外文翻译--- - 基于TMS320VC5402的自适应FIR滤波器的设计.docx

外文翻译--- - 基于TMS320VC5402的自适应FIR滤波器的设计.docx

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附录AImplementation of Adaptive FIR Filter BasedonTMS320VC5402Wang Xiaojuan Zhang Ze(Department of Automation, College of Sciences of Technology,Inner MongoliaUniversity, Hohhot 010021 China, )AbstractThe article introduced the design and implementation of the adaptive FIR filter based on DSP (Digital Signal Processor). Firstly, simulate experiment of the adaptive FIR filter structure and algorithm is carried out by MATLAB, and adaptive filtering of the input signal added Gauss noise isperformed. Simulation waves are given, and the reference data for the DSP designing is provided. On this foundation, TMS320VC5402 DSP chip is selected as the center processor to design and implement the adaptive FIR filter. The hardware system design module, the software system design flow chartand the related assembly code are given. The uniformity of simulation results and measurement results and the filter effect is satisfied.Keywords: Adaptive FIR filter, TMS320VC5402, LMS algorithm.1 IntroductionAdaptive filter is the one of the modern filter. It is an important application of adaptive signal processing that was developed in the 1940s. Adaptive filter has been used widely in system identification, noise canceller, adaptive line enhance, adaptiveequalization of communication channel, linear predication, adaptive array antenna and so on. Adaptive filter is opposite to fixed coefficients filter. During digital signal processing, a number of unpredictable signals, noises or time-varying signals often need to process, it is impossible to achieve optimal filtering for fixed coefficient filter, soadaptive filter must be designed to track the change of signal and noise. The unique structure and instruction of TMS320VC5402 DSP provide the convenient condition for designing adaptive filter.2 Principle of Adaptive FilterAdaptive filter consists of two basic parts: the filter which applies the required processing on the incoming signal which is to be filtered, and an adaptive algorithm, which

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