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rayleighnew
瑞利衰落信道,是一种无线电信号传播环境的统计模型。这种模型假设信号通过无线信道之后,其信号幅度是随机的,即“衰落”,并且其包络服从瑞利分布。这一信道模型能够描述由电离层和对流层反射的短波信道,以及建筑物密集的城市环境。(Rayleigh fading channels, the statistical model of a radio signal propagation environment. This model assumes that after the signal through the radio channel, the signal amplitude is random, ie, the " fading" and the envelope of the Rayleigh distribution. This channel model is able to describe the HF channel reflected by the ionosphere and troposphere, as well as building a dense urban environment.)
- 2012-12-02 14:39:21下载
- 积分:1
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VBCRC16
自己做的CRC16校验例子,输入16进制数据,数据之间用空格,得到校验字节(The CRC16 checksum own example, enter the hexadecimal data, with a space between the data check byte)
- 2012-10-12 08:45:27下载
- 积分:1
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Research-on-Optimal-Coverage-Problem-of-Wireless-
optimal coverage problem of wireless sensor network
- 2013-07-10 13:38:21下载
- 积分:1
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CMAequalization
QAM高阶调制 恒模盲均衡算法
CMA Equalization Algorithm(QAM CMA Equalization Algorithm)
- 2013-08-31 19:09:29下载
- 积分:1
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2008_5
在三条径的瑞利信道中,对于直接序列扩频:
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。
(2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真(自己编写代码S-Function方式),分析所设计方案的时间同步精度,画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步,请设计DS-CDMA一种具体的频率方法,用Simulink进行仿真(自己编写代码S-Function方式),画出比特信噪比与频率同步误差的关系曲线。
(err)
- 2020-12-23 10:29:06下载
- 积分:1
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QQ
这是一个实现CS的QQ,并带有链接数据库的功能,主要功能有注册,群聊,私聊等(This is a realization of C S of the QQ, and with a link to a database functions, the main function of registration, group chat, private chat, etc.)
- 2013-07-15 16:09:07下载
- 积分:1
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对cmw500测试仪器的程控及初始化操作
说明: 完成对cmw500测试仪器的程控及初始化操作(Novice is currently in the learning stage. CMW500 GSM non-signaling test program example, including initialization)
- 2020-07-22 01:18:44下载
- 积分:1
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5824991
系统分别对无线通信中的几种重要的多址接入协议进行了仿真,包括pure-ALOHA,slotted-ALOHA,CSMA以及(Several important multiple access protocols in wireless communication are simulated by the system, including pure-ALOHA, slotched-ALOHA, CSMA, and the like.)
- 2019-03-28 11:32:12下载
- 积分:1
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scource-number-detection
源信号数目的估计在阵列信号处理中有很广的研究了,这个源程序是基于新一代通信环境下的源信号数目估计,如mimo——ofdm(detection the number of source signals for MIMO_OFDM)
- 2011-11-23 10:24:37下载
- 积分:1
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Helical-antenna
螺旋天线的设计与制作 (Helical antenna design and production)
- 2013-10-13 10:30:58下载
- 积分:1