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基于分数阶傅里叶变换的线性调频脉冲时延估计特性分析 被引量：19

Performance Analysis of Time Delay Estimation for Linear Frequency-modulated Pulse Based on Fractional Fourier Transform
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摘要 以线性调频脉冲压缩的时域特性为参照,分析了基于分数阶傅里叶变换的LFM脉冲时延估计的分数阶傅里叶域特性,并对比了两者在数字信号处理上的差异。可以发现两者在输出信噪比、脉宽压缩比、峰值振幅比的特性基本一致,而在数字实现上,后者精度往往更高,所需数据率可以更低,因此,具有更为广阔的应用前景。 The time delay estimation for linear frequency-modulated（LFM） pulse based on the fractional Fourier transform was analyzed in the fractional Fourier domain,taken the time domain performance of linear frequency-modulated pulse compression as reference.Also,the difference between these two methods was discussed in digital signal processing.It is found that they have almost the same output signal to noise ratio,pulse-width compression ratio and peak amplitude ratio.Furthermore,the latter has higher precision in the time delay estimation in digital implementation,needs less data rate,and has more potential.
作者 邓兵 王旭 陶然 刘贤忠
机构地区 海军航空工程学院电子信息工程系 北京理工大学电子工程系
出处 《兵工学报》 EI CAS CSCD 北大核心 2012年第6期764-768,共5页 Acta Armamentarii
基金 国家自然科学基金项目(60902054) 中国博士后科学基金项目(201003758 20090460114)
关键词 信息处理技术 时延估计 线性调频脉冲 分数阶傅里叶变换 information processing time delay estimation linear frequency-modulated pulse fractional Fourier transform
分类号 TN911.7 [电子电信—通信与信息系统] TN957.51 [电子电信—信号与信息处理]
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参考文献14

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二级参考文献13

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共引文献42

同被引文献115

引证文献19

二级引证文献80

兵工学报
2012年 第6期

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