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C++面向对象编程
这几章PPT讲述了C++面向对象编程思想的基本知识，最后用VC++举了一个例子(PPT these chapters on the basic knowledge of C ++ object-oriented programming ideas, and finally VC + cited an example)
- 2017-12-20 18:49:48下载
- 积分：1
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卫星通信中数字调相信号调制方式识别方法研究
针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)
- 2020-06-21 09:20:02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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Wireless-collaborative-network
无线协作网络中存在干扰时的中继选择协议
无线协作网络中存在干扰时的中继选择协议(Wireless collaborative network exists in the relay selection protocol interference)
- 2011-04-26 23:15:59下载
- 积分：1
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smart-antenna
智能天线波束赋形算法研究,对天线中的波束形成算法分析的非常深入。(Smart antenna beamforming algorithm, in the antenna beam to form a very in-depth analysis of the algorithm.)
- 2012-05-17 09:21:30下载
- 积分：1
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802.16标准
说明： 802.16E的协议文档，完整版本。其中包括3个版本。(802.16E protocol document, full version.)
- 2020-06-19 02:40:01下载
- 积分：1
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multirate-signal-communication_part1
通信系统中的多采样率信号处理，西安交通大学出版社，原文：弗雷德里克.J.哈里斯 等编著 （第一部分）(Communication system multirate signal processing, Xi an Jiaotong University Press, Original: Frederick. J. Harris, eds (Part I))
- 2011-05-17 08:44:10下载
- 积分：1
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[20]network-coding-an-instant-primer
network coding research paper helps to understand wireless network coding implementation
- 2012-01-21 12:51:58下载
- 积分：1
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standard-Statute-of-FT3
南自提供---标准FT3通讯规约格式,详细提供了他的格式(standard Statute of FT3)
- 2012-05-05 16:31:48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
