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35569_91417v00_Wimax
Specification for the WiMAX Standard
(包括如何用simulink实现,简单易懂)(Specification for the WiMAX Standard (including where What is the purpose of achieving Simulink and easily understood))
- 2007-05-10 02:33:17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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MIMO_detection
MIMO 系统中 信号检测算法的比较 zf mmse ML(Performance of zero-forcing detectors over
MIMO flat-correlated Ricean fading channels)
- 2021-04-26 19:58:45下载
- 积分:1
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WSN
无线传感器网络的matlab仿真程序,有详细的仿真模块和程序说明。(Wireless sensor networks matlab simulation program, contains a detailed description of the procedures of simulation modules and.)
- 2009-11-08 16:14:23下载
- 积分:1
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BlobTest
Blob Test extends SQLite Test Source Code for Andriod.
- 2013-11-11 23:00:34下载
- 积分:1
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Dnp_analysis
DNP3通讯报文解析工具,由于查看理解DNP通讯报文(DNP3 Communications Message Parsing Tool, Due to Viewing and Understanding DNP Communications Messages)
- 2020-06-17 09:00:02下载
- 积分:1
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MIMOSignalsAndSystemsMatlab
说明: This is the document about MIMO
- 2019-11-08 03:28:20下载
- 积分:1
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TOA和TODA
无线定位技术仿真模拟,加有高斯白噪声干扰,能精确到1米之内。(Wireless location technology simulation, plus Gauss white noise interference, can be accurate to 1 meters.)
- 2021-04-25 14:48:46下载
- 积分:1
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HuaWei_Design
华为内部程序设计培训文档。
值得学习一下。。。
- 2009-11-20 18:10:13下载
- 积分:1
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BERcurve_CV_soft2_QA
Computes BER v EbNo curve for convolutional encoding / soft decision
Viterbi decoding scheme assuming BPSK.
Brute force Monte Carlo approach is unsatisfactory (takes too long)
to find the BER curve.
The computation uses a quasi-analytic (QA) technique that relies on the
estimation (approximate one) of the information-bits Weight Enumerating
Function (WEF) using
A simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.(Computes BER v EbNo curve for convolutional encoding/soft decision Viterbi decoding scheme assuming BPSK. Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on theestimation (approximate one) of the information-bits Weight Enumerating Function (WEF) usingA simulation of the convolutional encoder. Once the WEF is estimated, the analytic formula for the BER is used.)
- 2008-01-05 08:41:21下载
- 积分:1