Design of high-performance energy integrator detector for wideband radar

doi:10.21629/JSEE.2019.06.07

Journal of Systems Engineering and Electronics ›› 2019, Vol. 30 ›› Issue (6): 1110-1118.doi: 10.21629/JSEE.2019.06.07

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Design of high-performance energy integrator detector for wideband radar

Jiayun CHANG(), Xiongjun FU*(), Wen JIANG(), Min XIE()

School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

Received:2019-01-24 Online:2019-12-20 Published:2019-12-25
Contact: Xiongjun FU E-mail:824400828@qq.com;fuxiongjun@bit.edu.cn;jwen912@126.com;xiemin@bit.edu.cn
About author:CHANG Jiayun was born in 1989. She received her master degree from Beijing Institute of Technology (BIT), China, in 2016. Currently, she is pursuing her Ph.D. degree in the School of Information and Electronics, BIT. Her research interests include automatic target recognition and radar signal processing. E-mail: 824400828@qq.com|FU Xiongjun was born in 1978. He received his B.E. degree and Ph.D. degree from Beijing Institute of Technology (BIT), China, in 2000 and 2005 respectively. He is currently the vice dean of the School of Information and Electronics, BIT, and an associate professor and PhD supervisor with BIT. His current research interests include radar system, radar signal processing, waveform design, and automatic target recognition. E-mail: fuxiongjun@bit.edu.cn|JIANG Wen was born in 1991. He received his master degree from Zhengzhou University, China, in 2016. Currently, he is pursuing his Ph.D. degree in the School of Information and Electronics, Beijing Institute of Technology. His research interests include radar signal processing and radar signal sorting. E-mail: jwen912@126.com|XIE Min was born in 1976. He received his Ph.D. degree from Beijing Institute of Technology (BIT), China, in 2006. Currently, he is a lecturer of the School of Information and Electronics, BIT. His research focuses on high-speed real-time signal processing, radar signal processing, signal acquisition and storage. E-mail: xiemin@bit.edu.cn
Supported by:
the National Natural Science Foundation of China(61571043);the 111 Project of China(B14010);This work was supported by the National Natural Science Foundation of China (61571043) and the 111 Project of China (B14010)

Abstract

Abstract:

Target detection for wideband radar has recently received extensive attention. The classical energy integrating (EI) detector will always accumulate excess clutter or noise energy, which leads to unacceptable performance deterioration if the detection window is not selected properly. In this paper, an EI detector for the distributed targets in the Gaussian environment is proposed. First, at the stage of preparatory work, the target models are proposed, then, the problem formulation is introduced. Subsequently, in the aspect of optimizing the method of detection window search and the method of threshold setting, the detailed design stages of the proposed detector are provided. Furthermore, theoretical analyses show that the proposed detector is easy to hardware implementation, and it does not need the prior knowledge about the spatial distribution of the target scattering centers in practical radar detection application. Finally, the performance assessment conducted by Monte Carlo simulations verifies that the proposed detector outperforms the conventional detectors.

Key words: radar, detection, distributed target, integration detector

Jiayun CHANG, Xiongjun FU, Wen JIANG, Min XIE. Design of high-performance energy integrator detector for wideband radar[J]. Journal of Systems Engineering and Electronics, 2019, 30(6): 1110-1118.

Figures/Tables 7

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References 36

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Parameter		Value
Noise power/dBW	—	40
Radar parameters	Signal amplitude/V	1
	Bandwidth/MHz	500
	Pulse duration/${\rm{ \mathsf{ μ} }} {\rm s}$	10
	Carrier frequency/GHz	10
	Pulse repetition frequency/Hz	200
Target parameters	Initial range to radar/m	5 000
	Radial velocity/(m/s)	0
	Target reality radial length/m	30
	Scattering point parameters:
	Number	10
	Distribution location	0.01, 0.1, 0.15, 0.3, 0.31, 0.7, 0.71, 0.72, 0.9, 0.91
	Amplitude/V	20, 30, 30, 30, 20, 20, 20, 50, 40, 20
Tracking gate parameters	Width/${\rm{ \mathsf{ μ} }}{\rm s}$	30.2
	Starting time/${\rm{ \mathsf{ μ} }} {\rm s}$	28.33
	Ending time/${\rm{ \mathsf{ μ} }}{\rm s}$	58.53

Parameter	Value
Minimum length of searching window/m	20
Maximum length of searching window/m	40
Position stepper of sliding window	4
Length stepper of sliding window	2

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Design of high-performance energy integrator detector for wideband radar

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