Abstract
Digital filter algorithm is one of the core techniques in signal processing. The FIR digital filter has been widely used in signal processing field because of its strict linear phase and stability, now, it es a very significant researchtask. DSP technology means the technology to plish digital signal processing. Nowadays DSPs are geting more and more atentions in the information field due totoits powerful signal processing ability, ing a hot-point technique munication and other relating signal processing areas.
DSP chip is a sort of microprocessor which is especially suitable for digital signal processing,it is mostly used to eralized diferent digital signal arithmetic Real-time and fleetly. The realization of the FIR digital filter which is based on DSP chip,not only have the merit of good stability, high precision, and have no efect of environmental.,but also,by change the parameter of the filter to change the characteristic of the filter; because of the programm ability of the DSP design is very flexible.
firstly,In this paper,the mainly task is researching the basic theories of the digital filter,and analyzing the designing and realization of the Finite Impulse Response digital filter (FIR);secondly, the method which realized under MATLAB environment,the window functions is primarily introduced,and using the digital filter design tools in MATLAB generat
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