costas

基于互相关函数，采用求和广义互相关函数(summed-GCC)法用于机器人系统平台。由于采用不同的映射函数(mapping functions)，GCC法在该平台下，只需三个麦克风即可进行三维定位，突破了基于TDOA法进行三维声源定位最少需4个麦克风的限制(Based on cross-correlation function, using generalized cross-correlation function sum (summed-GCC) method for the robot system platform. Because of using different mapping function (mapping functions), GCC method in the platform, the only three to three-dimensional microphone positioning, a breakthrough TDOA method based on three-dimensional sound localization will take at least four microphone restrictions)

说明：  U盘读写模块，实现电脑与U盘自动连接，发送，传输数据(U-reader module, computerization and U disk automatically, sending, transmission of data)

performance evaluation of reactive and proactive protocols. the performance is evaluated with respect to throughput over TCP and UDP connections types

用C++实现BPSK的仿真，包括信源，调制，信道，解调，计算误比特率(Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation)

本源码是本人工作之余码的，CC2540低功耗蓝牙的notify工作方式总结，这源码是很好的理解notify例子，代码中有注释，希望对大家有所帮助(The source code is my spare time, notify work CC2540 Bluetooth low energy summary, this source is well understood notify example, the code notes, we hope to help)

说明：  对数字信号进行相位幅度调制，并在接收端成功解调(QAM of Digital Signal and Successful Demodulation at Receiver)

A good book for C++ for beginners

3G参数测试程序，主要测试3G的主要参数(3G parametric test procedures commonly used parameters, the main test of 3G)

说明：  实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on )

恒模算法(CMA)是实际中应用最广的一种盲均衡算法,这里主要时提出了改进的lc-cma算法的源程序代码()