Description: GSM 目前还是现在主要应用的移动系统，2G的演进也是目前平稳向三代过度的重要途径，MUROS，EDGE等都是现在技术演进的关键技术，本代码给出了平台搭建中TCH信道编解码技术，希望对你有所帮助。-GSM is still the main application is mobile systems, 2G is the steady evolution over the three generations of an important way, MUROS, EDGE technology are now the key to the evolution of technology, the code structures are given a platform in the TCH channel codec technology, want to help you. Platform: |
Size: 8192 |
Author:倪吉庆 |
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Description: 该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。
这包括最新型的衰落信道，误码率计算，并改善控制回路动态。-This model implements a generic OFDM TX and RX, which is not tied to any particular industry standard. The objective of this model is to develop and explore a continuous (not “bursty”) carrier and timing tracking synchronization scheme. The techniques incorporated can then be extended and modified to suite specific communications standards. The model uses an “acquisition” technique that exploits the correlation properties of the cyclic prefix to get a rough estimate of the frame boundary before attempting to accomplish the fine tracking algorithms. The model implements a 64 carrier OFDM waveform with a 16 point cyclic prefix. The OFDM symbol has 16 pilots, 3 guard tones (0 amplitude at band edge) and uses 4 QAM for the 45 remaining data streams.
This latest model includes a fading channel, BER computation, and improved control loop dynamics.
Platform: |
Size: 293888 |
Author:zaaa |
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Description: this a matlab file channel rate who is maked by me.this is used in gsm,gprs,edge traffic simulation.-this is a matlab file channel rate who is maked by me.this is used in gsm,gprs,edge traffic simulation. Platform: |
Size: 16384 |
Author:adi |
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Description: 本书是“移动通信前沿技术系列”之一，全书共分18个章节，主要对协作通信及网络知识作了介绍，具体内容包括空时分集和编码、空时频分集与空时频编码、中继信道及协议、单中继协作通信、多节点协作通信等。全书内容分为三部分，第一部分回顾传统的MIMO系统，介绍空间、时间、频率分集的概念。第二部分主要考虑协作通信物理层的关键问题，并对其提出了行之有效的解决方案，比如针对协作通信的分布式特点，提出分布式空时(频)码；针对协作通信的频谱效率问题，提出了新颖和有效的协作方案。第三部分介绍协作通信对物理层之上的MAC层、网络层及应用层产生的影响，内容涉及如何协作路由，如何通过协作使网络覆盖范围增大，如何延长网络寿命等。-This book is one of the "cutting edge mobile communication technology series". The book is divided into 18 chapters, mainly on cooperative communications and network knowledge and specific content including the empty hours of collection and coding, space-time-frequency diversity and space-time frequency coding, relay channel and protocols, single-relay cooperative communication, multi-node cooperative communications. Platform: |
Size: 4773888 |
Author:郑永钊 |
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Description: 此文档包括图像处理的一些基本操作：图像的多通道显示，图像的取反、翻转，图像滤波，简单的边缘操作，读取文件夹下的连续图像。-This document includes some basic operations of image processing, image of multi-channel, according to the image of the invert, flip, image filtering, edge of the simple operation, the continuous image read folder. Platform: |
Size: 2048 |
Author:宋宋 |
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Description: 本代码提供了两种图像去雾方法，一个是传统的利用暗通道进行去雾，但其存在较强的白边效应；增强法结合了统计特性与暗通道很好的解决了白边问题。(This code provides two image defogging methods, one is the traditional use of dark channel for defogging, but it has a strong white edge effect; the enhancement method combines statistical characteristics with dark channel to solve the white edge problem.) Platform: |
Size: 3426304 |
Author:SkyeLee |
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