CAJ | 학술논문

针对惯性辅助卫星完好性监测多解分离法计算量大的问题，给出了一种基于参数序贯复用的优化方法。在对多解分离法及其计算量分析基础上，采用序贯处理技术，推导了低阶顺序处理多解分离法。同时根据系统结构特点以及滤波器间量测信息高度相关性，提出滤波器参数复用方法，避免参数重复计算。通过仿真实验，从故障引入时间和可见星数目变化两个方面对优化前后多解分离法的计算量进行了对比。仿真结果表明该优化方法可以有效降低多解分离法的计算量，便于工程应用。
침대관성보조위성완호성감측다해분리법계산량대적문제，급출료일충기우삼수서관복용적우화방법。재대다해분리법급기계산량분석기출상，채용서관처리기술，추도료저계순서처리다해분리법。동시근거계통결구특점이급려파기간량측신식고도상관성，제출려파기삼수복용방법，피면삼수중복계산。통과방진실험，종고장인입시간화가견성수목변화량개방면대우화전후다해분리법적계산량진행료대비。방진결과표명해우화방법가이유효강저다해분리법적계산량，편우공정응용。
An improved efficient method based on parameter sequential reuse is presented in order to reduce the computation burden of Multiple Solution Separation(MSS) method in inertial aided satellite integrity monitoring. Based on MSS method and its computational complexity analysis, a low-order processing MSS method is deduced with sequential processing. With the help of system structure and correlations of filters measurements, a filter parameter reuse method is proposed to avoid parameters replication computation. Simulation experiments are implemented by changing the fault involvement moment and visible satellite numbers, and the computational complexity between proposed method and MSS method are compared. The simulation results show that the new improved method can effectively reduce the computation burden of MSS and is convenient in practical application.