本次设计的数字基带成形滤波器参照IS-95标准进行设计，对输入信号进行4倍过采。IS-95标准为：其中通带频率为590Khz，通带的链波大小1.5dB，截止带的频率为740Khz，截止带的衰减量为40dB，传输的数据率为1.2288Mhz，传输的频宽为1.25Mhz。-The design of the digital base-band shaping filter with reference to IS-95 standard design, the input signal to 4 times over mining. IS-95 standards as follows: one pass-band frequency is 590Khz, passband wave the size of the chain of 1.5dB, closing with the frequency of 740Khz, closing with attenuation of 40dB, the data transmission rate of 1.2288Mhz, transmission bandwidth for 1.25Mhz.