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针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能 在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)
- 2011-09-05 15:20:54下载
- 积分：1
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bt_control
bluetooth control,
can control bluetooth for hci mode
- 2005-08-17 01:30:31下载
- 积分：1
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中兴捧月
说明： 信道估计的插值算法（中兴捧月）XXXXXXXXXXXX(Interpolation Algorithm for Channel Estimation (Zhongxing Holding Moon))
- 2019-04-18 16:41:38下载
- 积分：1
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IOT_Simulation_3_BasicModels
opnet 仿真，陈敏老师2015年新书 opnet物联网仿真(opnet Simulation)
- 2020-09-22 22:47:49下载
- 积分：1
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adaptive_filter
外辐射源雷达中直达波对消matlab程序，使用自适应滤波的算法(adaptive_filter algrithm)
- 2012-04-12 15:37:08下载
- 积分：1
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QMD
实现了QPSK的调制，使用了ise自带的dds的IP核(QPSK is modulated and the IP core of DDS is used in ise.)
- 2019-05-05 15:37:58下载
- 积分：1
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gai_LMS
变步长的LMS滤波器设计，一种新的变步长LMS自适应滤波算法(Design of variable step size LMS filter, a new variable step size LMS adaptive filtering algorithm
)
- 2021-01-26 10:58:37下载
- 积分：1
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Lfm的matlab实现方法
说明： LFM线性调频波的matlab实现方法，并附上几种常用算法。(The Matlab implementation method of LFM chirp is accompanied by several commonly used algorithms.)
- 2020-12-13 11:09:17下载
- 积分：1
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相参积累
雷达系统，基于matlab实现雷达信号的相参积累的简单代码(Radar system, based on MATLAB, is a simple code for coherent accumulation of radar signals.)
- 2021-03-25 19:29:13下载
- 积分：1
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Interpolation_Filter
插值滤波器，可以改变样值的抽样速率问题，比如把2倍抽样的样值转换为2.5倍抽样的样值。(Interpolation filter, can change the kind of questions the value of the sampling rate, such as 2 times the sample put the kind of value is converted to 2.5 times the sample value of the sample.)
- 2009-03-04 09:08:08下载
- 积分：1
