利用离散长球面波函数的超谐波分辨率

IEEE International Conference on Radar Pub Date : 1990-05-07 DOI:10.1109/RADAR.1990.201118

A. Khenchaf, J. Saillard

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引用次数: 2

摘要

在谐波分析方法的基础上，采用离散球面波函数实现了非常高的光谱分辨率。对于被测信号的N个样本向量，经典的傅里叶变换判别能力为1/N，而在本文提出的方法中，对于相同数量的样本，以P作为FFT的维数，判别能力可达到2/P。对其他古典窗(矩形窗、汉明窗和曾氏窗)进行了进一步的比较研究。

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A hyper harmonic resolution by using the discrete prolate spheroidal wave functions

Based on the harmonic analysis method, discrete spheroidal wave functions are used to achieve a very high spectral resolution. For an N samples vector of the measured signal, the classical Fourier transform discrimination capability is 1/N, while in the method proposed, for the same number of samples, the discrimination capability might attain the value of 2/P, with P as the dimension of the FFT. Additional comparative study of other classical windows (rectangular, Hamming, and Tseng) is made.<>

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IEEE International Conference on Radar

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