【摘要】 文章先简单介绍了FIR数字滤波器的四种结构形式和分析系数误差产生的原因,最后通过一个实例分析说明系数量化误差对不同结构的FIR滤波器特性的影响不同,级联型结构的幅频影响最小,频率取样型结构影响最大。更多还原

【Abstract】 This article firstly introduces the four structural style of FIR digital filter and the cause of the coefficient error produce,then by a instance illustrates the influence of different structure FIR filter’s coefficient quantification error on system performance is different,the influence of amplitude-frequency on cascade form is least,while frequency sampling form is most.更多还原