code

说明：  example for linear optimization

MSK modulation and demodulation with carrier recovery

leach protocol of wireless sensor network

详细介绍了各种先进的PID控制方法，并用Matlab对各种方法进行了仿真分析。相信对广大工程技术人员有所裨益。(detailed description of the various advanced PID control method Matlab and used various methods to the simulation analysis. I believe that the majority of engineering and technical personnel benefits.)

基于LMS算法的自适应回波抵消系统。 可应用与无线直放站回波抵消算法，改善25DB。 也应用与噪声抵消系统。(base on lms arithmetic A Radio Repeater Interference Cancellation Model for MobileCommunication Systems )

估计功率谱密度的平滑周期图是一种计算简单的经典方法，其主要特点是与任何模型参数无关，是一种非参数化的方法。(Estimated power spectral density is a smooth periodogram simple classical calculation method, the main feature is not related to any model parameter, is a non-parametric methods.)

best code for mimo-ofdm, basic for beginners, very benefical

系统辨识与自适应仿真 书的源程序 非常好的福利(System identification and adaptive simulation source book very good benefits)

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

在matlab上实现2ASK信号的调制，以及相干解调，并给出调制/解调后的信号波形。主程序名为ASKmod.m，调用子程序为T2F.m、F2T.m、 和LPF.m。(To achieve in matlab 2ASK signal modulation, and coherent demodulation, and given modulation/demodulation of signal waveform. Main program, called ASKmod.m, call subroutine to T2F.m, F2T.m, and LPF.m.)