全数字调制解调器设计的matlab程序 有CIC FIR等滤波器-digital modem design Matlab CIC procedures such as FIR filters

当前工程上广泛采用了一种高效滤波器，即CIC（cascaded integrator-comb filter）将其作为第一级来实现抽取、低通滤波。第二级再用一个普通的FIR滤波器就实现使后端设备工作在较低的频率下且硬件花销少、功耗也很低。-Widely used in the current project, a highly efficient filter, that is, CIC (cascaded integrator-comb filter) as the first level t

级联积分－梳状(Cascaded Integrator–Comb，CIC)滤波器，是种高 效滤波器。它是一种线形相位FIR滤波器，由工作在高抽样率的级联理 想积分器和低抽样率的级联微分器组成,根据抗混叠和抗镜像的指标 确定所需的级联数目。 -Cascaded integrator- comb (Cascaded Integrator-Comb, CIC) filter, is the kind of high efficiency filter. It is a linear p

详细介绍了窄带滤波器的设计，如半带，CIC等原理，原理很详细-Details of the narrow-band filter design, such as half-band, CIC and other principles, the principle in detail

matlab下实现DDC的设计,包括CIC，HB，Fir的设计。-Realization matlab DDC design，including CIC,HB,Fir filter.