Application of the Same Beam Interferometry Measurement in Relative Position Determination on Lunar Surface

• Main Authors: HUANG Anyi, XIE Xin, ZHANG Zhibin, LI Hengnian
• Format: Article
• Language: zho
• Published: Surveying and Mapping Press 2015-09-01
• Series: Acta Geodaetica et Cartographica Sinica
• Subjects: same beam interferometry measurement; relative position determination; KF with restriction; lunar topography model
• Online Access: http://html.rhhz.net/CHXB/html/2015-9-973.htm

Based on the principle and observation model of the same beam interferometry measurement, observation equations of differential time delay and time delay rate for targets on lunar surface are proposed. Restriction of appointed height and digital lunar height model is introduced and a Kalman filter with restriction to determine the relative position is put forward. By data simulation, the arithmetic is then validated and evaluated, which could fleetly and accurately determine the relative position between rover and lander. Low precision of the lander's position is required in the calculation.