JPGcoder

qpsk调制解调，外加取样判决脉冲成型，可以加入任何程序模块中，保证解码译码的便利性(qpsk modem, plus a sample sentence pulse shaping, you can add any program module to ensure ease of decoding decoding)

基于能量检测的频谱感知.由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(spectrum sensing in cognitive radio based on energy detection.As the channels in diameter and shadow, not a single user spectrum of capabilities and therefore need different between a user to the spectrum is perceived as more and the effect. this design for the use of a coordination mechanism, the two users collaborate spectrum, the detection rate of increase and decrease the test of time and get a change requires immediate gain. some emulation. )

Matlab GUI 初学者视频教学，非常实用的视频教学文件(Matlab GUI learner video teaching,very useful)

西点军校军事数学建模matlab程序编程(West Point Military mathematical modeling matlab programming)

关于gmsk编码的matlab实现，可直接运行(On GMSK matlab coding to achieve, can be directly run)

计算一个混沌序列的Lyapunov 指数，可以直接把所需要计算的混沌序列输入，就可以得到所要的曲线和数值(Calculation of a chaotic sequence of Lyapunov index, can be directly calculated by the chaotic sequence required input, it can be to the curves and numerical)

说明：  Matlab版本三次样条插值，介绍了Matlab三次样条插值(有条件情况下)，可以在Matlab上直接运行(Matlab version of the cubic spline interpolation, introduced Matlab cubic spline interpolation (under certain conditions), can be run directly on the Matlab)

这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。 (This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, the upper and lower frequency, Gaussian channel model, FFT, PAPR suppression, a variety of synchronization, demodulation and decoding module, and system performance omnibus simulation of the system reliability.)

matlab绘制指南针，能够调整位置，大小和让其旋转一定角度，很实用(Matlab to draw the compass, it can adjust the position, size, and let the rotation Angle, very practical)

The principal characteristic of VSC-HVDC transmission is its ability to independently control the reactive and real power flow at each of the AC systems to which it is connected, at the Point of Common Coupling (PCC). In contrast to line-commutated HVDC transmission, the polarity of the DC link voltage remains the same with the DC current being reversed to change the direction of power flow.