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SymbolFotARCGIS
- 符号标准化既是组织数据生产的重要手段，又是科学管理数据的重要组成部分。建立标准的符号体系， 对于实现数据的规范管理和社会化信息共享服务具有十分重要的意义。 福建省国土资源信息中心于 2003年 1月着手基于MAPGIS 地理信息系统的部分标准符号库建设，经过 一年多的努力，克服了技术上的种种困难，至目前为止已制作完成适用于土地利用现状、土地利用规划， 矿产资源规划及城镇地籍等数据库建设的符号库，共计约 2400 多个符号。此项目开展初期就得到国
dqgc
- 电气工程图形符号，是我在网上搜到的，整理成Word格式，种类比较全面。-Electrical engineering graphic symbol, is my online search to the, organize them into Word format, type of more comprehensive.
Symbolrateestimation
- symbol rate estimation of linearity modulation signals
VB
- Microsoft Visual Basic(简称VB)是在Windows操作平台下设计应用程序的最速度、最简捷的工具之一。不论是初学者还是专业开发人员，VB都为他们提供了一整套的工具，可以轻松方便的开发应用程序。因此，VB一直被作为大多数电脑初学者的首选入门编程语言。 - Basic is actually an abbreviation of the phrase this phrase is Beginners all-purpose symbolic instruction code,
QAM64_20_5_rcosine_prbs_4096
- this a QAM64 captured signal for those who wants to check their algorithm for modulation classification and symbol rate estimation symbol rate used 1Mbps fs=20 or 40 MSPs and fc=5 MSPS-this is a QAM64 captured signal for those who wants to check thei
CMMB
- 为了减少无线信道中存在的多径和频偏对中国移动多媒体广播(CMMB)系统传输信号同步的影响，本文结合CMMB标准协议规定的具体帧结构，分析了符号同步对系统的影响，讨论了传统最大似然(ML)算法的优缺点，并基于文献中的无数据辅助算法，提出了一种适合该系统并且复杂度较低的粗符号定时同步算法。仿真结果表明，在AWGN及多径信道环境下，新算法可以有效克服传统算法相关峰不明显的缺陷，其估计性能更好-In order to reduce the influence for synchronization of
OFDM-pilot-symbol
- 这是关于OFDM系统下的发展介绍，重点讲述了关于导频的使用，并且提出了一种相对合理的导频方法。-it is about the ofdm system
gold-science-introduce
- 黄金（Gold）即金，化学元素符号Au，是一种软的，金黄色的，抗腐蚀的贵金属。金是最稀有、最珍贵的金属之一。-Gold (Gold), the gold, the chemical element symbol Au, is a soft, golden, precious metal anti-corrosion. Gold is one of the rarest, most precious metal.
04470099.rar
- A semi blind technique for estimating the carrier frequency offset in OFDM communication systems is presented in this paper. The fractional and integer frequency offsets are esti-mated by employing a few null subcarriers in the rst OFDM sy
biaogao-dayin
- BG是标注标高 三角符号+高程， PLO是批量打印(使用R14)-BG BB marked elevation the triangular symbol+ elevation, PLO PIO batch print (using R14)
gardnertimingdetector
- This paper presents the simulation performance of the all-digital symbol timing recovery using the Gardner Timing Error Detector over π/4-DQPSK modulation. The open loop statistics, the S-curve and the normalized timing error variance, were investiga
1111cnc03_2
- Multicarrier modulations attract a lot of attention ranging from wireline to wireless communications compared to single carrier modulation because of theirs capability to efficiently cope with frequency selective fading channels. Much of attentio
OFDM-SIMULATION-in-MATLAB
- In a single carrier communication system, the symbol period must be much greater than the delay time in order to avoid inter-symbol interference (ISI) [1].-In a single carrier communication system, the symbol period must be much greater than the dela
Symbol-description-to-integral-solution
- Ext rapolation operator of one2way wave field has great application in seismic migration imaging. According to their implement , these operators can be classified into three kinds : Kirchhoff integral method , implicit definite difference in spa
AAA
- In this letter, we propose a simple orthogonal frequency-division multiplexing (OFDM) scheme for an asynchronous cooperative system, where OFDM is implemented at the source node, and time-reversion and complex conjugation are implemented at the rel
1MIMOOFDMestimation
- MC-CDMA with SFBC In the next subsections, we describe the architecture of an SFBC MIMO MC-CDMA transmitter, and define the basic terms related to the PAPR of the involved signals. System model In an MC-CDMA system, a block of M information sym
07355304
- We present a novel beamforming technique for multi-user frequency-selective indoor channels called interference-nulling time-reversal (INTR). The beamformer is implemented with a pre-filter designed to minimize the interuser interference pres
wireless_1
- In this assignment, a report about Matlab functions of generating random numbers is prepared and then BPSK , QPSK and 8PSK symbols input sequence of bits are obtained. After that the expected value of generated symbols and the symbol energy are calcu