系统工程与电子技术
繫統工程與電子技術
계통공정여전자기술
Systems Engineering and Electronics
2015年
10期
2352-2357
,共6页
韩威华%甘庆波%陈险峰%朱政帆
韓威華%甘慶波%陳險峰%硃政帆
한위화%감경파%진험봉%주정범
地球静止轨道%碎片清理%天基激光%耦合优化控制
地毬靜止軌道%碎片清理%天基激光%耦閤優化控製
지구정지궤도%쇄편청리%천기격광%우합우화공제
geostationary earth orbit (GEO)%remove debris%spacecraft-based laser%coupled optimal control
推导了天基高能激光清理作用地球静止轨道(geostationary earth orbit,GEO)碎片的最佳角度解析关系,分析了天基平台接近碎片过程以及相对碎片空间位置和姿态的相互影响,建立了激光清理 GEO 碎片的天基平台的轨道姿态耦合动力学模型,考虑了终端状态、安全距离、保持连续观测、控制和状态变量幅值等约束条件,以推进燃料消耗最省为性能指标,依据极小值原理推导了耦合控制方案的最优性内部结构标准,基于 hp 自适应伪谱法对仿真场景进行了寻优求解和分析验证。仿真结果表明,耦合优化控制方案合理可行,对未来天基激光清理 GEO 碎片的工程实施具有一定参考价值。
推導瞭天基高能激光清理作用地毬靜止軌道(geostationary earth orbit,GEO)碎片的最佳角度解析關繫,分析瞭天基平檯接近碎片過程以及相對碎片空間位置和姿態的相互影響,建立瞭激光清理 GEO 碎片的天基平檯的軌道姿態耦閤動力學模型,攷慮瞭終耑狀態、安全距離、保持連續觀測、控製和狀態變量幅值等約束條件,以推進燃料消耗最省為性能指標,依據極小值原理推導瞭耦閤控製方案的最優性內部結構標準,基于 hp 自適應偽譜法對倣真場景進行瞭尋優求解和分析驗證。倣真結果錶明,耦閤優化控製方案閤理可行,對未來天基激光清理 GEO 碎片的工程實施具有一定參攷價值。
추도료천기고능격광청리작용지구정지궤도(geostationary earth orbit,GEO)쇄편적최가각도해석관계,분석료천기평태접근쇄편과정이급상대쇄편공간위치화자태적상호영향,건립료격광청리 GEO 쇄편적천기평태적궤도자태우합동역학모형,고필료종단상태、안전거리、보지련속관측、공제화상태변량폭치등약속조건,이추진연료소모최성위성능지표,의거겁소치원리추도료우합공제방안적최우성내부결구표준,기우 hp 자괄응위보법대방진장경진행료심우구해화분석험증。방진결과표명,우합우화공제방안합리가행,대미래천기격광청리 GEO 쇄편적공정실시구유일정삼고개치。
Firstly an expression of the optimal interacting direction of the single high-powered laser pulse about the geostationary earth orbit(GEO)debris is derived.By analyzing approach and generate the optimal di-rection,the spacecraft is in the need of orbit and attitude coupled control relative to the debris.As models of both translational and rotational dynamics are considered,constraints of terminal state,collision avoidance, keep seeing and finite magnitude of state and control variables are imposed.The problem of by using minimum-energy optimal trajectory is formulated and further decomposed the Pontryagin minimum principle.The problem is solved numerically by using the hp-adaptive pseudospectral method and the sequential quadratic programming algorithm.Finally,the obtained solution is verified through the minimum principle.Simulation results show that minimum-energy solution is feasible,and the algorithm is efficient.The investigation provides a technical approach for engineering applications of removing debris.