Booster navigation and positioning solving method applicable to high-dynamic rolling reentry

• Main Authors: YANG YUNFEI, ZHANG TAO, ZHANG YIPU, CHEN SISI, YU GUANGXUE, ZHU PINGPING, WEI YUANMING, LIU JIANZHONG, LIU YANG, ZHANG BOJUN, CHENG XING, XU QINGHONG, DENG WUYAN, HE ZHAOWEI, CHEN BIN, HU WEI, XU QIAN, ZHANG PUZHUO, CHEN YU, LI DAN, LI HUANGLI, ZHAO YONGZHI, HUANG LIANG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2019
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention provides a booster navigation and positioning solving method applicable to high-dynamic rolling reentry. The booster navigation and positioning solving method comprises the following steps: (1) establishing a high-dynamic attitude solving equation according to an optimized three-subsample equivalent rotating vector method; (2) establishing a speed and position navigation solving model of a boosting returning section according to the high-dynamic attitude solving equation established by step (1); (3) establishing an error model of an MEMS (Micro-electromechanical Systems) inertialdevice; identifying errors of the MEMS inertial device according to the speed and position navigation solving model of the boosting returning section of step (2) and boosting reentry actual measurement data, so as to obtain a revised MEMS inertial device output result; and (4) substituting the revised MEMS inertial device output result obtained by step (3) into the speed and position navigation solving model of the boost