By computer simulation with convolution sum of FIR digital filter, the results show that the model is the same as traditional binary coding arithmetic, which can be used in chaotic signal processing systems. operation of the genetic algorithm; 最后通过FIR数字滤波器卷积操作的计算机数值仿真,结果表明采用这些方法运算得到的结果与传统二进制算术编码算法完全等效,可应用于混沌信号处理系统。