论文部分内容阅读
Finite Impulse Response(FIR)filter is a base unit in digital signal processing technology and has a good characteristic such as linear phase and stability,so it is widely used in all kinds of intelligent unmanned system.The conventional FIR filter has only one frequency response and cant change its function in real time.It is not suitable for some applications,which need to switch operation modes,such as Software Designed Radio(SDR),audio/video signal processing and sensor filter.So,it is necessary to design a FIR filter which can change the coefficient in real time.