LFM

产生64QAM基带通信系统发射机：基带成型滤波采用3种方式（1）采用每个符号调制一个成型滤波函数，然后将各个函数进行时域叠加的方法； （2）采用信号与低通滤波器响应函数卷积的方法；（3） matlab自带的升余弦函数(Produce 64QAM baseband communication system transmitter: baseband shaping filter uses three ways (1) the use of a molding each symbol modulation filter function, and then each time domain overlay function (2) the use of signals and low-pass filter response function convolution method (3) matlab comes with a raised cosine function)

bch编码译码程序、很好的东西只得收藏。。。。。。。。(BCH coding decoding process........)

matlab具有强大的数值计算能力，生成的图形简便，直观。该文件中包含了一些matlab中数值计算方面的例程，包含了一些原创程序。(matlab numerical calculation has powerful ability to generate graphics simple and intuitive. The document contains a number of numerical computing matlab routine, including a number of original procedures.)

基于MATLAB的遗传算法的旅行商（TSP）问题求解，TSP问题：有一个推销员，要到n个城市推销商品，他要找出一个包含所有n个城市的具有最短路程的环路。(Solving based MATLAB genetic algorithm traveling salesman problem (TSP), TSP problem: a salesman to sell goods to the n cities, he wants to find the one that contains all the n loop with the shortest distance of the city.)

对低频段的带通信号进行高精度的时延估计，有详细说明。(Of low-frequency band signal for high-precision time-delay estimation, has a detailed description.)

generating AM signal to use in adaptive algorithm for remove direct path in passive radar

用Matlab编程，实现解决该问题的单样本训练BP网络，设置一个停止迭代的误差Emin和最大迭代次数。在调试过程中，通过不断调整隐层节点数，学习率η，找到收敛速度快且误差小的一组参数。产生均匀分布在区间[-4，4]的测试样本，输入建立的模型得到输出，与Hermit多项式的期望输出进行比较计算总误差（运行5次，取平均值）(Using Matlab programming, to solve the problem of single sample training BP network, set a stop error iterations Emin and the maximum number of iterations. In the debugging process, by continuously adjusting the hidden layer nodes, learning rate η, fast convergence and find a set of parameters small errors. Produce a uniform distribution in the interval [4,4] of the test sample, the model has been established input output with the expected output Hermit polynomial calculated by comparing the total error (run 5 times the average))

MATLAB编程源码，结果为画出多个正六边形。(MATLAB programming source, the results painted a number of regular hexagon.)

通信系统仿真原理与无线应用第三章全部程序(Communication System Simulation Principle and wireless applications of all procedures in Chapter III)

正弦信号叠加高斯白噪声，通过IIR低通滤波器，并画出时域和频域上的波形频谱图(Sinusoidal signal superimposed Gaussian white noise through the IIR low-pass filter, and draw on the time domain and frequency domain waveform spectrum)