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NIST_Framework_Release_2-0_corr
Nist Conceptual model for smart grid communication.
- 2013-10-31 18:01:15下载
- 积分：1
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SPMS_deal
SPMS deal 模块，SPMS deal 模——(SPMS deal 模块)
- 2013-11-08 20:57:16下载
- 积分：1
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28181SPVMN-Use
GB28181安防监控标准SPVMN软件的安装和配置说明文件。(The Document of GB28181 Project SPVMN set)
- 2017-04-10 13:27:41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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IEC-61850标准(打印版）
说明： DL/T860系列文档完整版，IEC61850通讯模型(DL / T860 series document complete version, IEC61850 communication model)
- 2021-04-28 15:08:43下载
- 积分：1
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ex516
gardner位同步算法，实现数字通信系统中位同步(gardner bit synchronization algorithm to achieve bit synchronization in a digital communication system)
- 2017-04-13 19:53:32下载
- 积分：1
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GPS
本文作的工作是利用信号仿真器仿真GPS数字中频信号，并借助这些仿真信
号完成对GPS信号的捕获和跟踪性能的研究。(This article is for the use of GPS signal simulator simulation digital IF signal, and make use of these simulation signal completion of the GPS signal acquisition and tracking performance study.)
- 2008-05-07 11:28:04下载
- 积分：1
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xiandaitongxin
现代通信原理与技术课件，讲明通信原理，调制解调以及通信的过程。(Modern communication theory and technology courseware, made it clear that the process of communication theory, modulation and demodulation and communication)
- 2012-04-11 13:35:49下载
- 积分：1
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c03
该程序实现水声信道的模拟方法及性能分析，提出了一种信的水声信道模型(The program implements underwater acoustic channel simulation methods and performance analysis, presents a letter of underwater acoustic channel model)
- 2020-07-04 05:40:02下载
- 积分：1
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4
说明： ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2
种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本
思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列
的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods
。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency
ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits．
Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix—
based algorithm has less complexity and less precision。and that the training sequence—based algorithm
has better estimation performance at the cost of transmission efficiency．)
- 2010-05-18 18:34:44下载
- 积分：1
