High Speed Maneuvering Target Detection Based on the Modified Keystone Transform

2017 ◽  
Author(s):  
Wentao Li ◽  
Wei Zhang ◽  
Zhichao Jiao
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Maneuvering Target ◽  
Keystone Transform

scholarly journals Generalized Dechirp-Keystone Transform for Radar High-Speed Maneuvering Target Detection and Localization

2021 ◽  
Vol 13 (17) ◽  
pp. 3367
Author(s):  
Jibin Zheng ◽  
Kangle Zhu ◽  
Zhiyong Niu ◽  
Hongwei Liu ◽  
Qing Huo Liu
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Computational Cost ◽  
Noise Performance ◽  
Maneuvering Target ◽  
Keystone Transform ◽  
Coherent Integration ◽  
Range Function ◽  
Long Time ◽  
Detection And Localization

The multivariate range function of the high-speed maneuvering target induces modulations on both the envelop and phase, i.e., the range cell migration (RCM) and Doppler frequency migration (DFM) which degrade the long-time coherent integration used for detection and localization. To solve this problem, many long-time coherent integration methods have been proposed. Based on mechanisms of typical methods, this paper names two signal processing modes, i.e., processing unification (PU) mode and processing separation (PS) mode, and presents their general forms. Thereafter, based on the principle of the PS mode, a novel long-time coherent integration method, known as the generalized dechirp-keystone transform (GDKT), is proposed for radar high-speed maneuvering target detection and localization. The computational cost, energy integration, peak-to-sidelobe level (PSL), resolution, and anti-noise performance of the GDKT are analyzed and compared with those of the maximum likelihood estimation (MLE) method and keystone transform-dechirp (KTD) method. With mathematical analyses and numerical simulations, we validate two main superiorities of the GDKT, including (1) the statistically optimal anti-noise performance, and (2) the low computational cost. The real radar data is also used to validate the GDKT. It is worthwhile noting that, based on closed analytical formulae of the MLE method, KTD method, and GDKT, several doubts in radar high-speed maneuvering target detection and localization are mathematically interpreted, such as the blind speed sidelobe (BSSL) and the relationship between the PU and PS modes.

High speed maneuvering target detection based on joint keystone transform and CP function

2014 ◽  
Author(s):  
Xiaolong Li ◽  
Guolong Cui ◽  
Lingjiang Kong ◽  
Wei Yi ◽  
Xiaobo Yang ◽  
...  
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Maneuvering Target ◽  
Keystone Transform

High-speed maneuvering target detection approach based on joint RFT and keystone transform

2013 ◽  
Vol 56 (6) ◽  
pp. 1-13 ◽  
Author(s):  
Jing Tian ◽  
Wei Cui ◽  
Qing Shen ◽  
ZiXiang Wei ◽  
SiLiang Wu
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Maneuvering Target ◽  
Keystone Transform ◽  
Detection Approach

A novel method for high-speed maneuvering target detection and motion parameters estimation

2020 ◽  
Vol 31 (4) ◽  
pp. 1625-1647
Author(s):  
Mingming Tian ◽  
Guisheng Liao ◽  
Shengqi Zhu ◽  
Xiongpeng He ◽  
Yunpeng Li
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Parameters Estimation ◽  
Maneuvering Target ◽  
Novel Method ◽  
Motion Parameters
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