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SJTX
数据通信,没什么很详细的,只是一个素材源玛(Data communication, not very detailed, just a material source ma)
- 2008-03-08 10:59:30下载
- 积分:1
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uwbmultiuserdetection
关于超宽带多用户检测的大家可看看,很好的程序(on Ultra-Wideband Multi-User Detection you can see, very good procedures)
- 2021-05-09 15:58:35下载
- 积分:1
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BPSK调制仿真
bpsk调制仿真,可直接用
1、数字调制方法
数字调制就是把数字基带信号的频谱搬移到高频处,形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控(ASK)、频移键控(FSK)、绝对相移键控(PSK)、相对(差分)相移键控(DPSK)。在接收端可以采用想干解调或非相干解调还原数字基带信号。
数字信号的传输方式分为基带传输和带通传输。然而,实际中的大多数信道(如)无线信道具有丰富的低频分量。为了使数字信号在带通信道中传输,必须用数字基带信号对载波进行调制,以使信号与信道的特性相匹配。(1, digital modulation method
Digital modulation is the transfer of the spectrum of a digital baseband signal to a high frequency to form a bandpass signal suitable for transmission in the channel. The basic digital modulation methods are amplitude keying (ASK), frequency shift keying (FSK), absolute phase shift keying (PSK), and relative (differential) phase shift keying (DPSK). At the receiving end, the digital baseband signal can be restored by using dry demodulation or non-coherent demodulation.
Digital signal transmission methods are divided into baseband transmission and bandpass transmission. However, most channels in practice, such as wireless channels, have rich low frequency components. In order for a digital signal to be transmitted in a band channel, the carrier must be modulated with a digital baseband signal to match the signal to the characteristics of the channel.)
- 2019-05-28 10:46:01下载
- 积分:1
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TCM-16QAM
网格编码的16QAM仿真,验证网格编码的增益和误码(grid coding 16QAM simulation, verification grid coding gain and the error)
- 2021-03-05 10:09:31下载
- 积分:1
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ofdm
ofdm源程序。正交频分复用(OFDM) 的源代码。(OFDM source program. The source code of the orthogonal frequency division multiplexing (OFDM).)
- 2018-06-26 22:13:08下载
- 积分:1
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qpskAWGNaRayleigh
在高斯白噪声信道和莱斯信道下调制方式为qpsk的基本通信系统的误码率仿真 (In the Gaussian white noise channel and Rice channel qpsk modulation method is the basic communication system BER simulation)
- 2013-08-19 23:17:25下载
- 积分:1
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src
103转modbus协议C程序,支持多个485端口并能够配置(103 turn modbus protocol C program, more than 485 ports and supports the ability to configure)
- 2013-12-19 15:15:07下载
- 积分:1
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mimo2-
这个源代码是对MIMO系统的仿真,包括对MIMO信道的模拟以及不同的MIMO配置下,容量的特点。(This source code is a MIMO system simulation, including the simulation of the MIMO channel and different MIMO configuration, capacity characteristics.)
- 2014-05-30 09:51:02下载
- 积分:1
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word文档对球形译码的理论原理和仿真code
word文档对球形译码的理论原理和仿真结果进行了分析
1.sphereandML是主程序,性能接近最大似然ML检测,调用了spheredecode和spheredecodeinf两个子程序;
2.main_spheretoML是主程序,性能达到最大似然NL检测,调用了spheredecodetoML和spheredecodeinftoML两个子程序。(word document on the theory of spherical decoding theory and simulation results are analyzed 1.sphereandML are the main program, performance close to the maximum likelihood ML detection, call the spheredecode and two spheredecodeinf subprogram 2.main_spheretoML are the main program, to achieve maximum performance Ran Detect NL, call a subroutine spheredecodetoML and two spheredecodeinftoML.)
- 2021-03-31 17:59:08下载
- 积分:1
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p200602-701
huong dan lap trinh bang labview
- 2010-11-14 13:00:48下载
- 积分:1