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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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KSZ9021GQ
MICREL GIGABIT PHY KSZ9021GQ(I).pdf
- 2009-05-08 12:35:52下载
- 积分：1
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OReillyGoogleHacks
O Reilly Google Hackes is the most wanted book for SEO and SEF optmizations in the world. This is the full version in .pdf format
- 2010-02-15 08:49:53下载
- 积分：1
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n428
GSM reading book in the would
- 2018-01-11 20:53:23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
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CCSDS_LDPC
CCSDS推荐的LDPC编码方案，一系列参考标准，很好哦！(CCSDS recommended LDPC coding scheme, a series of reference standards, very good!)
- 2020-06-15 23:00:02下载
- 积分：1
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EMD
基于EMD分解的去噪算法以及HHT变换的各种用途(EMD decomposition based on denoising algorithm and HHT transform for a variety of purposes)
- 2021-04-13 22:28:55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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IEC103
关好电力规约IEC103的编程流程图.()
- 2007-09-19 17:34:02下载
- 积分：1
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CD4067B
这是一个CD4067B的技术资料，希望对大家有帮助。(This is a CD4067B technical information, we hope to help.)
- 2012-03-10 13:40:05下载
- 积分：1
