CAJ | 학술논문

针对角速率输入的传统捷联惯导姿态算法在高动态环境下精度低的问题，提出一种角速率输入的在期望的圆锥运动环境下的频域最优圆锥误差补偿优化算法。在分析圆锥误差补偿通式的基础上，建立了角速率输入的圆锥误差准则，基于最小二乘原理建立了圆锥误差补偿优化目标，并推导了角速率输入的圆锥误差补偿优化系数，讨论了载体运动环境。在圆锥运动环境下，将新算法与传统的频域泰勒算法通过数字仿真进行了对比分析，结果表明，在高频圆锥运动环境下，新算法的精度明显高于频域泰勒算法。
침대각속솔수입적전통첩련관도자태산법재고동태배경하정도저적문제，제출일충각속솔수입적재기망적원추운동배경하적빈역최우원추오차보상우화산법。재분석원추오차보상통식적기출상，건립료각속솔수입적원추오차준칙，기우최소이승원리건립료원추오차보상우화목표，병추도료각속솔수입적원추오차보상우화계수，토론료재체운동배경。재원추운동배경하，장신산법여전통적빈역태륵산법통과수자방진진행료대비분석，결과표명，재고빈원추운동배경하，신산법적정도명현고우빈역태륵산법。
Aiming at low accuracy problem of conventional inertial strapdown navigation attitude algorithm for angular rate inputs in high dynamic environments, a coning error correction frequency-domain optimization algorithm for angular rate inputs in expected coning environments was proposed. Firstly, the coning error normalization rule was built for angular rate inputs according to the analysis of the general expression of coning error correction algorithm. Then, the optimal goal of coning error correction was determined based on principle of least square. Simultaneously, the coning error correction optimization coefficients were derived for angular rate inputs, and the vehicle motion environments were discussed. At last, the accuracy analyses of the both algorithms were implemented by comparing the new algorithm with the frequency Taylor algorithm through computational simulation. The results indicate that the accuracy of the new algorithm is significantly superior to that of the frequency Taylor algorithm in high frequency coning environments.