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A signal processing method and device

A signal processing and signal technology, applied in the field of signal processing, can solve the problem of low accuracy of signal processing results, achieve the effect of making up for FIR bandpass fluctuation and transition band attenuation, reducing spectrum leakage, and alleviating fence effect

Active Publication Date: 2016-09-07
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Claims
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Problems solved by technology

[0007] In view of this, the present invention provides a signal processing method and device, which solves the problem of low accuracy of signal processing results in the prior art

Method used

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  • A signal processing method and device
  • A signal processing method and device
  • A signal processing method and device

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] Such as figure 2 The shown flow chart of a signal processing method provided by Embodiment 1 of the present application includes:

[0056] Step S201: conditioning the original signal according to preset conditioning conditions to obtain an analog signal;

[0057] Wherein, the conditioning condition may be the condition of the input signal of the subsequent A / D conversion structure.

[0058] Specifically, the adjustment process includes: power amplifi...

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Abstract

The application provides a signal processing method, including: conditioning the original signal according to preset conditioning conditions to obtain an analog signal; performing A / D conversion on the analog signal to obtain a digital signal; performing digital signal processing on the basis of the FIR algorithm and the FFT algorithm. spectrum analysis to obtain the first signal; correct the frequency and amplitude of the first signal according to the preset correction algorithm to obtain the second signal; and compensate the amplitude of the second signal according to the preset compensation rule to obtain the third signal and output to a computing device. Using this method, after analyzing the frequency spectrum of the digital signal according to the FIR algorithm and the FFT algorithm, the frequency and amplitude are corrected and the amplitude is compensated. The signal is corrected to reduce the spectrum leakage phenomenon of the FFT algorithm, and at the same time alleviate the fence effect of the FFT algorithm; and the amplitude compensation of the signal makes up for the problems of FIR band-pass fluctuation and transition band attenuation, and improves the signal processing results. accuracy.

Description

technical field [0001] The present invention relates to the field of signal processing, more specifically, to a signal processing method and device. Background technique [0002] With the development of large-scale integrated circuits and the in-depth study of control algorithms, digital signal processing has been widely used in various fields due to its advantages of high precision, high reliability, great flexibility, and easy large-scale integration. [0003] Digital signal processing is to use the method of numerical calculation to process the digital sequence, and transform the signal into a certain form that meets the needs. For example, filter digital signals to limit other frequency bands or filter out noise and interference, or separate them from other signals, perform spectral analysis on signals to understand the spectral composition of signals, and then identify signals. [0004] In the prior art, an FIR (Finite impact response, finite impulse response) algorith...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042G01R23/16
Inventor 郝洪伟刘灿李鹏李龙标蔡杰郭建罗继光李小平
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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