qpskmod

maximum likelihood identification method

这是《Space-Time Codes and MIMO Systems》书中第四章的源程序，包括stbc2x1,2x2,3x1,3x2还有当信道具有相关性时的stbc2x2,4x4等多发多收等的源程序。(This is the "Space-Time Codes and MIMO Systems" source book, Chapter IV, including stbc2x1, 2x2, 3x1, 3x2 as well as when the channel has a relevance stbc2x2, 4x4, etc., etc. overcharged multiple source.)

matlab程序，实现fir各种窗函数的滤波 iir各种类型的滤波(matlab procedures fir achieve a variety of window functions of various types of filtering IIR filtering)

个给定一段信号，采用不同的方法实现QPSK和OQPSK调试信号仿真(A given period of the signal, using different methods to achieve QPSK and OQPSK signal simulation debugging)

this file is use for the compare histogram equalization

轮廓线的提取，处理图像中的对轮廓线的提取问题，matlab源码(Contour extraction processing of the image of the contour extraction problem, matlab source)

数字频率调制又称频移键控（FSK），二进制频移键控记作2FSK。数字频移键控是用载波的频率来传送数字消息，即用所传送的数字消息控制载波的频率。2FSK信号便是符号“1”对应于载频，而符号“0”对应于载频（与不同的另一载频）的已调波形，而且与之间的改变是瞬间完成的。 (Digital frequency modulation called frequency shift keying (FSK), binary frequency shift keying recorded as 2FSK. Digital frequency-shift keying is the carrier frequency to transmit digital information, that is, the number of messages transmitted with the control of the carrier frequency. 2FSK signal is the symbol of "1" corresponds to the carrier frequency, while the symbol "0" corresponds to the carrier frequency (with a different carrier frequency to another) and modulated waveform, but also between the change was instantaneous.)

说明：  这是利用改进的kalman滤波来处理GPS信号，通过与传统的kalman滤波比较得到较好的效果。直接解压，就可以导入work里运行。(This is the improved GPS kalman filter to process the signal, by comparison with the traditional kalman filter get better results. Direct decompression to work can be imported to run. )

基于模型参考自适应的异步电机无速度传感器矢量控制系统(Asynchronous motor speed sensorless vector control system based on model reference adaptive)

说明：  该程序是用matlab语言实现的对瑞利信道的描述，读者可以一试(that the procedure was used Matlab language of the Rayleigh Channel description, readers can a test)