220kv

基于相位调制器产生六倍频光毫米波的 OFDM信号光传输系统研究 (A Radio Over Fiber System with Frequency Sextuple Optical Millimeter
Wave Generation Carrying OFDM Signal Utilizing Phase Modulator)

多星座导航系统GDOP递推特性的仿真程序,程序主要是争对在现有系统中增加一颗现有星座的可见星，一颗其他星座的可见星时GDOP的变化情况组合仿真(GDOP recursive multi-constellation navigation system features simulation program, the program is mainly a struggle to increase the existing constellation of stars visible in the current system, a combination of changes in the simulation GDOP when other signs of visible stars)

这是一种包络线的实例特殊情况emd_blX(This is an example of envelope special circumstances emd_blx)

说明：  基于负熵的盲源分离算法，可以用于语音的盲分离，提高语音信号质量。本代码中，对原始信号分别为正弦波，方波，和随机信号，通过高斯信道的混合矩阵，获得接收信号，并通过基于负熵的盲源分离算法分理处原始信号。PS：Matlab版本为2018Ra(The blind source separation algorithm based on negative entropy can be used for speech blind separation and improve the quality of speech signal. In this code, for the original signal, sine wave, square wave and random signal, the received signal is obtained through the mixture matrix of the Gauss channel, and the original signal is processed by the blind source separation algorithm based on negative entropy. PS: MATLAB Version 2018Ra)

Dijkstra s algorithm, conceived by Dutch computer scientist Edsger Dijkstra in 1959, is a graph search algorithm that solves the single-source shortest path

在matlab环境下编译的语音信号端点检测程序，基于短时能量和过零率的三阀值方法(Voice signal endpoint detection program, compiled under the Matlab environment based on short-term energy and zero crossing rate threshold method)

MIMO TOOLBox Matlab V2.2

Quasi-Orthogonal Space-Time-Frequency Trellis Codes for MIMO-OFDM Systems

本程序能够准确的计算非线性动力系统的分岔图，相图，波形图，从而可以为工程技术人员和科研人员的理论建模提供数值模拟论证方法。(The program can calculate the exact bifurcation diagram nonlinear dynamical system, phase diagram, waveform, which can provide a method for the numerical simulation of argumentation theoretical modeling engineers and researchers.)

LDPC(Low-density-parity-check，低密度奇偶校验)码是一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低，结构灵活，是近年信道编码领域的研究热点(LDPC (Low-density-parity-check, low-density parity check) codes are a class of sparse check matrix of linear block codes, is not only good performance approaching Shannon limit, and the decoding complexity low, flexible structure , the field of channel coding in recent years the research focus)