Method and device for processing signal

A signal processing and signal technology, applied in the field of signal processing, can solve the problem of low accuracy of signal processing results, and achieve the effect of compensating for FIR bandpass fluctuation and transition band attenuation, reducing spectral leakage, and improving accuracy

Active Publication Date: 2014-11-05
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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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

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  • Method and device for processing signal
  • Method and device for processing signal
  • Method and device for processing signal

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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] like 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 amplificat...

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Abstract

The invention provides a method for processing a signal. The method includes the steps of conditioning the original signal according to preset conditioning conditions to obtain an analog signal; carrying out A/D conversion on the analog signal to obtain a digital signal; carrying out spectral analysis on the digital signal with an FIR algorithm and an FFT algorithm to obtain a first signal; correcting the frequency and the amplitude of the first signal with a preset correcting algorithm to obtain a second signal; compensating for the amplitude of the second signal according to a preset compensation rule to obtain a third signal, and outputting the third signal to a calculation device. By means of the method, after spectral analysis is carried out on the digital signal with the FIR algorithm and the FFT algorithm, the frequency and the amplitude are corrected, and the amplitude is compensated. The signal is corrected, spectrum leakage of the FFT algorithm is reduced, and meanwhile the picket fence effect of the FFT algorithm is buffered; amplitude compensation is carried out on the signal, FIR band-pass fluctuation and transition band attenuation are overcome, and the accuracy of the signal processing result is improved.

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 Applications(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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