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Eliminate-short-check-matrix-ring
对消去短环的LDPC码校验矩阵的构造进行分析，发表在通信技术上。(Eliminate short-check matrix ring construction of LDPC codes )
- 2011-12-04 21:30:55下载
- 积分：1
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一种基于高阶累积量的数字调相信号识别方法
对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)
- 2020-06-21 09:40:02下载
- 积分：1
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wrnvf
验证可用，MinkowskiMethod算法 ,计算一维光子晶体的透射特性和反射特性。( Verification is available, MinkowskiMethod algorithm, Calculated transmission characteristics and reflection characteristics of the one-dimensional photonic crystals.)
- 2017-04-17 21:59:08下载
- 积分：1
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yidong-
本文根据移动通信衰落信道的工作机理,
基于加性高斯白噪声信道( AWGNChannel) 、
落信道( RayleighFading Channel) 、莱斯衰落
icianFadingChannel) 的仿真模型, 并利用M
行了衰落信道的误比特率性能的仿真分析。(Based the working mechanism of the mobile communications fading channel,
Based on the additive white Gaussian noise channel (AWGNChannel),
The down channel (RayleighFading Channel), Rice fading
icianFadingChannel) simulation model, and the use of M
Line simulation analysis of the the fading channel bit error rate performance.)
- 2013-05-03 09:26:58下载
- 积分：1
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Consensus-and-Cooperation-
分布式一致性协议，很适合刚接触一致性的新手(The consistency of distributed agreement, it is very suitable for new to novices)
- 2021-03-10 15:39:26下载
- 积分：1
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Problems
Problems and their solutions
- 2012-12-02 14:52:30下载
- 积分：1
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mmu-meta1
Meta 1 MMU handling code.
- 2014-12-18 09:33:32下载
- 积分：1
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pro-report
SIGNAL DETECTION FOR SPECTRUM SENSING
Spectrum sensing is a critical functionality in cognitive radio communications as it must be performed before allowing unlicensed users to access a vacant licensed band. Energy detector is also known as radiometer and it is most common method of spectrum sensing because of its low computational and implementation complexities. The coherent detector, also referred to as a matched filter, can improve detection performance if the primary transmitted signal, s, is deterministic and known a priori.
- 2013-04-08 13:53:19下载
- 积分：1
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xws-security-3.0
xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)
- 2014-04-23 16:57:39下载
- 积分：1
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DPSK_PCM_TDM
利用matlab simulink产生两路模拟语音信号，经过pcm编码、时分复用、DPSK调制经过同一个信道单向传输到对应的接收端。常用的三个模块 simulink、通信模块、信号处理模块。包括课程设计报告。(Using matlab simulink produce two analog voice signals through the pcm encoding, time division multiplexing, DPSK modulation over the same one-way transmission channel to a corresponding receiver. The three modules used simulink, communication module, a signal processing module. Including curriculum design report.)
- 2021-03-22 20:39:16下载
- 积分：1
