CAJ | 학술논문

在中国未来的深空探测计划中，将采用天基雷达探测技术，以实现对整个星球表面次表层结构的探测。星载高频雷达探测仪通过月球表面天底点和次表面天底点的回波时延差与强度探测月球分层结构。为了获取次表层结构信息，研究了电磁波在月球分层结构内散射与传播的建模与模拟，对利用KA近似方法计算表层及次表层回波的方法进行了研究，分析了不同参数对回波的影响，最后通过仿真进行了验证。
재중국미래적심공탐측계화중，장채용천기뢰체탐측기술，이실현대정개성구표면차표층결구적탐측。성재고빈뢰체탐측의통과월구표면천저점화차표면천저점적회파시연차여강도탐측월구분층결구。위료획취차표층결구신식，연구료전자파재월구분층결구내산사여전파적건모여모의，대이용KA근사방법계산표층급차표층회파적방법진행료연구，분석료불동삼수대회파적영향，최후통과방진진행료험증。
In order to detect the subsurface structure of the entire planet surface,the space-based radar detection technolo-gy will be used in future deep space exploration program of China. Space-borne high frequency(HF)radar sounder detects the layered structure of the moon through the echoes delay inequality and intensity of the nadir from the lunar surface and subsur-face. In order to obtain the subsurface structure information,it is significative to research the modeling and simulation of the electromagnetic wave scattering and propagation in lunar layered structure. The method of calculating the surface and subsurface echo by using KA approximate method is studied,the effects of different parameters on the echo are analyzed,which finally proved by simulation.