CAJ | 학술논문

针对嫦娥三号软着陆轨道设计与控制策略,使用了仿真计算、螺旋搜索等方法,建立了经纬度求解、速度求解、粗避障和精避障段的优化控制等模型,并利用 MATALB 等软件对模型进行求解,得到了近地点近月点速度为1.678×103 m/s,高度为14.8 km,远月点速度为1.604×103 m/s 等结论.通过对着陆准备阶段、粗避障段、精避障段及缓速下降段分段研究,得到一个简单合理的优化控制模型.在对数字高程图的图像处理中,引入坡度的概念,对所得坡度图网格化处理,全面而有效.
침대항아삼호연착륙궤도설계여공제책략,사용료방진계산、라선수색등방법,건립료경위도구해、속도구해、조피장화정피장단적우화공제등모형,병이용 MATALB 등연건대모형진행구해,득도료근지점근월점속도위1.678×103 m/s,고도위14.8 km,원월점속도위1.604×103 m/s 등결론.통과대착륙준비계단、조피장단、정피장단급완속하강단분단연구,득도일개간단합리적우화공제모형.재대수자고정도적도상처리중,인입파도적개념,대소득파도도망격화처리,전면이유효.
In view of the Chang’e three soft landing orbit design and control strategy,using the simulation calculation,spiral search methods,establishing models such as longitude and latitude sdving,the speed sdving,the optimization of coarse and fine obstacle avoidance control,and the model is solved by software MATALB,obtained the speed is 1.678 km/s,14.8 km perigee near month,far month point speed is 1.604 km/s.Finally,by studing the landing stage,coarse obstacle avoidance,fine obstacle avoidance and slow decline period of segmentation,a simple and reasonable optimization control model is got.