOJIN, ZHANG GENGXIN
Принадлежит:

The invention belongs to a satellite communication technology, and particularly relates to a terminal identity identification method based on a hadamard code and beamforming, which comprises two parts of beamforming design and terminal identity detection: the beamforming design is characterized in that in an asynchronous condition, hadamard is adopted as a terminal identity sequence, a terminal sends a signal to a cluster head, and the cluster head is connected with the hadamard code; the cluster head sends a signal to a satellite through beam forming; in the terminal identity detection, an active terminal identity sequence is detected from a received sequence, a channel coefficient is estimated, then the detected active terminal is subtracted from the received sequence, iteration detection is carried out all the time, and finally a judgment threshold is set through energy detection and used for ending iteration. According to the method, the problem that the terminal identity sequence is ...

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Номер записи: 11
16-04-2014 дата публикации

Narrow band interference detection method based on principal value interval analysis

Номер: CN103731180A
Автор: ZHANG GENGXIN, ZHENG HUI, HAN FUCHUN, HU JING, SUN QIAN, LI YONGQIANG, XIE ZHIDONG, BIAN DONGMING
Принадлежит:

The invention discloses a narrow band interference detection method based on principal value interval analysis. The narrow band interference detection method based on the principal value interval analysis comprises the following steps of obtaining preprocessed signal frequency spectrums from a front end frequency spectrum generation device, a signal detection device and a signal preprocessing device; computing to obtain a frequency spectrum distributed column diagram according to signal frequency spectrums; computing to obtain a signal main value interval according to the column diagram distribution; iterating the frequency spectrums and finding the narrow band interference according to the principal value interval. The narrow band detection method based on the principal value interval analysis has the advantages of being strong in adaptability, high in accuracy and good in stability.

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Номер записи: 12
09-06-2023 дата публикации

Satellite Internet of Things capacity improvement method based on spatial domain and power domain resource joint scheduling

Номер: CN116249180A
Автор: DING XIAOJIN, ZHANG GENGXIN
Принадлежит:

The invention belongs to the technical field of satellite communication, and discloses a satellite internet of things capacity improving method based on spatial domain and power domain resource joint scheduling, which comprises two parts of downlink beam forming based on a statistical channel and uplink beam forming based on the statistical channel. On the basis of downlink beam forming of a statistical channel, in consideration of limited available power on a low-orbit satellite, the emission power consumption of the satellite is minimized by optimizing a beam forming vector, the total rate is maximized by performing power optimization on data transmission from a cluster head to the Internet of Things, and meanwhile, the transmission requirement in a downlink scene is met; based on uplink beam forming of a statistical channel, two uplink total rate maximization models are established, and the optimal sending power and satellite beam forming vector of the Internet of Things terminal are ...

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Номер записи: 13
30-07-2014 дата публикации

GEO-LEO satellite network for global information distribution

Номер: CN103957045A
Автор: ZHANG GENGXIN, WANG CHUANG, ZHANG WEI, XIE ZHIDONG, BIAN DONGMING, KONG BO, HU JING
Принадлежит:

The invention discloses a GEO-LEO satellite network for global information distribution. The GEO-LEO satellite network comprises an outer-layer backbone network composed of three GEO satellites and an inner-layer enhanced network composed of at least one LEO satellite, the three GEO satellites are located over the terrestrial equator, the fixed point longitude difference is 120 degrees, the GEO satellites are connected through fixed inter-satellite links, the height of an LEO satellite orbit is 1,450 km, the orbit inclination is 84.5 degrees, the outer-layer backbone network and the inner-layer enhanced network carry out information distribution in a broadcast mode, the outer-layer backbone network and the inner-layer enhanced network carry out broadcast in a rate-free coding mode, and the GEO-LEO satellite network and the ground carry out broadcast in a rate-free coding mode. According to the GEO-LEO satellite network, seamless and enhanced coverage on the middle and low latitudes can ...

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Номер записи: 14
12-02-2014 дата публикации

Weighted broadcast retransmission method based on network coding

Номер: CN103580803A
Автор: ZHANG GENGXIN, GOU LIANG, BIAN DONGMING, XIE ZHIDONG, HU JING, ZHANG WEI, ZHANG FEI, LI YONGQIANG, SUN QIAN, KONG BO
Принадлежит:

The invention discloses a weighted broadcast retransmission method based on network coding. The weighted broadcast retransmission method based on network coding comprises the following steps of (1) building a weighted packet distribution matrix according to packet state information and link state information fed back by packets of receiving nodes, (2) selecting coded packets on a source node on the basis of the weighted packet distribution matrix, (3) sending the selected coded packets to the receiving nodes in a broadcast retransmission mode after the source node carries out XOR coding on the selected coded packets, (4) carrying out decoding on the coded packets through the receiving nodes after the receiving nodes receive the coded packets, feeding the state information of the decoded packets and the link state information of the decoded packets back to the source node, and (5) using the source node to judge whether transmission is accomplished or not according to the feedback information ...

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Номер записи: 15
07-05-2014 дата публикации

Self-adaptation audio disturbance detection method based on spectral pattern analysis

Номер: CN103780319A
Автор: XIE ZHIDONG, HU JING, HAN FULI, ZHENG HUI, SUN QIAN, LI YONGQIANG, BIAN DONGMING, ZHANG GENGXIN
Принадлежит:

The invention discloses a self-adaptation audio disturbance detection method based on spectral pattern analysis. The method includes the following steps of obtaining frequency spectrum data, setting a target point, obtaining judgment window data, judging audio disturbance and judging whether detection is finished. The audio disturbance detection method is good in environment adaptability, high in anti-noise performance, low in calculation complexity and high in detection accuracy.

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Номер записи: 16
03-02-2010 дата публикации

Mixed fertilizer formula for planting eggplant trees

Номер: CN0101638337A
Автор: ZHANG GENGXIN, MA YANGWEI, YANG DAKAI, LU SHAOZU, GENGXIN ZHANG, YANGWEI MA, DAKAI YANG, SHAOZU LU
Принадлежит:

The invention discloses a mixed fertilizer formula for planting eggplant trees. The conventional fertilization method can only maintain to provide the eggplant trees with sufficient fertilizer withoutconsidering how to prevent eggplant tree diseases; and if the eggplant trees are easy to be invaded by bacteria, people cannot simply discover that the roots rot at an early stage, and the time whenpeople see yellow leaves of the eggplant trees is too late. In the novel formula, 70 percent of thiophanate methyl wettable powder of 800 to 1,200 times and 65 percent of wettable Dexon powder (0.5 to1 kilogram) of 500 to 1,000 times are added into the fertilizer to generate the mixture of the fertilizer, thiophanate methyl and Dexon. The possibility of root rot of the eggplant trees sprinkled bythe formula is reduced by 70 percent; the quality of cultured eggplants is better than the previous cultured eggplants; the eggplants are plumper and glossier than the previous eggplants; and the survival ...

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Номер записи: 17
06-06-2023 дата публикации

Narrowband Internet of Things system terminal working state timer dynamic configuration method

Номер: CN116233983A
Автор: HONG TAO, WANG FAN, YU XIAODI, DING XIAOJIN, ZHANG GENGXIN
Принадлежит:

The invention discloses a dynamic configuration method for a working state timer of a narrowband Internet of Things system terminal, which belongs to the technical field of satellite communication, and comprises the following steps: constructing a time delay power consumption multi-objective optimization problem of the narrowband Internet of Things system terminal in a low-orbit satellite Internet of Things scene; based on the time delay and power consumption multi-objective optimization problem, obtaining a support vector machine nonparametric regression model of a narrowband Internet of Things system terminal working state timer parameter to time delay and power consumption; substituting a support vector machine nonparametric regression model of time delay and power consumption into the time delay and power consumption multi-objective optimization problem, and solving by adopting a second-generation non-dominated sorting genetic algorithm to obtain a Pareto front optimal solution set ...

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Номер записи: 18
24-11-2010 дата публикации

Cabbage haploid breeding method

Номер: CN0101889548A
Автор: DAIAN XU, XUAN HU, QIONG YI, GENGXIN ZHANG, SHAOZHUANG LU, QIAN JIANG, XU DAIAN, HU XUAN, YI QIONG, ZHANG GENGXIN, LU SHAOZHUANG, JIANG QIAN
Принадлежит:

The invention discloses a cabbage haploid breeding method, particularly a method for quickly breeding new cabbage variety, aiming at overcoming the defects that the traditional cabbage breeding method results in long process and low efficiency. The method utilizes the cabbage haploid culturing technology and the traditional male sterile line breeding technology to complete the quick breeding of the good and pure cabbage line. The method comprises the following steps of: preparing an explant, inducing the haploid, regenerating and culturing, transplanting to the field, doubling the chromosome, isolating and pollinating, sieving economic character, and subsequent breeding. The invention adopts the cabbage anther haploid breeding technology to breed and omits the insemination process, thereby avoiding generating heterozygous, simplifying the homozygous procedure of the heterozygous, greatly shortening the breeding period, and enhancing the breeding efficiency.

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Номер записи: 19
07-05-2014 дата публикации

Satellite communication signal modulation identification method based on high-order cumulants and spectrum characteristics

Номер: CN103780462A
Автор: ZHANG GENGXIN, MA ZHAOYU, LI YUE, BIAN DONGMING, XIE ZHIDONG, HU JING, SUN QIAN, LI YONGQIANG
Принадлежит:

The invention discloses a satellite communication signal modulation identification method based on high-order cumulants and spectrum characteristics. The method includes the following steps of carrying out signal band-pass filtering, estimating carrier frequency, estimating the symbol rate, obtaining high-order cumulant parameters, identifying APSK or 16QAM signals, obtaining the number of spectral peaks of a quadratic spectrum, identifying BPSK or MSK signals, obtaining a quadruplicate spectrum, obtaining the number of spectral peaks of the quadruplicate spectrum, identifying pi/4DQPSK signals, obtaining the number of spectral peaks of the quadratic spectrum of a base band, and identifying 6PSK, 8PSK, OQPSK, QPSK signals. According to the satellite communication signal modulation identification method, total blindness identification of a satellite communication signal modulation mode can be achieved, and the method is simple, easy to carry out and high in accuracy.

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Номер записи: 20
26-03-2014 дата публикации

Multichannel data acquisition method based on static periodic sequence modulation

Номер: CN103684469A
Автор: BIAN DONGMING, ZHENG HUI, XIE ZHIDONG, HU JING, ZHANG GENGXIN, SUN QIAN
Принадлежит:

The invention discloses a multichannel data acquisition method based on static periodic sequence modulation. The multichannel data acquisition method is used for parallel low-speed acquisition of high-speed signals. The multichannel data acquisition method comprises the following specific steps that input signals are obtained from a signal receiving and channel preprocessing device; the input signals are pre-modulated through a modulation sequence, so that the pre-modulated signals in different channels are generated; lowpass filtering is conducted on the pre-modulated signal of each channel, so that lowpass signals are obtained; an analog-digital converter is applied to the lowpass signal of each channel, the lowpass signals of the channels are sampled in parallel, and therefore a base band sampled signal of each channel is obtained; a reestablishment matrix is worked out, the base band sampled signals of all the channels form a base band sampled signal matrix, reestablishment is conducted ...

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Номер записи: 21
14-07-2023 дата публикации

Satellite Internet of Things low-complexity multi-user detection method based on quasi-synchronous SCMA

Номер: CN116436506A
Автор: DING XIAOJIN, WANG YIQUN, ZHANG GENGXIN
Принадлежит:

The invention provides a satellite Internet of Things low-complexity multi-user detection method based on quasi-synchronous SCMA, and the method comprises the steps: dividing multi-user quasi-synchronous superposed signals received on the same subcarrier in an SCMA system in a satellite Internet of Things scene through time delay estimation, and obtaining divided signals; calculating the joint probability of each part of the divided signal, and deleting the joint probability according to the signal-to-noise ratio; calculating the marginal probability of each part of the divided signal according to the deleted joint probability, transmitting the calculated marginal probability to each subcarrier, carrying out serial iteration on the marginal probability according to the factor graph, transmitting the serial iteration to reach a set iteration stop threshold, finding out a superposition codeword combination corresponding to the maximum marginal probability, and carrying out iterative iteration ...

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Номер записи: 22
18-04-2023 дата публикации

Collision separation-oriented satellite Internet of Things auxiliary receiving beam pointing optimization method

Номер: CN115987359A
Автор: LIU ZIWEI, XU YUANYUAN, ZHANG GENGXIN, HONG TAO
Принадлежит:

The invention provides a collision separation-oriented satellite Internet of Things auxiliary receiving beam pointing optimization method. The method comprises the following steps that: a receiving end satellite generates an uplink receiving beam directional diagram according to system design; the signal received by the receiving end satellite in the first time slot is shown in the specification; estimating directions of arrival of all signals in the collision signals received by the satellite; calculating the optimal direction of the auxiliary beam generated in the first time slot according to the collision signal arrival direction; the satellite generates an auxiliary beam directional diagram according to the conventional beam forming parameters and the optimal direction of the auxiliary beam; and the conventional wave beam and the auxiliary wave beam are matched to complete separation and receiving of collision signals. The beam forming technology is introduced, the collision separation-oriented ...

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Номер записи: 23
22-12-2010 дата публикации

Medicine for strengthening resistance and solidifying health in the radiation treatment and chemo-treatment process of cancer patient

Номер: CN0101032597B
Автор: ZHANG GENGXIN, ZHANG ZHICUN, ZHANG YINGXIN, GENGXIN ZHANG, ZHICUN ZHANG, YINGXIN ZHANG
Принадлежит:

The present invention is one kind of medicine for cancer patient in radiotherapy and chemotherapy to strengthen body's resistance. The medicine is prepared with astragalus root, ophiopogon root, American ginseng, dogwood fruit, wolfberry fruit and nutagrass flatsedge rhizome and in the form of granule, oral liquid, medicine powder, etc. It is used during radiotherapy and chemotherapy to enhance sensitivity, reduce toxicity and raise treating effect, and may be also used for preventing recurrence or metastasis after tumor resection, and for the conservation treatment of cancer in late stage toimprove life quality.

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Номер записи: 24
07-05-2014 дата публикации

Interplanetary internet cluster networking method

Номер: CN103781079A
Автор: ZHANG GENGXIN, GOU LIANG, BIAN DONGMING, XIE ZHIDONG, ZHANG WEI, KONG BO, LI YONGQIANG
Принадлежит:

The invention discloses an interplanetary internet cluster networking method. The method comprises the steps that an interplanetary internet structure is set up according to the composition and the function of each part in the whole interplanetary internet network; all nodes in the network are divided into different clusters adopting independent networking route policies according to the property, the function, the area position and the task requirement, and therefore a cluster networking model can be set up; the boundary nodes are selected, a control link is separated from a service link, and inter-domain control information transmission and intra-domain control information transmission are separated; a planet network sub-layer in agreement with the international standard, a backbone network sub-layer possessing the same protocol and the same function on all the nodes, and a binding layer storing and forwarding binding packages among the nodes are constructed, and a network protocol stack ...

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Номер записи: 25
02-07-2014 дата публикации

Signal detection and signal information interpretation method based on spectral pattern analysis

Номер: CN103905129A
Автор: BIAN DONGMING, HAN FUCHUN, ZHENG HUI, SUN QIAN, HU JING, LI YONGQIANG, XIE ZHIDONG, ZHANG GENGXIN
Принадлежит:

The invention discloses a signal detection and signal information interpretation method based on spectral pattern analysis. The method includes the steps of obtaining frequency spectrum data, a mean value spectrum and a mean value spectrum histogram, delimiting areas and determined areas, obtaining independent signals, a signal histogram and a signal principle value, and interpreting signal information. The signal detection and signal information interpretation method is high in adaptability, good in anti-noise performance, low in calculation complexity and free of priori knowledge requirements.

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Номер записи: 26