RDT

本程序是对IEEE 802.16e物理层和链路层的仿真。 使用matlab的simulink仿真工具，先运行data.m产生仿真数据，再运行WiMAX_Test_4.dll进行仿真。(This program is the physical and link layer simulation of IEEE 802.16e. The simulation uses the simulink tool of MATLAB. First,run data.m to generate data, and then run WiMAX_Test_4.dll.)

非线性方程组数值计算，MATLAB语言实现。包括多种迭代方法，牛顿法，拟牛顿法，以及相关的改进算法。(Numerical calculation implementation)

扩频通信的一篇好论文，文件比较齐全比较齐全(A spread spectrum communication papers, documents a relatively complete and relatively complete)

采用matlab7.8处理图片的英文教程(the English tutorial about using Matlab7.8 process images)

无线通信中，多径信道下，为了消除码间干扰，设计的均衡器，并且是采用自适应的LMS算法，同时用训练序列，通过迭代的方式，自适应调整均衡器的各个参数。(Wireless communications, multi-path channel, in order to eliminate inter-symbol interference, the design of equalizer, and the LMS adaptive algorithm, at the same time using the training sequence, the way through the iterative, adaptive equalizer to adjust the various parameters.)

说明：  这个是卷积编码程序的m文件， 已经调通！并加上了注释。(This is a convolutional coding process m-files have been transferred Pass! And add a comment.)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

Chaos in a fractional order Chua s system

说明：  SeismicLab是关于地震资料处理的matlab程序，可以实现简单的地震资料去噪处理(Seismic lab is a matlab program about seismic data processing, which can realize simple seismic data denoising)

MATLAB Code for Particle Swarm Optimization Algorithm to optimized unconstrained Optimization Problem