rengongshichang

IS-95系统的仿真，仿真原理对应《通信系统仿真》第二版的12章的最后一个例子(simulation of IS-95 system, and the thoery of this code if from a book named simulation of communication systems . If you want to have a deep uderstanding on the code, please refer to chaper 12, the last example)

本书描述了matlab的一些使用方法和对一些算法的简要介绍(This book describes some use matlab and a brief description of some algorithms)

K-means algorithm developed in Matlab. Classify data.

这是一个Slantlet的matlab实现，觉得比较有用，推荐一下(This is a Slantlet the matlab implementation, feel more useful, recommend what)

说明：  脉冲不变法变换巴特沃思低通滤波器设计 基于matlab仿真编程(pulse unchanged France transform Butterworth low-pass filter design based on Matlab simulation programming)

新型改进光双二进制传输的编解码方案 提出了改进型光双二进制信号在高速率(≥10Gbit／s)传输时预编码的一种新方案。通过分析编解码过 程，证明该信号传输时不易受码间干扰影响，能用二进制强度调制一直接检测的系统接收信号。仿真产生了该信 号的2种码型。结果表明，采用色散补偿技术能使MD NRZ和MD．RZ信号在长距离传输后克服眼图失真，MD-RZ 信号比MD．NRZ信号在传输后有更低的误码率。(Abstract：Anovel pre-coding schemeformodified optical duobinary signalswasproposed．It couldbe applied to缸ansmit high speed data mte signals(≥ 10Gbit／s)．Through analyzing the process of coding and decoding，It Was demonstrated thatmodified opticalduobinary sign alshave capabilityin reductionofpulse—to-pulseinteraction ， and couldbe di． recaymeasured through aconventionalbinaryintensitymodulationdirectdetection(IM—DD)receiver．Twomodified optical duobinary sign als’formats were simulated to generate．Sim ulation results show that MD．NRZ and MD-RZ signals’ formats Can avoid the eye diagrams’distortion for long—distance transmission，if the dispersion Can be compe nsated in each amplifier span．Moreover,theMD-RZ signalhaslowerBER than theIVID-NRZ signal afterlong-distance comm．unication．)

计算光子晶体的能带投影图，为波导模的确定以及光子晶体薄板提供基础(calculated photonic crystals with projection to determine the mode waveguides and photonic crystal to provide the basic sheet)

张小飞(南京航空航天大学） 阵列自适应信号处理的部分代码，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法 等(Xiaofei (Nanjing University of Aeronautics) adaptive array signal processing part of the code, including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm)

uwb各种程序，可以产生信号、冲激响应等等各类仿真任务完美完成(UWB programs can generate signals, impulse response and other simulation tasks to complete perfectly)

说明：  含分布式电源的半不变量法概率潮流计算程序(Probabilistic Power Flow Computing Program Based on Semi-invariant Method)