通过串口采集下位机信息 smart

说明：  基于matlab的QPSK调制与解调程序(QPSK modulation and demodulation)

高动态模型，加加速度，加速度和速度都可以改变，仿真出多普勒频偏变化和相位变化。(High dynamic model of acceleration, acceleration and speed can be changed, the simulation of doppler frequency and phase changes.)

function ber_ml=Alamoudi(snr,soglia) This function simulates a Alamouti scheme. The input variables are soglia and snr. Soglia: is the number of errors after which the iterations stop. For better results, put high value of soglia, but the simulation is longer. snr: the signal to noise ratio (if u don t know what is a signal to noise ratio, well, come back to your high school!). Note: U should use this function with a main function in wich u chose different value of snr. That s because this function work just with one value of snr. If u have problem with this code, write me at m.allegritti@email.it. Take care! Max

说明：  该文件LDPC码的校验矩阵的matlab代码，可以使用该校验矩阵得到规则LDPC码。(Matlab code of LDPC check matrix)

基于libmodbus编译，使用vs2013编译完整，亲测可行。(Compiled based on libmodbus, compiled using vs2013, complete, pro test feasible.)

卷积码的Viterbi译码算法仿真程序 要求：递归卷积码，归零处理(Convolutional Codes Viterbi decoding algorithm simulation program requirements : recursive convolutional codes and zeroing treatment)

The future satellite communication systems are re- quired to support the higher transmission data rate for providing the multimedia services by employing the e铿僣ient modulation method such as multi-level QAM.

ptz 云台控制软件, 内带C++ 源码(ptz PTZ control software, which brought C++ source)

实现ls信道估计，计算误码率计算，均方误差，对比MMSE和ls两种算法(ls estimation ababababababbababababaa)

说明：  ADMM算法 切普信号的参数估计问题 包括个数估计和频率估计(The parameter estimation of Chep signal based on ADMM algorithm includes number estimation and frequency estimation.)