CAJ | 학술논문

在 SAR 浅海地形成像基本原理的基础上，对现有的流场仿真和微波成像模型进行研究，选择二维水动力模型和比较成熟的 M4S 仿真软件，建立了 SAR 对浅海地形成像模型，使用该模型对准一维地形进行仿真实验，综合分析了气象水文条件(风场和流场)和雷达参数(波段、极化和入射角)对 SAR 成像的影响，仿真结果说明 SAR 对浅海地形成像受到上述条件的综合影响。传统的浅海水下地形反演方法都是在单视角单波段的情况下进行的，而多视角多波段 SAR 浅海地形研究则考虑了多个入射角和多个波段的不同影响，通过仿真结果分析可知，提出的方法能有效提高反演精度和抗噪性能。
재 SAR 천해지형성상기본원리적기출상，대현유적류장방진화미파성상모형진행연구，선택이유수동력모형화비교성숙적 M4S 방진연건，건립료 SAR 대천해지형성상모형，사용해모형대준일유지형진행방진실험，종합분석료기상수문조건(풍장화류장)화뢰체삼수(파단、겁화화입사각)대 SAR 성상적영향，방진결과설명 SAR 대천해지형성상수도상술조건적종합영향。전통적천해수하지형반연방법도시재단시각단파단적정황하진행적，이다시각다파단 SAR 천해지형연구칙고필료다개입사각화다개파단적불동영향，통과방진결과분석가지，제출적방법능유효제고반연정도화항조성능。
On the basis of the basic principle of SAR imaging shallow sea topography,the existing flow field simulation and microwave imaging model are studied.The two-dimensional hydrodynamic model and a more mature M4S simulation software are selected.The shallow sea topography SAR imaging model is es-tablished.One-dimensional terrain simulation is made using this model.The comprehensive analysis of the meteorological hydrological conditions (wind field and flow field)and the influences of radar parameters (wavelength,polarization and incident angle)on SAR imaging are also conducted.The simulation results show that the shallow sea topography SAR imaging is affected by these conditions.The traditional shallow underwater topography inversion was conducted in the case of single angle and single band.The multiple points of view and multiband SAR neritic underwater topography research in this paper considers the different influences of multiple angles of incidence and multiple wavelengths.The simulation results show that the proposed method can improve the anti-noise performance.