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按分类查找All 通讯编程(495) 

[通讯编程] WhatsApp-Chat-Analyzer-Project

WhatsApp是一个全球通信平台,连接着用户,但在巨大的消息流中,隐藏的见解往往被忽视。本项目...,
WhatsApp, a global communication platform, connects users, but hidden insights often go unnoticed amid the vast message flow. This Project focuses on building a webapp to extract the insights. (2023-10-15, Others, 0KB, 下载0次)

http://www.pudn.com/Download/item/id/1697404955615506.html

[通讯编程] Colab

想法影响者和企业之间合作的平台Tech Reactnaitve 2016-2017 ROR实时聊天实现与ROR...,
Idea A platform for collaboration between influencers and businesses Tech Reactnaitve 2016-2017 ROR realtime chat implementation with ROR actioncable with inhouse chat message exchange protocal (2023-01-25, JavaScript, 0KB, 下载0次)

http://www.pudn.com/Download/item/id/1689616320402447.html

[通讯编程] Otfs_demodulation

B.关于不完全信道状态信息和较低信噪比(dB)下OTFS(正交时频空间)解调技术的技术项目,
B.Tech Project On demodulation technique of OTFS(Orthogonal Time Frequency Space) at imperfect Channel State Information and lower SNR(dB), (2021-11-06, Jupyter Notebook, 0KB, 下载2次)

http://www.pudn.com/Download/item/id/1689351107152231.html

[通讯编程] 直接序列扩频

在三条径的瑞利信道中,对于OFDM: (1)设计一种具体的导引辅助的信道估计方法,测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线。 (2)设频率已同步,设计OFDM一种具体的采用循环前缀进行时间同步方法,画出比特信噪比与捕获概率的关系曲线。 (3)设时间已同步,设计OFDM一种具体的采用循环前缀进行频率同步方法,画出比特信噪比与频率同步误差的关系曲线。
In the three path Rayleigh channel, for OFDM: (1) A specific guidance assisted channel estimation method is designed to measure the BER performance of BPSK modulation. The relationship curve between bit SNR and channel estimation mean square error is drawn, and the relationship curve between bit SNR and bit error rate is drawn. (2) Assuming that the frequency is synchronized, a specific time synchronization method using cyclic prefix is designed, and the relationship curve between bit SNR and acquisition probability is drawn. (3) Assuming that the time is synchronized, a specific frequency synchronization method using cyclic prefix is designed, and the relationship curve between bit signal-to-noise ratio and frequency synchronization error is drawn. (2021-03-21, Others, 45KB, 下载1次)

http://www.pudn.com/Download/item/id/1616298947253682.html

[通讯编程] 247348287high_order-cumulants

高阶累积量进行识别常用的数字调制信号,低信噪比下识别率高达90%
It uses the method of high cumulant to recognize usual digital signals, under low SNR, the radio is still over 90%. (2020-08-11, matlab, 709KB, 下载6次)

http://www.pudn.com/Download/item/id/1597112173572680.html

[通讯编程] MIMOmatlab仿真

按信源编码、信道编码、传输、解码、计算分析的过程模拟实际MIMO技术的误比特率
Simulate the bit error rate of real MIMO technology according to the process of source coding, channel coding, transmission, decoding and calculation analysis (2020-05-13, matlab, 2KB, 下载4次)

http://www.pudn.com/Download/item/id/1589385199735865.html

[通讯编程] cpofdm

cpofdm信道模型仿真,通过仿真得到cpofdm信道模型的复杂度和在各种信噪比下的误码率
Through the simulation of cpofdm channel model, the complexity of cpofdm channel model and the bit error rate under various SNR are obtained (2020-03-11, matlab, 1KB, 下载3次)

http://www.pudn.com/Download/item/id/1583932398950291.html

[通讯编程] 7

7. 单径瑞利信道中的两发一收STBC: (1) 分析误码率的理论性能,画出比特信噪比与误码率的关系曲线。 (2) 请设计一种具体的导引辅助的信道估计方法,用Simulink进行仿真,测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线。
7. Two outgoing and one outgoing STBC in single-path Rayleigh channel: (1) analyze the theoretical performance of bit error rate and draw the curve of the relationship between bit SNR and bit error rate. (2) please design a specific navigation-assisted channel estimation method, Simulink simulation, measurement of BPSK modulation error rate performance.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn. (2019-01-15, matlab, 583KB, 下载15次)

http://www.pudn.com/Download/item/id/1547521237159291.html

[通讯编程] Ff_DtuDemo(c#)

四信物联网demo,用于物联网dtu的通讯测试demo。。。。。。。。。。
Four-in-one Internet of Things demo, communication test dem for Internet of Things dtu (2018-07-27, C#, 768KB, 下载20次)

http://www.pudn.com/Download/item/id/1532683118556646.html

[通讯编程] mingqaipang

多元数据分析的主分量分析投影,基于多相结构的信道化接收机,包括调制,解调,信噪比计算。
Principal component analysis of multivariate data analysis projection, Channelized receiver based on multi-phase structure, Includes the modulation, demodulation, signal to noise ratio calculation. (2017-05-25, Objective-C, 5KB, 下载1次)

http://www.pudn.com/Download/item/id/1495707181712082.html

[通讯编程] DSSS

简单的直接序列扩频程序,讲座不同信噪比情况下系统的误码率。出于简单考虑,信道噪声采用高斯白噪声。
Simple Direct Sequence Spread Spectrum program, lectures BER SNR. Sake of simplicity, the channel noise Gaussian white noise. (2013-03-13, matlab, 4KB, 下载28次)

http://www.pudn.com/Download/item/id/2158431.html

[通讯编程] bps_nrz_ber

NRZ信源 通过bpsk调制 解调 然后通过白噪声信道 求解误码率
NRZ source bpsk modem and then through the white noise channel bit error rate solution (2010-03-07, matlab, 1KB, 下载15次)

http://www.pudn.com/Download/item/id/1078627.html

[通讯编程] Modbus_cn(GB)

modbus协议 对于工控行业用户来说 , 非常实用。希望本资源能对modbus通信软硬件设计者提供帮助。
this protocol is very useful for automation users.it is useful not only for communication but also for electronical and software design. (2010-01-13, Windows_Unix, 1037KB, 下载105次)

http://www.pudn.com/Download/item/id/1039712.html

[通讯编程] stbc

设计一种具体的导引辅助的信道估计方法,用Simulink进行仿真,测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线
Design a specific guide-assisted channel estimation method, using Simulink simulation, measurement BPSK modulation BER performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve (2009-03-01, matlab, 172KB, 下载139次)

http://www.pudn.com/Download/item/id/657333.html

[通讯编程] DS-CDMA

设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线
Design of DS-CDMA code at a specific guide-assisted channel estimation method, the receiver, respectively, the combined use of all benefits, maximal-ratio combining. Using Simulink simulation, measurement BPSK BER performance, draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve (2009-03-01, matlab, 292KB, 下载378次)

http://www.pudn.com/Download/item/id/657330.html

[通讯编程] Text2

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)

http://www.pudn.com/Download/item/id/593101.html

[通讯编程] isag

电信ISAG的服务连接和服务,基于HTTP/SOAP协议,实现数据的上行和下行
ISAG telecommunications services to connect and services, based on HTTP/SOAP protocol, the realization of the upstream and downstream data (2008-08-18, Java, 5595KB, 下载308次)

http://www.pudn.com/Download/item/id/530302.html

[通讯编程] A_Review_of_Joint_Source-Channel_Coding

介绍信源信道联合编码的一篇文章 做常识性了解,比较适合初学者看
Letter of introduction Joint Source Channel Coding of an article to do common-sense understanding, look more suitable for beginners (2008-03-12, Visual C++, 347KB, 下载21次)

http://www.pudn.com/Download/item/id/414683.html

[通讯编程] IEEE

关于联合信源信道编码的文章,来自IEEE,对于JSCC的研究很有参考价值
On the joint source-channel coding of the article, from IEEE, for the study of JSCC valuable (2007-08-26, PDF, 7742KB, 下载47次)

http://www.pudn.com/Download/item/id/323792.html

[通讯编程] fghfgh

一、 实验目的:通过该实验,掌握通过计算机实验信息量和信道容量的计算方法 二、 实验要求:对一个离散的无记忆信源,给定信源的输入概率分布,给定一个信道特性,计算各种信息量和熵,并计算信道容量。 三、 实验原理:
an experimental purposes : the adoption of the experiment, master of information through computer experiments channel capacity and the method of calculating two experimental requirements : right without a discrete memory source, given the input source probability distribution, given a channel characteristics, the calculation of information and entropy, and to calculate the channel capacity. 3, the experimental principle : (2007-05-31, Visual C++, 1KB, 下载14次)

http://www.pudn.com/Download/item/id/290632.html