jiaosulvpipeikaermanlvbo

说明：  用模式传输法计算多模干涉波导的模场传输,多模干涉波导参数可调(calculate the beam propagation inside MMI using mode propagation method)

matlab的m文件，是关于汉明码编码的，文件可以直接运行(matlab m-file is on the Hamming code, files can be run directly)

matlab code for envelope detector for analog communications.

根据M值的改变可以产生2、4、8、16PSK数字调制基带信号，且成形滤波器可任选升余弦、根升余弦、高斯。(M may be generated according to a change value 2,4,8,16PSK baseband digital modulation signal, and optionally raised cosine shaping filter, the root raised cosine, Gaussian.)

传感器阵列波束优化设计与应用书籍的第四章matlab程序(Chapter 4 matlab program of book Sensor array beam optimization design and application)

永磁同步电机 文件position为矢量控制位置环、速度环、电流环调节模型 文件speed为矢量控制速度环、电流环PI调节模型(Permanent magnet synchronous motor Position vector control position loop, speed loop, current loop regulation model File PI for vector control speed loop, current loop speed regulation model)

灰度变换，用了线性的两种变换 一种是分段的一种是不分段的 用matlab实现了灰度的变换(Gray level transformation, two transformations with a linear one is not a sub-segmented by gray-scale transform matlab implements)

说明：  sar成像点目标仿真程序MATALAB源代码。能给出 图像。很有用 的(sar imaging point target simulation program MATALAB source code. Can give the image. Useful)

this development will help to develop your program nicely. please read it and make improvement.

直扩系统中的多径干扰信号的估计消除技术，通过仿真标量多径对直达信号的鉴相特性的影响。。(DSSS system multipath interference estimate signal cancellation technology, through the simulation of scalar multi-path of the direct signal phase characteristics. .)