CAJ | 학술논문

由于卫星运动的不可交换性,在卫星测量过程中引入螺旋修正算法描述编队卫星中主从星的相对位置和姿态信息,提出了基于螺旋修正的编队卫星相对位姿测量算法.首先基于典型的螺旋环境,设计了螺旋修正算法,论证了其与传统圆锥修正算法和划船修正算法的一致性,采用三子样螺旋修正算法进行仿真并与传统算法的精度进行比较.仿真结果表明该算法的位置和姿态精度分别可以达到10-3 m和10-6数量级,满足测量精度要求.该算法不用像传统算法分别为卫星的位置更新和姿态更新设计两组优化系数,因此降低了算法复杂度.
유우위성운동적불가교환성,재위성측량과정중인입라선수정산법묘술편대위성중주종성적상대위치화자태신식,제출료기우라선수정적편대위성상대위자측량산법.수선기우전형적라선배경,설계료라선수정산법,론증료기여전통원추수정산법화화선수정산법적일치성,채용삼자양라선수정산법진행방진병여전통산법적정도진행비교.방진결과표명해산법적위치화자태정도분별가이체도10-3 m화10-6수량급,만족측량정도요구.해산법불용상전통산법분별위위성적위치경신화자태경신설계량조우화계수,인차강저료산법복잡도.
In view that the satellite motion is non-exchangeable, a spiral correction algorithm was put forward to describe the relative position and attitude information of principal satellite and deputy satellite during measurement procedure, and a relative position and attitude measurement algorithm was proposed based on spiral correction. At first, the spiral correction algorithm was designed based on the typical spiral motion. Then its consistency with traditional coning correction and sculling correction algorithm was proved by using three-subsample spiral correction in simulation, and its accuracy was compared with traditional algorithms. The simulation result shows that the accuracy level of position and attitude could reach 10-3 m and 10-6, respectively, which could perfectly satisfy the accuracy requirement. Unlike traditional algorithms, the spiral correction algorithm doesn’t have to design two sets of coefficients respectively for updating the satellite’s position and attitude, reducing the complexity of the algorithm.