Improved autofocusing of stepped-frequency ISAR images using new form of particle swarm optimisation

Park, S.H.; Kim, H.T.; Kim, K.T.

doi:10.1049/el.2009.1484

Cited by 15 publications

(2 citation statements)

References 3 publications

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“…   와    를 추정하기 위해 최적화 기법 중 널리 쓰이는 particle swarm optimization (PSO)를 적용한다 [3], [4] . [5] 과 대비 최소화 위상 보정 (Minimum Contrast Phase Adjustment: MCPA) 알고리즘 [6] 을 적용하였다.…”

Section: 진운동 성분을 제거할 수 있다 하지만 표적의 움직임이 매우 빠르거나unclassified

Inter-Pulse Motion Compensation of an ISAR Image Generated by Stepped Chirp Waveform Using Improved Particle Swarm Optimization

Kang¹,

Lee²,

Park

et al. 2015

The Journal of Korean Institute of Electromagnetic Engineering

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역합성 개구면 레이더(Inverse AbstractInverse synthetic aperture radar(ISAR) is coherent imaging system formed by conducting signal processing of received data which consists of radar cross section(RCS) reflected from maneuvering target. A novel algorithm is proposed to compensate inter-pulse motion(IPM) for the purpose of forming an well-focused ISAR image through signals generated by stepped chirp waveform(SCW). The velocity and acceleration of the target related to IPM are estimated based on particle swarm optimization (PSO) which has been widely used in optimization technique. Furthermore, a modified PSO which enables us to improve the performance of PSO is used to compensate IPM in a very short-time. Simulation results using point scatterer model of a Boeing-737 aircraft validate the performance of the proposed algorithm.

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Section: 진운동 성분을 제거할 수 있다 하지만 표적의 움직임이 매우 빠르거나unclassified

Inter-Pulse Motion Compensation of an ISAR Image Generated by Stepped Chirp Waveform Using Improved Particle Swarm Optimization

Kang¹,

Lee²,

Park

et al. 2015

The Journal of Korean Institute of Electromagnetic Engineering

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“…However, SFW requires compensation for inter-pulse phase errors [8], and the fixed motion equipment [4,9], and the target must be portable so that its MD can be analyzed in various clutter environments. Furthermore, the rotation velocity of the target for micromotion dynamics must also be increased to resemble that of a real target.…”

Section: Introductionmentioning

confidence: 99%

Efficient Measurement System to Investigate Micro-Doppler Signature of Ballistic Missile

Choi¹,

Kim²,

Jung³

et al. 2016

International Journal of Aeronautical and Space Sciences

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Micro-Doppler (MD) shift caused by the micro-motion of a ballistic missile (BM) can be very useful to identify it. In this paper, the MD signatures of three scale-model BMs are investigated using a portable measurement system. The measurement system consists of an X-band 2-by-2 phase comparison mono-pulse radar, and a mechanical device that can impart controlled spinning and coning motions simultaneously to a model to yield the MD signature that replicates the characteristic of each target and the corresponding micro-motion. The coning motion determined the overall period of MD, and the spinning motion increased its amplitude. MD was also dependent on aspect angle. The designed system is portable, and can implement many micro-motions; it will contribute to analysis of MD in various situations.

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Maximum deviation sliding search based stepped frequency synthesis method for marine vibroseis research

2022

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Improved autofocusing of stepped-frequency ISAR images using new form of particle swarm optimisation

Cited by 15 publications

References 3 publications

Inter-Pulse Motion Compensation of an ISAR Image Generated by Stepped Chirp Waveform Using Improved Particle Swarm Optimization

Inter-Pulse Motion Compensation of an ISAR Image Generated by Stepped Chirp Waveform Using Improved Particle Swarm Optimization

Efficient Measurement System to Investigate Micro-Doppler Signature of Ballistic Missile

Maximum deviation sliding search based stepped frequency synthesis method for marine vibroseis research

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