Topographical Algorithm for High-Order State Estimation of Spacecraft without IMU Data

摘要

A new topographical algorithm is presented stochastically or geometrically to estimate the high-order state vector of attitude, angular rate, thrust, and dynamic parameters needed for spacecraft control beyond the ordinary estimation of position and velocity. Without the vehicle inner information of a gyroscope and an accelerometer, only the outer information of the reflection wave measurement from a ground surface is considered with the discrimination for the multi-beams emitted form several antennas equipped on a vehicle.