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| 基于分数阶傅里叶变换的线性调频信号检测算法 | |
| 引用本文： | 邓异,梁燕,凌继平. 基于分数阶傅里叶变换的线性调频信号检测算法[J]. 舰船电子工程, 2011, 31(9): 43-46 |
| 作者姓名： | 邓异 梁燕 凌继平 |
| 作者单位： | 1. 91640部队,湛江,524064 2. 华德力集团（广东）电气有限公司,湛江,524022 |
| 摘 要： | 针对复杂噪声背景下线性调频信号检测问题，利用分数阶Fourier变换具有解除时频耦合和信号在分数阶Fourier域呈现能量谱的高度聚集的特性，得出一种基于分数阶Fourier变换的信号检测算法，并将算法用于高斯白噪声和色噪声背景中信号检测。仿真结果表明，该算法对高斯、非高斯色噪声中的线性调频信号检测均有良好的检测性能。 |
| 关 键 词： | 分数阶傅立叶变换 线性调频信号 信号检测 |
Linear Frequency-modulated Signal Detection Algorithm Based on Fractional Fourier Transform |
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| Deng Yi) Liang Yan) Ling Jiping),Zhanjiang ) Electric CO.,LTD),Zhanjiang ). Linear Frequency-modulated Signal Detection Algorithm Based on Fractional Fourier Transform[J]. Ship Electronic Engineering, 2011, 31(9): 43-46 | |
| Authors: | Deng Yi) Liang Yan) Ling Jiping) Zhanjiang ) Electric CO. LTD) Zhanjiang ) |
| Affiliation: | Deng Yi1) Liang Yan2) Ling Jiping1)(No.91640 Troops of PLA1),Zhanjiang 524064)(HOTOLI(Guang Dong) Electric CO.,LTD2),Zhanjiang 524022) |
| Abstract: | According to the problem of signal detection in complex background,an improved detection algorithm is presented based on fractional Fourier transform.New method makes use of the property of relieving time-frequency coupling and power spectrum accumulation strongly.Linear frequency-modulated(LMF) signal is detected in colored noises and white Gaussian noise,simulation result shows that the detection algorithm has good detection property. |
| Keywords: | fractional Fourier transform linear frequency-modulated signal signal detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |