초록 ▼

An error-free pointing and tracking system is disclosed which separates the functions of pointing and tracking. Beginning with an initialized trajectory for an object, a sensor is positioned and deviations of the object position with respect to the sensor are noted. To the extent these deviations ar

An error-free pointing and tracking system is disclosed which separates the functions of pointing and tracking. Beginning with an initialized trajectory for an object, a sensor is positioned and deviations of the object position with respect to the sensor are noted. To the extent these deviations are trended, the gain of a trajectory correction algorithm is adjusted. Based on the adaptive gain trajectory correction algorithm, a new position estimate is determined. The new position estimate is corrected for servo lag error by referring to a predefined correlation between at least the acceleration term of the trajectory and prerecorded servo lag error. The position estimate, corrected for servo lag is used to then point the sensor.

대표청구항 ▼

A method of tracking a remote object using a sensor positioned by a servomechanism, said method comprising the steps of: (a) predetermining, for said servomechanism, servo lag in accordance with one or more of object acceleration, velocity or position, (b) tracking said object with said sensor, and

A method of tracking a remote object using a sensor positioned by a servomechanism, said method comprising the steps of: (a) predetermining, for said servomechanism, servo lag in accordance with one or more of object acceleration, velocity or position, (b) tracking said object with said sensor, and in the course of said tracking generating an estimate of acceleration, velocity and position of said object, (c) based on said predetermining step, generating a quantity representing servo lag from one or more of the estimates of acceleration, velocity and position from step (b), and (d) modifying said estimated position by said quantity generated in said step (c).