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摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用
OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受到的由于多
径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和
基本原理，然后在计算机上用M atlal〕对其性能进行了仿真，仿真中将OFDM与传统的单载波
调制方式—i1，交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较，最后分析了一者的仿真结果.
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阵列天线抗干扰 圆阵等高线，波束方向及三位角度信噪图-Array antenna interference contours, angle of beam direction and three noise graph
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波束形成的几种常用准则，SNR，MSE,LCMV准则。信号+干扰+噪声环境。在干扰方向形成零陷。-Several commonly used criteria of beamforming, SNR, MSE, Suppression for LCMV guidelines. Signal+ interference+ noise environments. Formed in the direction of the interference nulling.
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初学lcmv有用，可形成方向图，在干扰方向产生零陷，对期望信号增益效果-Beginner lcmv useful, can form a pattern, direction of the interference nulling, the effect of the desired signal gain
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使用样本协方差矩阵求逆方法仿真的波束图。使用的是均匀线列阵，信号方向为10度，有噪声，没有干扰。-Using the sample covariance matrix inversion method for the simulation beam pattern. Using a uniform linear array, the signal direction of 10 degrees, there is noise, no interference.
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根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。-According
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INTERFERENCE LOCATOR FOR EGSM AND UMTS FREQUENCY BANDS
matlab function
Diploma thesis describes direction finding principles for passive localization of emitting source. Direction finding system with one rotating antenna was chosen with tr
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最优波束形成。最优波束形成器能在干扰方向形成深的零陷。-Optimal beamforming. Optimal beamformer is formed in the depth direction of the interference nulling.
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阵列信号处理算法中的LCMV算法，仿真场景：8元均匀线性阵列，阵元间距为1/2波长，干扰入射方向为45度，干噪比为40dB。附报告、源程序、仿真截图，内容详尽，希望对您学习有所帮助。-Array signal processing algorithm LCMV algorithm simulation scenarios: 9 element uniform linear array, the array element spacing is 1/2 wavelength, the interf
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利用matlab仿真雷达直射波与地面反射波干涉的雷达方向图。（仰角的大小对雷达作用距离的大小的影响）-Using matlab simulation radar direct wave direction of reflection wave interference with the ground radar chart. (the size of the size of the elevation of the radar range)
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mvdr算法是最小方差无畸变响应波束形成器，它的原理来自是使非期望波达方向的任何干扰贡献的功率最小，但又能保持观测方向的信号功率不变。-mvdr algorithm is the minimum variance beamformer response distortion, its principle is that any interference from the direction of arrival of the undesired contributions to a minimu
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它是提高的到达方向（DOA）估计精度的紧迫任务。解决时间差的DOA估计问题是干扰和噪声的敏感性，本文提出了一种新的多个源的DOA基于multiset的典型相关分析估计算法（MCCA）。-It is to improve the direction of arrival (DOA) estimation accuracy urgent task. DOA estimation problem to solve is the time difference between the sensitivi
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一8个阵元的均匀线阵，假设一功率为1的单频信号，假设信号从10度方向入射到基阵。不考虑噪声和其他干扰信号-An 8 element array ULA, assuming a power of single-frequency signal 1, assuming 10 degrees from the direction of the incident signal to the base matrix. Without considering noise and other interfer
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resented in this paper. Based on the measured
radar cross section (RCS) of interested targets and
the coverage diagrams of the different radars in a
radar network, the approach can be used to solve
the problem of how optimally to locate the r
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In this paper, we address a new unexplored problem
- what are the optimal patterns to achieve connected coverage in
wireless networks with directional antennas. As their name implies,
directional antennas can focus their transmission energy in
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智能天线算法，阵列天线波束成形，增益对准有用信号方向，抑制干扰信号-Smart antenna matlab algorithm, linear array antenna beam forming, the alignment direction of the useful signal, interference suppression direction
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本代码是包含MMSE经典算法，修正型MUSIC算法，LCMV经典算法，MSNR经典算法。条件是在阵列采用8阵元的均匀线阵，阵元间距为半波长，期望信号的信噪比为10dB，方向为0度，干扰号的干噪比为20dB，方向为25度，并且期望信号和干扰信号间是不相干的，快拍数为512。-This code is contained MMSE classical algorithm, modified type MUSIC algorithm, LCMV classical algorithm, MSNR cl
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music算法条件是在阵列采用8阵元的均匀线阵，阵元间距为半波长，期望信号的信噪比为10dB，方向为0度，干扰号的干噪比为20dB，方向为25度，并且期望信号和干扰信号间是不相干的，快拍数为512。-With the proviso that the array 8 array element uniform linear array, the array element spacing of a half wavelength, the desired signal to noise rati
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In this paper, a line detection algorithm, which is based on direction filter and regional growth, is proposed for line
detection problem in a specific angle. Our algorithm is better than the state-of-the-art algorithm in the detection of the
spe
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調適性訊號處理
考慮應用於自適應最小方差無失真響應（MDVR）波束成形器的LMS算法由五個均勻間隔的傳感器的線性陣列組成。 陣列的相鄰元件之間的間隔d等於接收波長λ的一半。 波束形成器在由兩個分量組成的環境中操作：沿著感興趣的方向撞擊陣列的目標信號和來自
未知方向。 假設這兩個分量源自獨立的源，並且接收的信號在每個傳感器的輸出處包括加性白高斯噪聲。-ASP
Consider the LMS algorithm applied to an adaptive minimum
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