4×4MIMO，QAM调制，ZF检测IT++仿真代码，误码率随信噪比的变化曲线，Visual Studio。
MIMO, QAM modulation, ZF detection of itpp simulation code, the change curve of BER with SNR, visual studio. (2020-03-02, C/C++, 3573KB, 下载0次)
在n个城市建设通信网络，只需架设n-1条线路即可至少包含10个城市，城市数n由键盘录入，城市坐标由随机函数产生小于100的整数
In the construction of communication network in n cities, only n-1 lines are needed to include at least 10 cities. The number of cities n is input by keyboard, and the coordinates of cities are generated by random functions into integers less than 100. (2019-08-01, C/C++, 67KB, 下载2次)
详细介绍了USRP硬件的发射和接收的原理
The principle of transmitting and receiving USRP hardware is introduced in detail. (2018-10-10, C/C++, 272KB, 下载10次)
这是腾讯近期开源的即时通信项目：mars的源码，对于想开发自己的即时通信软件的用户有很好的参考价值。
This is the Tencent's recent open source instant messaging project: Mars source code, for the development of their own instant messaging software users have a good reference value. (2017-10-15, C/C++, 20857KB, 下载3次)
VC++实现对PIC33F平台软件进行通讯，完成对遥信量、遥测量、电度等监视，并能够实现设置参数等功能。
VC ++ Realizes the communication of PIC33F platform software, completes the monitoring of remote traffic, telemetry and electric power, and can realize the function of setting parameters. (2017-08-21, C/C++, 4542KB, 下载5次)
实现了一个基于卷积码的通信系统 可以统计不同信噪比的误码率
A convolutional code based communication system and implemented to calculate the BER of different SNR (2017-06-16, C/C++, 49KB, 下载3次)
8PSK在高斯信道下的误码率与信噪比的关系。
BER and SNR relationship 8PSK in Gaussian channel. (2015-01-19, C/C++, 786KB, 下载2次)
C代码实现的AMR语音编解码。AMR多速率编解码技术相比原有的GSM语音编码器采用固定的编码速率，AMR语音编码器则可根据无线信道和传输状况来自适应地选择一种最佳信道模式（全速率或半速率）和信源编码模式（以比特率来区分）进行编码传输。
C code to achieve AMR voice codec. AMR multi rate coding and decoding technology of GSM speech coder is compared to the original fixed code rate, AMR speech coder can be based on the wireless channel and the transmission state to adaptively an optimal channel mode (full rate or half rate) and source coding mode (to distinguish between the transmission with a bit rate). (2014-12-22, C/C++, 195KB, 下载42次)
LFM线性调频波的MATLAB仿真 利用matlab软件设计匹配滤波器。具体包括：
1）：阐述脉冲压缩（匹配滤波）的基本原理；
2）：输入信号为线性调频信号，存在的噪声信号为白噪声；
3）：通过脉冲压缩处理，讨论输出信噪比的改善。
The the LFM chirp wave MATLAB simulation using matlab software design matched filter. Specifically including: 1): elaborated pulse compression (the basic principle of the matched filter) 2): the input signal is a chirp signal, the noise present in the signal is white noise 3): by a pulse compression processing discussed output SNR improved. (2012-10-27, C/C++, 263KB, 下载65次)
（1） 分析QPSK调制、解调原理，并画出其系统框图；
（2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形；
（3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形；
（4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱；
（5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图；
（6） 进行8PSK解调，输出解码序列，画出解调后信号波形；
（7） 计算系统信噪比、传输误码率。
(1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate. (2012-06-24, C/C++, 2KB, 下载109次)
ITU-T G.722.2
国际电信联盟G.722.2建议书，2003年7月版。该建议书是语音通讯领域的压缩标准，被GSM，WCDMA，3GPP等采用，题目为16kbit下的宽带语音编码，使用自适应多率宽带编码。
内容主要有代数码激励线性预测编码(ACELP)，话音活动检测(VAD)等。
This Recommendation describes the high quality Adaptive Multi-Rate Wideband (AMR-WB)
encoder and decoder that is primarily intended for 7 kHz bandwidth speech signals. AMR-WB
operates at a multitude of bit rates ranging from 6.6 kbit/s to 23.85 kbit/s. The bit rate may be
changed at any 20-ms frame boundary.
Annex C includes an integrated C source code software package which contains the implementation
of the G.722.2 encoder and decoder and its Annexes A and B and Appendix I. A set of digital test
vectors for developers is provided in Annex D. These test vectors are a verification tool providing an
indication of success in implementing this codec.
G.722.2 AMR-WB is the same codec as the 3GPP AMR-WB. The corresponding 3GPP
specifications are TS 26.190 for the speech codec and TS 26.194 for the Voice Activity Detector. (2010-04-21, C/C++, 711KB, 下载117次)
本程序可实现对于信源的BPSK调制，加入高斯噪声，最后结果输出到指定文件中
This procedure can be achieved for the source of the BPSK modulation, adding Gaussian noise, the final outcome of the output to the specified file (2008-12-01, C/C++, 1KB, 下载16次)
在一个通信系统中对信源的扩频，信道的指定概率加错并在接收端解扩，计算其误码率
In a communication system in the source of the spread spectrum, channel designated fault probability increases and despreading in the receiver to calculate the BER (2008-12-01, C/C++, 1KB, 下载5次)
很不错的信息论与编码课程设计论文，里面包含源码
Very good information theory and coding curriculum design thesis, which contains source (2008-06-22, C/C++, 1KB, 下载24次)
：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。
: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident. (2007-10-30, C/C++, 43KB, 下载45次)
：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。
: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident. (2007-10-30, C/C++, 148KB, 下载84次)
：首先介绍了DS--UWB系统的的发射与接收模型，然后分析了利用滑动相关法对信道进行估讣，并巾此给出
了不同RAKE接收机RAKE合成权系数选取方案。对接收机采用最大比(MRC)、最小均方误差(MM SE)及带均衡
器的(MRC)合并系数选取的误码性能进行了仿真和对比。结果表明了带均衡器的MRC—RAKE只用较少的分支
就可以达到接收性能明显优于MMSE—RAKE的程度。尤其在信噪比比较大时。这种优势更加明显。
: First of all, the introduction of the DS UWB system model of the launch and reception, and then analyzed using the sliding correlation method for estimation of channel obituary, and towels, this gives the RAKE receiver RAKE synthesis of different weights to select the program. On the receiver using maximal ratio (MRC), minimum mean square error (MM SE) and band equalizer (MRC) combined coefficient selected BER simulation and comparison. The results show that the equalizer with MRC-RAKE only with fewer branches on the receiver performance can be achieved significantly better than MMSE-RAKE level. Particularly in the relatively large signal to noise ratio. This advantage becomes even more evident. (2007-10-30, C/C++, 203KB, 下载276次)