根升余弦基带成形滤波器的设计及其DSP实现.最后利用系数对称特性，在某软件无线电电台系统的DSP 芯片中编程， 实现均方根升余弦滤波器的成形滤波算法-First this essay introduces baseband shaped filter theory and requirements of an SDR system on shaped filtering. And, the author introduces various realization methods