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Target reference template generation is a key technique for radar image matching guidance. The generation method selection mostly determines the overall performance of radar image matching guidance system. In this paper, a method of target reference template generation for image matching guidance with missile-borne SAR based on echo signal simulation of missile-borne SAR is presented. The feasibility...
The real sea-clutter data are always hard to analyze due to their instinct complexity, large scale non-stationary, and lack of fundamental understanding of the natural dynamics. Measurable modeling of sea clutter is an important precondition in many research areas and practical applications, such as salvage and marine radar signal processing. However, few works have been down on the time-frequency...
As an essential approach of SAR image interpretation, a good pose estimation calls for two conditions: an accurate extraction of the scattering centers and a thorough exploration of the structural information among them. The article focuses on these two topics successively. Firstly, the power spectrum estimation methods are recommended to improve the scattering center resolution and the Minimum Variance...
This is the first investigation on converse beam cross sliding spotlight SAR (CBC sliding spotlight SAR) which was firstly proposed in this essay. In conventional sliding spotlight SAR, the azimuth scene extension is larger than that of a pure spotlight mode and the azimuth resolution of scatterers is higher than in classical stripmap mode. The geometry and properties of classical standard and inverse...
Different properties of two operation modes for cruise missile borne side looking instantaneous imaging synthetic aperture radar with linear array antenna along flight track were investigated. Its theoretical azimuth resolution was induced and a novel imaging algorithm called compound range-doppler algorithm was proposed. The imaging procedure was given and images were gained with both ECS and compound...
Study of frequency coded synthetic aperture radar was concerned in this paper. A new frequency-domain extracted IFFT approach (FDE-IFFT) to obtain high range resolution profile was proposed, and the mathematical principle of this new method was detailed analyzed. Simulation results and series of radar images using time domain back-projection method were given in the end. All results proved that the...
This paper defines series of important performance evaluation parameters to evaluate amplitude-phase (AP) algorithm comparing with that of block adaptive quantization (BAQ) algorithm. The evaluation procedure is carried out in two domains, raw data domain and image domain. Numerical experiments based on ERS-2 data show that AP algorithm provides us with more compression ratio (CR) choices than BAQ...
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