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introductionToTelephonesAndTelephoneSystems
Provides telephone system managers, telecommunications sales professionals, and students with nontechnical, easy-to-understand explanations of the major aspects of today s telecommunications systems. DLC: Telephone.
- 2012-02-08 16:47:31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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HCF-Spec151-(Common-Practise-Command-Specificatio
HART Communication Foundation - Common Practise Command Specification
- 2020-11-20 14:39:36下载
- 积分：1
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Spread-spectrum
This document describes about the digital modulation techniques especially about spread spectrum.
- 2012-07-06 15:46:04下载
- 积分：1
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2
说明： 本文比较了宽带传输方案中SC_FDE系统与OFDM系统的性能(This article compares the broadband transmission program SC_FDE system and OFDM system performance)
- 2008-07-31 15:53:16下载
- 积分：1
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HCF-Spec190-(Block-Data-Transfer-Specification)
HART Communication Foundation - Block Data Transfer Specification
- 2020-11-20 14:49:36下载
- 积分：1
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communication
一份红外通讯的编码设计,已经经过实验，支持一对多。(Encoding of an infrared communication design, and after the experiment, to support one to many.)
- 2012-04-11 11:42:38下载
- 积分：1
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PDToolbox_matlab-master
说明： 与量子博弈相关演化博弈相关，其中也有复制动态方程的内容(Ternary phase diagram correlation)
- 2019-11-06 10:06:54下载
- 积分：1
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MIMO-channel-and-simulation-testing
对于MIMO无线信道建模和仿真测试中遇到的一些常见问题予以了详细解答，其中详细介绍了空间相关性的那部分。(MIMO wireless channel modeling and simulation for the test to be some common problems encountered in the detailed answers, which details the spatial correlation part.)
- 2021-04-17 14:48:52下载
- 积分：1
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Carrier_Delay_Syn
说明： 给程序给出了功率放大器预失真过程中的时延同步问题。(This codes provides the time delay synchronization in the process of power amplifier predistortion.)
- 2009-07-23 08:11:09下载
- 积分：1
