09-05-2019 дата публикации
Номер: US20190140676A1
Принадлежит:
A signal processing apparatus includes an oscillation circuit, an interpolation circuit, a matching filter, a high-pass filter and a timing recovery circuit. The oscillation circuit generates a clock signal. The interpolation circuit performs interpolation on an input signal according to the clock signal to generate an interpolation sample result. The matching filter demodulates the interpolation sample result to generate an output signal. The high-pass filter performs high-pass filtering on the interpolation sample result to generate a filtered result. The timing recovery circuit receives the filtered result, and performs timing recovery according to the filtered result. 1. A signal receiving apparatus , comprising:an oscillation circuit, generating a clock signal;an interpolation circuit, performing interpolation on an input signal according to the clock signal to generate an interpolation sample result;a matching filter, demodulating the interpolation sample result to generate an output signal;a high-pass filter, performing high-pass filtering on the interpolation sample result to generate a filtered signal; anda timing recovering circuit, receiving the filtered signal, and performing timing recovery according to the filtered signal,wherein the high-pass filter is implemented to share a part of a circuit with the matching filter, and [{'sup': th', 'th, 'a delay circuit, generating N number of delayed signals for the interpolation sample result, wherein a delay amount corresponding to an (i+1)delayed signal is greater than a delay amount corresponding to an idelayed signal, i is an integer index between 1 and (N−1), and N is an integer greater than 1;'}, {'sup': th', 'th', 'th, 'a multiplication circuit, multiplying the idelayed signal by an iweight to generate an iweighted result;'}, 'a first addition circuit, summing up the interpolation sample result and the delayed signals having the integer index i in even numbers to generate a first summation value;', 'a ...
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