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XR-EE-RT_2009_003
无线hart开发实现与测试,包含所有功能的说明与测试(wireless hart)
- 2012-01-31 15:38:16下载
- 积分：1
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OWH001102-UMG89000-hardware-introduction-ISSUE1
Huawei UMG89000 hardware introduction ISSUE1.1
- 2011-05-03 22:23:59下载
- 积分：1
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passive-radar
无源探测定位方法研究很好的学习无源被动雷达 很高兴和大家交流(Good learning passive probe positioning method Passive radar is very happy and the exchange of)
- 2013-03-18 18:54:25下载
- 积分：1
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enet-at002_-en-p
EtherNet/IP Socket Interface(This publication describes the socket interface that you can use to program
MSG instructions to communicate between a Logix5000 controller via an
EtherNet/IP module and Ethernet devices that do not support the EtherNet/IP
application protocol, such as bar code scanners,RFID readers,or other standard
Ethernet devices.)
- 2018-06-30 16:01:49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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time_frequency
这是一篇现代通信原理课程的作业报告.题目为几种时频分析方法比较及应用.详细介绍了短时傅里叶变换、小波变换、魏格纳—威利分布和Cohen类时频分布这4种典型时频分析方法,并作了比较(This is a modern communication Principle operating report. Entitled Comparison of several time-frequency analysis and 应用. 详细 Jieshao the short time Fourier transform, wavelet transform, Wigner- Willie distribution and frequency distribution of Cohen Lei This four kinds of typical time-frequency analysis method, and compared)
- 2010-07-12 22:12:25下载
- 积分：1
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CHENGXU
说明： 实现图像游程编码的MATLAB程序，对二值图像压缩效果明显。(RLC)
- 2010-05-01 15:51:24下载
- 积分：1
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ATM_text
Pocket Guide for Asynchronous Transfer Mode and ATM Testing
- 2010-11-10 00:22:46下载
- 积分：1
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MerfrfrgePDFs_15
cooperative relay communication ieee
- 2009-02-14 18:56:48下载
- 积分：1
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ofdm
说明： orthogonal frequency demod
- 2019-03-05 05:04:44下载
- 积分：1
