包含收发两个客户端程序，结合PCA的尺度不变特征变换(SIFT)算法，FIR 底通和带通滤波器和IIR 底通和带通滤波器。- Transceiver contains two client programs, Combined with PCA scale invariant feature transform (SIFT) algorithm, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.