chang_human_voice_Matlab-master

A differential QPSK modem using the TMS320C6711 DSK

说明：  最简单的收发程序，可以用于超宽带测距，信道通信等等(The simplest transceiver program can be used in UWB ranging, channel communication and so on)

AM调制与解调，信息信号和载波信号经过AM调制并加噪得到AM信号的频谱，再经过带通滤波器，相干解调，低通滤波后得到解调后的信号。(AM modulation and demodulation, information signal and carrier signal through AM modulation and noise to get the spectrum of AM signal, then through band-pass filter, coherent demodulation, low-pass filter to get the demodulated signal.)

说明：  适用于VS2010以后的版本对串口进行读取数据和写入数据到串口。(Applicable to VS2010 and later versions to read data and write data to the serial port.)

说明：  本程序为回波抵消程序，程序中附有解释，很明了，并能到达到消除回波的效果(This procedure for the echo cancellation process, accompanied by explanation of procedures, it is clear, and able to achieve the elimination of echo effect)

说明：  能够有效在MIMO通信中进行ZF和MMSE预编码(Effective precoding of ZF and MMSE)

说明：  手机GSM TI 平台 串口 uart 驱动 源代码(Serial port uart driver source code of mobile phone GSM TI platform)

提供了用MATLAB进行数字图像处理、压缩感知、多种信号重建算法、多种熵编码的MATLAB代码。(The MATLAB codes for digital image processing, compression sensing, multiple signal reconstruction algorithms and multiple entropy coding are provided.)

16QAM调制与解调程序，使用matlab运行(16QAM modulation and demodulation process, the use of matlab run)

说明：  实时声音采集，双通道采集声音信号，并且进行降噪处理和FFT变换(Real time sound acquisition)