LTE变采样滤波器的设计，应用在USRP平台，100M采样率变到30.72M采样率，以及30.72M采样率变换到100M采样率，文档说明，matlab源代码，以及性能仿真-LTE varying sampling filter design, used in USRP platform, 100M sampling rate changes to 30.72M sampling rate, and sample rate conversion 30.72M to 100M sampling ra