Research of High Resolution ISAR Algorithm Based on Coherent Registration and Fusion for Distributed Radar

3rd International Conference on Aeronautical Materials and Aerospace Engineering

航空航天工程

Luo, Xi^1^2 ; Guo, Lixin^2 ; Song, Dawei^1 ; Shang, She^1 ; Li, Xiaojun^1

National Key Laboratory of Science and Technology on Space Microwave, Xian

710010, China^1

Xidian University, Xian

710071, China^2

关键词: Data fusion theory;    Electromagnetic scattering;    Exponential-sum models;    Hardware development;    Inverse synthetic aperture radars (ISAR);    Multi frequency band;    Physical restriction;    Radar echo signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/608/1/012044/pdf
DOI  :  10.1088/1757-899X/608/1/012044

学科分类：航空航天科学

来源: IOP

【 摘 要 】

According to the Inverse Synthetic Aperture Radar (ISAR), this thesis analyses the attributed to the physical restriction that the ISAR image resolution cannot be improved, therefore, a high resolution ISAR algorithm for distributed radar system is proposed. Depended on existing hardware development level, it combines multi-radar echo signals for one target and then utilize data fusion theory for multi-visual angle and multi-frequency band to obtain ultra-wide band and larger coherent accumulation angle, on this account, the much higher resolution 2D-image than the single radar is able to acquired. The main content illustrates the method for high resolution ISAR on target electromagnetic scattering two-exponential sum model, and the simulation is made to demonstrate the analysis is effective and validity.