syslevel_0109

pppoe常见故障分析,电信故障排除所需要的PPPOE知识(pppoe common fault analysis, telecommunications, troubleshooting knowledge required for PPPOE)

a document wich explain spectral null codes

已有的基于分块压缩感知的图像重构模型采用相同的测量矩阵以块 ×块的方式获取数据，解决了传统ＣＳ方法中测量矩阵所需存储量较大的问题，但由于采用分块重构，没有考虑 到图像的全局稀疏度，出现了大量的块效应。(Current image reconstruction models using block compressed sensing)

Analysis and Simulation Model of Physical Carrier Sensing in IEEE 802.11 Mesh Networks

In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame synchronization is an essential procedure for normal operation of the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation.

说明：  IEC 60870-5-101 通信规约英文版规范(IEC 60870-5-101-2003 Telecontrol equipment and systems Part 5-101 Transmission protocols)

相控阵雷达天线模型及仿真论文，非常好用，推荐(Phased array radar antenna model and simulation paper, very useful, recommended)

This includes how to protect the speaker using matlab functions.

turbo均衡的一种算法修改的MMSE算法对深刻理解TE很与帮助。(turbo balanced an algorithm modified MMSE algorithm is with a deep understanding of TE help.)

主要是基于mtlab的程序，MinkowskiMethod算法 ,matlab实现了五类灰色关联度模型的计算。( Mainly based on the mtlab procedures, MinkowskiMethod algorithm, matlab implements five gray correlation degree computing model.)