time_frequency

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)

LDPC Codes – a brief Tutorial Bernhard M.J. Leiner, Stud.ID.: 53418L bleiner@gmail.com April 8, 2005

本文研究了SMBus 规范，介绍了典型的基于片上系统（SoC）设计的知识产权核（IP）实现，采用自顶向下 (Top-down)的集成电路设计方法完成了设计，并架构了基于总线功能模型(BFM)的验证平台 完成功能仿真，顺利完成了逻辑综合和时序仿真。FPGA 验证和投片后测试均表明设计具有 良好的性能。(This paper studies the SMBus specification, based on the introduction of the typical system-on-chip (SoC) intellectual property core design (IP) implementation, using top-down (Top-down) of the integrated circuit design methods achieve a design and architecture based on the total Line functional model (BFM) achieve functional verification platform for simulation, successfully completed a logic synthesis and timing simulation. FPGA silicon validation and post-tests show that the design has good performance.)

（九宫问题）在一个３×３的九宫中有１－８这８个数及一个空格随机的摆放在其中的格子里，如图１－１所示。现在要求实现这个问题：将该九宫格调整为如图１－１右图所示的形式。调整的规则是：每次只能将与空格（上、下、或左、右）相邻的一个数字平移到空格中。试编程实现这一问题的求解。((Nine-palace issues) in a 3 × 3 of the Nine-palace are 1-8 this 8 random number and the placing of a space in which the cell house, as shown in Figure 1-1. Now required to achieve this issue: the squares adjustment for the right as shown in Figure 1-1 form. Adjustment of the rules: each can only be with the spaces (upper and lower, or left, right) adjacent to a digital flat space. Test Programming to solve this problem.)

以下为一般性带附件资料发贴选项： 【资料成文时间】：2005 【语言】：英文 【页数】：22×２ 【何人（公司）所著】：DirkW¨ubben 【文件格式】：pdf 【文件原名】：Channel Coding I Matlab solutions of the exercises (The following is a general information with an attachment Posted options: 【Data written Time】: 2005 【Language】: English 【Pages】: 22 × 2 【whom (company) book】: DirkW ¨ ubben】 【file formats: pdf Original】 【File: Channel Coding I Matlab solutions of the exercises)

Cognitive Radio - Securuty

A brief Introduction to Wireless Sensor network for Beginners.

采用Simulink 平台对OFDM 进行仿真，确定系统的参数，完成参数设置，构建了一个简单的OFDM通信系统。(Using Simulink platform to simulate OFDM, determine the parameters of the system, complete the parameter settings, and build a simple OFDM communication system.)

说明：  本文件是基于高斯正弦波行的宽带脉冲波形设计,保证了相对带宽大,衰减满足3db要求(this document is based on the Gaussian line broadband sinusoidal pulse waveform design, ensuring a relatively large bandwidth. attenuation meet the requirements Z)

performance evaluation of reactive and proactive protocols. the performance is evaluated with respect to throughput over TCP and UDP connections types