optical STTC编码

这工程序的的功能主要是机遇MATLAB的通信数字调制系统(This work program is an opportunity the main function of digital modulation system of communication MATLAB)

说明：  用6级移位寄存器实现产生m序列，希望对各位有所帮助(Shift registers with a 6 m sequence generation, want to help you)

The TransferJet Tech. uses concatenated channel codeing (Reed-Solomon coding & convolutional coding) scheme. For, Reed-Solomon coding, r=224/240,16 parity bit. For Convolutional coding, K=3, r=1/2.

基于循环前缀的符号定时同步和载波同步的ofdm仿真的matlab程序(Symbol Timing and Carrier Synchronization of ofdm Matlab simulation procedures.)

K最邻近密度估计技术是一种分类方法，不是聚类方法。 不是最优方法，实践中比较流行。 通俗但不一定易懂的规则是： 1.计算待分类数据和不同类中每一个数据的距离（欧氏或马氏）。 2.选出最小的前K数据个距离，这里用到选择排序法。 3.对比这前K个距离，找出K个数据中包含最多的是那个类的数据，即为待分类数据所在的类。(K nearest neighbor density estimation is a classification method, not a clustering method. It is not the best method, but it is popular in practice. Popular but not necessarily understandable rule is: 1. calculate the distance between the data to be classified and the data in each other (Euclidean or Markov). 2. select the minimum distance from the previous K data, where the choice sorting method is used. 3. compare the previous K distances to find out which K data contains the most data of that class, that is, the class to which the data to be classified is located.)

设计一M阶自适应回波抵消器，已u(n)作为系统输入，d(n)作为系统期望响应，其中d(n)中混有u(n)的回声，信号以8kHz采样，现要求回波抵消器可以消除16ms之内的回声(The design of a M-order adaptive echo cancellation, and have u (n) as the system input, d (n) as a system to respond to the expectations, in which d (n) in a mixture of u (n) of the echo signal to 8kHz sampling, are requirements 16ms echo cancellation device can be eliminated within the echo)

matlab数字信号处理课程设计，用插值和抽取实现频分复用系统设计(matlab digital signal processing course design, using interpolation and decimation to achieve frequency division multiplexing system)

本函数在matlab实现阻抗圆图，通过调用switch（）函数，可以得出传输线的反射系数，以及支节匹配等参数，本函数可以实现单、双和三支节匹配。(The realization of the impedance function in matlab circle map, by calling the switch () function of transmission line can be drawn of the reflection coefficient, as well as the support section to match the parameters, this function can achieve a single, double and three matching section.)

说明：  改进后的Harris检测，能大大提高检测效率。(Harris improved detection can greatly increase the efficiency of detection.)

一个描述左手材料的一维FDTD程序，适合初学者参考。(A description of the one-dimensional FDTD program of the left-handed materials and reference for beginners.)