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An 8-QAM communications channel simulation in Simulink, constructed from a 16-QAM model and using an I,Q correlation receiver.
QAM (quadrature amplitude modulation) is a method of combining two amplitude-modulated (AM) signals into a single chan
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推论信道相关函数及相关谱的闭式表达式，分析影响ＭＩＭＯ信道空间、时间相关性的几个因素。-Analysis the factors affectiong the channel correlation,such as sapce inter-elements of transmitter or receiver,mean angle of arrive,ect.
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在3.49-3.51GHZ频段内的典型中国城市环境下，地面信号衰落仍服从经典的指数对数分布。在中度误差（σx =10.291）下，路损指数在3.1-3.7之间。半径2公里的小区内，RMS时延在3-4微秒之间；典型的办公室环境中，存在直达径时RMS时延小于0.1微秒。在城市环境中，多径现象很明显，主要由高层建筑物引起，并以簇的方式存在。在城市中低速移动条件下（接收机移动速度小于100 Km/h）某一强径的生存时间通常超过10分钟，但相对到达时间会发生滑动。单一小区内的传播环境具有一定相关性，如果存
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对于MIMO无线信道建模和仿真测试中遇到的一些常见问题予以了详细解答，其中详细介绍了空间相关性的那部分。-MIMO wireless channel modeling and simulation for the test to be some common problems encountered in the detailed answers, which details the spatial correlation part.
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内容包括：多天线信道和相关，相关模型，簇模型，信道探测，实验验证-Include: multi-antenna channel and the correlation model, cluster model, channel detection, experimental verification
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This report discusses the analys of Channel gain matrix to extract all channel informations like frequency reponse, impulse response, power delay profile, correlation bandwidth ets along with the matlab code
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运用相关矩阵法，通过计算2 根天线之间的相关系数、多输入多输出(MIMO)的相关矩阵，得到MIMO 信道系数矩阵，在其中加
入智能天线(SA)的导向向量和赋形向量，得到MIMO/SA 矩阵，由此实现对MIMO/SA 多天线空时信道的建模。-Use of the correlation matrix method, the multi-input multi-output (MIMO), correlation matrix, obtained by calculating the corre
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运用相关矩阵法，通过计算2 根天线之间的相关系数、多输入多输出(MIMO)的相关矩阵，得到MIMO 信道系数矩阵，在其中加
入智能天线(SA)的导向向量和赋形向量，得到MIMO/SA 矩阵，由此实现对MIMO/SA 多天线空时信道的建模。-Use of the correlation matrix method, the multi-input multi-output (MIMO), correlation matrix, obtained by calculating the corre
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PN-Chirp codes based on Multi-Correlation
Receiver in a bandlimited channel
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针对ＴＤ－ＬＴＥ ＰＲＡＣＨ信道信号ＥＶＭ测量实现复杂、实时性差、测量精度不高的问题，提出一种基于随机接入信号相关性、频偏估计、相位估计以及硬件相偏校准的ＥＶＭ求解算法，可以快速准确地进行ＥＶＭ测量。通过对比和仿真，验证了该实现方案的高效性和可行性。该算法已在ＴＤ－ＬＴＥ射频一致性测试仪表中得到应用-Implementation for TD-LTE PRACH channel signal EVM measurement of complex, real-time differential m
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这里有几篇有关doppler frequency offset估计问题的相关文献，主要采用的是信道响应法，自相关法，循环前缀法来估计多普勒频移的。-
Here are a few questions about the doppler frequency offset estimate of the relevant literature, is mainly used in the channel response, self-correlation method, cyclic pref
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OFDM is a multi-carrier transmission technique. It converts the frequency selective fading channel into a collection of parallel flat fading sub-channels which simplifies the structure of a receiver. OFDM has been widely used in communication system
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his code is assume sum up of total correlation of transmitter and receiver.
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：LTE(Long Term Evolution，长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)来完成，搜
索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而，若接收信号 1IDN 2IDN
中存在整数倍频偏，则由于时域的相位旋转，主
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Abstract—Diagonal Bell Laboratories Layered Space-Time (DBLAST)
structure offers a low complexity solution to realize the
attractive capacity of Multiple-input and multiple-output (MIMO)
systems. In this paper, we apply D-BLAST in orthogonal fr
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ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，单径或多径瑞利衰落信道仿真，包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Single path or multipath Rayleigh fading channel simulation, Including Deng s correlation, ab
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