数字指令通信系统FIR数字滤波器的设计

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Digital instruction communication is the communication system designed for poor environment under strong noise. In this paper, equiripple approach method is used to establish finite impulse filter （FIR） digital filter model. The anti-noise design of digital instruction communication system is realized and the running result of FIR digital filter under MATLAB and CCS environment is given. The result demonstrates that the performance of this solution is stable with better effect and the expected purpose has been achieved.数字指令通信是针对强噪声等恶劣环境设计的通信系统，利用等波纹逼近法建立了有限冲击响应（FIR）数字滤波器模型，实现了数字指令通信系统的抗噪声设计，给出了在MATLAB与CCS环境下FIR数字滤波器的运行结果。结果表明：该方案性能稳定，效果良好，达到了预期的目的。