CAJ | 학술논문

针对定向设备寻北过程中易受阵风、人员走动等随机干扰影响降低寻北精度的问题，提出了基于递推加权最小二乘估计的定向设备寻北抗干扰算法。该算法以定向设备惯性敏感器输出数据为观测量，实时辨识数据的有效性和精度，并计算加权系数，通过递推算法进行数据滤波，提高了动态条件下惯性器件输出测量数据的估计精度。试验结果表明，该算法能够确保定向设备在5级阵风、发动机和载车取力发电干扰条件下的寻北精度。
침대정향설비심북과정중역수진풍、인원주동등수궤간우영향강저심북정도적문제，제출료기우체추가권최소이승고계적정향설비심북항간우산법。해산법이정향설비관성민감기수출수거위관측량，실시변식수거적유효성화정도，병계산가권계수，통과체추산법진행수거려파，제고료동태조건하관성기건수출측량수거적고계정도。시험결과표명，해산법능구학보정향설비재5급진풍、발동궤화재차취력발전간우조건하적심북정도。
Since directional system is sensitive to random interference, gust or libration by people walk, for example, the anti-interference approach based on the recursive weighted least squares was proposed. The approach takes inertial unit output as observation variable, and effectiveness and precision of the data were identified in real-time. According to the result, the arithmetic makes use of the data with weigh-ted coefficient. The approach boosts filter precision of the inertial units under random sway disturbance. The test results show that the algo-rithm is efficiency for north-seeking equipment The algorithm can ensure that the north-seeking accuracy of directional equipment at level 5 gust of wind, engine and vehicle power generating interference conditions.