lnmf

用ＭＡＴＬＡＢ实现不同线型、不同颜色，不同位置画出多个矩形(Using MATLAB to achieve different line, different colors, different locations to draw multiple rectangles)

说明：  一个matlab关于同步电机的仿真，很有价值的(A matlab simulation on the synchronous motor, great value)

说明：  GPS中频信号模拟源设计实现，通过分析当前GPS信号模拟源的数学模型方案，改进后进行实现。(The GPS intermediate frequency signal imitation source design realizes, through analysis current GPS signal imitation source mathematical model plan, after the improvement, carries on realizes. )

该程序绘制了仿真信号的FFT频谱和功率谱，并调用emd分析方法，绘制了emd分解结果，以及瞬时包络和瞬时频率图，还有Hilbert-Huang谱和Hilbert边际谱。(Program to draw the FFT spectrum of simulation signal and power spectrum call the emd analysis method, drawn emd decomposition, as well as instantaneous envelope and instantaneous frequency plot, there is the Hilbert-Huang spectrum and Hilbert marginal spectrum.)

该程序初步实现了M序列的生成，并且详细地进行了频域法的系统辨识分析。(The program is the initial realization of the M-sequence generation, and detail the frequency domain method of system identification analysis.)

Project of my mtech partner computer store

合成地震记录是用声波测井或垂直地震剖面资料经过人工合成转换成的地震记录（地震道） 合成记录的制作是一个简化的一维正演的过程，合成记录F(t)是地震子波S(t)与反射系数R(t)褶积的结果。(Synthetic seismogram is sonic or vertical seismic profile data after conversion into synthetic seismograms (seismic trace) the production of synthetic seismogram is a simplified one-dimensional forward modeling process, synthetic seismogram F (t) is the seismic wavelet S (t) and the reflection coefficient R (t) the convolution results.)

程序的主要功能是做了一定范围的信噪比下，对每个信噪比：随机信号QPSK调制； 根据Alamouti方案的矩阵进行编码；发送信号经过瑞利信道和加入高斯白噪声； 接收信号采用最大比合并的方法；最后对合并信号进行最大似然判决并求误符号率。 结果表明10^-3对应大约12->13dB(Procedure main function is to do a certain range of SNR for each signal to noise ratio: random signal QPSK modulation program in accordance with Alamouti coding matrix send signals through Rayleigh channel and adding Gaussian white noise received signal using maximal-ratio combining method Finally the combined signal and the maximum likelihood decision for symbol error rate. The results showed that about 10 ^-3 corresponds to 12-> 13dB)

说明：  Gauss elimination method to solve system of equations

matlab命令大全。姚东，王爱民，冯峰，王朝阳等编著(matlab command Daquan. Yao Dong, Wang Aimin, Feng Feng, Chao-Yang Wang, eds)