时频分析

说明：  基于经典music算法及其修正算法的DOA估计以及性能仿真(DOA estimation and performance simulation based on classical Music algorithm and its modified algorithm)

船载自动识别系统(AIS)技术资料，我在项目开发过程中搜集的，做AIS相关开发必备！(Ship-borne Automatic Identification System (AIS) technical information, I am in the project development process to collect, and to do related to the development of AIS must!)

this file talk about network

利用matlab simulink产生两路模拟语音信号，经过pcm编码、时分复用、DPSK调制经过同一个信道单向传输到对应的接收端。常用的三个模块 simulink、通信模块、信号处理模块。包括课程设计报告。(Using matlab simulink produce two analog voice signals through the pcm encoding, time division multiplexing, DPSK modulation over the same one-way transmission channel to a corresponding receiver. The three modules used simulink, communication module, a signal processing module. Including curriculum design report.)

说明：  实现风速拟合威布尔分布参数估计及ARMA预测，MATLAB可运行。。。。。(Wind speed fitting Weibull distribution parameter estimation)

lbc_example：未编码的BPSK调制的性能（理论计算与仿真）、重复码硬判决的性能 lbc_example_SD： 未编码的BPSK调制的性能（理论计算）、重复码硬判决的性能、重复码软判决的性能 lbc_example_SD_EbNo：lbc_example_SD中的性能，并且进一步考虑了码率不同时，对于信道的SNR值进行归一化，以Eb/No = SNR/(2*R)为横坐标时的比较结果 lbc_example_Hamming_EbNo：汉明码，硬判决译码的性能(Lbc_example: Performance of uncoded BPSK modulation (theoretical calculation and simulation), performance of duplicate code hard decision Lbc_example_SD: Performance of uncoded BPSK modulation (theoretical calculation), performance of hard decision of duplicate code, performance of soft decision of duplicate code The performance of lbc_example_SD_EbNo: lbc_example_SD is considered, and the SNR value of channel is normalized when the bit rate is different. The comparison results are obtained when Eb/No = SNR/(2*R) is the abscissa coordinate. Lbc_example_Hamming_EbNo: Hamming Code, Performance of Hard Decision Decoding)

手机中利用二维码进行定位.（标记部分） 程序包括两个部分,这部分为标记部分,需两部分配合使用(Project Name:QR_CodeScan_Baoji Description:Mobile phone use qr code to locate (tag))

ofdm仿真程序有关信道传输中的多径效应，多普勒频移，时延扩展(OFDM simulation program on the transmission channel of multi-path effects, Doppler frequency shift, delay spread)

进行信号积累时，有的信号存在多普勒频率，不利于累加。该程序可完成对信号多谱勒频率的补偿。(Signal accumulation, some signal Doppler frequency, is not conducive to the accumulation. The program can be complete compensation of the signal Doppler frequency.)

这是一个学习Symbian的ListBox的好例子,我也是看学个学会的(This is a learning Symbian a good example of the ListBox, I also watch a Institute of Science)