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Description: 功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。-Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe
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Size: 1926 |
Author: 吴胜 |
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Description: 1． 利用自相关函数法和周期图法实现随机信号的功率谱估计。
2． 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。
-1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of autocorrelation sequence, the signal to noise ratio, window function, the average frequency of the spectrum estimation resolution, stability, width and the main valve Sidelobe effects.
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Size: 6072 |
Author: 开心 |
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Description: 广义旁瓣抵消器（GSC）是麦克风阵列语音增强中被广泛采用的一种自适应波束形成算法-generalized sidelobe canceller (GSC) is the microphone array speech enhancement which has been widely used in an adaptive beamforming Algorithm
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Size: 1058 |
Author: 王晓荣 |
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Description: calculation of the autocorrelation peak sidelobe levels and corsscorrelation. CE sequence, frank autocorrelation, P4 sequence,
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Size: 2035353 |
Author: wei p |
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Description: 功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。-Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe
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Size: 2048 |
Author: |
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Description: 1． 利用自相关函数法和周期图法实现随机信号的功率谱估计。
2． 观察数据长度、自相关序列长度、信噪比、窗函数、平均次数等对谱估计的分辨率、稳定性、主瓣宽度和旁瓣效应的影响。
-1. The use of auto-correlation function method and cycle map Method random signal power spectrum estimation. 2. Observation data length, the length of autocorrelation sequence, the signal to noise ratio, window function, the average frequency of the spectrum estimation resolution, stability, width and the main valve Sidelobe effects.
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Size: 6144 |
Author: 开心 |
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Description: 广义旁瓣抵消器（GSC）是麦克风阵列语音增强中被广泛采用的一种自适应波束形成算法-generalized sidelobe canceller (GSC) is the microphone array speech enhancement which has been widely used in an adaptive beamforming Algorithm
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Size: 1024 |
Author: 王晓荣 |
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Description: calculation of the autocorrelation peak sidelobe levels and corsscorrelation. CE sequence, frank autocorrelation, P4 sequence,
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Size: 2034688 |
Author: wei p |
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Description: 在抗干扰算法中，对抗干扰权加Chebyshev窗，以降低副瓣电平，使方向图更好-In the anti-jamming algorithm, Chebyshev window on the right and interference to reduce the sidelobe level, so that pattern better
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Size: 1024 |
Author: 张萌 |
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Description: 旁瓣相消Sidelobe cancellation，抑制杂波，尤其在杂波较信号较强的情况下-Sidelobe cancellation Sidelobe cancellation, clutter suppression, especially in the strong clutter signal where more
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Size: 1024 |
Author: 包永邦 |
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Description: 改程序实现了广义旁瓣对消器的仿真，广义旁瓣对消器在阵列信号处理和多用户检测中有重要的应用。-Reform program to achieve a generalized sidelobe canceller in the simulation, generalized sidelobe canceller array signal processing and multi-user detection has important applications.
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Size: 1024 |
Author: tiana |
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Description: 基于PSO的阵列方向图优化算话，通过优化单元相位和单元间距综合方向图旁瓣电平和主瓣宽度等-PSO-based optimization of the array pattern calculation, then, by optimizing the cell phase and cell spacing pattern integrated sidelobe level and mainlobe width
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Size: 2048 |
Author: tiandaniu |
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Description: 多波束天线增益chebychev展开 -45db旁瓣水平-Expand multi-beam antenna gain chebychev sidelobe level of-45db
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Size: 2048 |
Author: xufei |
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Description: 二相码旁瓣抑制和失配滤波方面的资料 感觉写的很好 老外写的 感觉很好 -biphase-code sidelobe supression and mismatch
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Size: 338944 |
Author: 陈诚 |
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Description: 基于对标准遗传算法中收敛依赖于初始群体选择的困难所作的分析,提出交替使用两种遗传繁殖操作
产生后代群体以摆脱收敛对初始群体选择的依赖. 对于超低副瓣线阵天线的方向图综合问题,建立了改进的遗传算法
优化模型.计算实例说明改进后的遗传算法其收敛不依赖于初始群体的选择,具有实际应用前景.
-Difficulties by the analysis of convergence depends on the initial group selected based on the standard genetic algorithm, the proposed alternate use of two genetic breeding operations produce offspring groups to get rid of the dependence of convergence on the initial population choice for ultra-low sidelobe linear array antenna pattern, the establishment of a genetic algorithm optimization model calculation examples of the improved genetic algorithm convergence does not depend on the choice of the initial population, with a practical prospect
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Size: 124928 |
Author: 侯杰 |
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Description: 对于相位编码信号的脉压旁瓣抑制。包括巴克码，m序列，MAC码等。-For phase encoding signal pulse pressure sidelobe suppression. Barker code, m sequence, MAC code.
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Size: 3167232 |
Author: 石志敏 |
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Description: When we feed a reflector with a narrow beam feed antenna, the narrow beam will under-illuminate the reflector causing reduce the amplitude taper efficiency while decreasing the feed power spilled past the rim of the reflector. However, the feed sidelobe illumination of the reflector will decrease phase error efficiency because the first sidelobe is 180° out of phase with respect to the main feed beam. The following analysis uses aperture theory on a circularly symmetric reflector fed by a feed with circular symmetry.
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Size: 3830784 |
Author: chowoch |
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Description: 阵列信号处理中自适应波束优化准则之一ASC旁瓣相消 MSE准则-Array Signal Processing ASC adaptive beam sidelobe canceller MSE criterion of optimization criteria
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Size: 102400 |
Author: 王柯 |
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Description: 基于最小均方差（MSE）的ASC 旁瓣对消波束成形算法的MATLAB实现-MATLAB-based minimum mean squared error (MSE) of ASC sidelobe cancellation algorithm to achieve beamforming
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Size: 1024 |
Author: name |
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Description: 阵列天线自适应旁瓣对消算法的研究 基于FPGA-Adaptive array antenna sidelobe cancellation algorithm in FPGA-based research
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Size: 87040 |
Author: CZZ |
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