基于分形特性改进的EMD目标检测算法

doi:10.11999/JEIT150731

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Abstract

In order to overcome the detection performance degradation of the existing detection method when the target and sea clutter is hard to distinguish, an improved target detection method based on mono fractal characteristics is proposed. Firstly, for getting the Intrinsic Mode Function (IMF) after reconstruction, the original signal is decomposed by using Empirical Mode Decomposition (EMD), then the spectrum of target bin and sea clutter bin after denoising is gained by using Fast Fourier Transform (FFT), Mono-Hurst exponents are calculated and the target is detected by nonparametric detector. The results show that, although target and sea clutter is hard to distinguish from frequency spectrum, but their Mono-Hurst exponents is different in scale-invariant interval, compared with original detection method in frequency domain, the proposed method can achieve good detection performance.

Key words： Target detections Empirical Mode Decomposition (EMD) Fractal theories Generalized sign Sea clutter

Received: 15 June 2015 Published: 25 March 2016

PACS:

TN957

Fund:

The National Natural Science Foundation of China (61501487, 61471382, 61401495, 61201445, 61179017), The Natural Science Foundation of Shandong Province (2015ZRA 06052), The Special Funds of Taishan Scholars Construction Engineering

Corresponding Authors: ZHANG Lin E-mail: zhanglin4402@163.com

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	ZHANG Lin
	LI Xiuyou
	LIU Ningbo
	GUAN Jian

Cite this article:

ZHANG Lin,LI Xiuyou,LIU Ningbo等. Improved EMD Target Detection Method Based on Mono Fractal Characteristics[J]. JEIT, 2016, 38(5): 1041-1046.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT150731 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I5/1041

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