CAJ | 학술논문

针对惯性/卫星(INS/GPS)组合系统空中动态启动下初始滚转角给定依赖外部测量或弹道滚转角必须可预测的问题，提出了基于 GPS 测量信息和 INS 测量加速度信息的 INS/GPS 组合系统的空中动态初始滚转角粗对准的方法。该方法利用 GPS 接收机测量速度和 INS 中加速度计测量加速度信息直接解算初始滚转角，充分利用了这两类信息测量精度较高的优点，且算法简单、计算量小、粗对准需要的信息量少和时间短，不需要增加外部传感器。试验结果分析表明，该方法对载体动态运动滚转角粗对准的精度受到载体运动加加速度大小、载体运动攻角和侧滑角大小的影响。为了提高系统的适应性和精度，必须进一步采用高精度非线性模型及滤波算法进行精对准。
침대관성/위성(INS/GPS)조합계통공중동태계동하초시곤전각급정의뢰외부측량혹탄도곤전각필수가예측적문제，제출료기우 GPS 측량신식화 INS 측량가속도신식적 INS/GPS 조합계통적공중동태초시곤전각조대준적방법。해방법이용 GPS 접수궤측량속도화 INS 중가속도계측량가속도신식직접해산초시곤전각，충분이용료저량류신식측량정도교고적우점，차산법간단、계산량소、조대준수요적신식량소화시간단，불수요증가외부전감기。시험결과분석표명，해방법대재체동태운동곤전각조대준적정도수도재체운동가가속도대소、재체운동공각화측활각대소적영향。위료제고계통적괄응성화정도，필수진일보채용고정도비선성모형급려파산법진행정대준。
Aiming at the problems of in-flight initial alignment of the dynamic roll angle for INS/GPS integrated navigation system relying on external measurement or trajectory must be predicable,a dynamic roll angle in-flight initial alignment method based on only GPS information and INS acceleration was proposed.This method used the velocity measured by GPS receiver and the acceleration measured by accelerator to calculate the in-flight dynamic roll angle directly,it was sim-ple and fast,meanwhile large amount of calculation and datum are unnecessary,external sensors are unnecessary.