Error-free integration pointing and tracking

Details Error-free integration pointing and tracking Error-free integration pointing and tracking

1987-09-30

1989-04-25

Smith, Jerry

Registers

Ordnance or weapon systems computer

With target tracking means

235412, 364449, 364516, 364164, 342 73, 342 75, 318560, 318569, G01S 746, G01S 1358, G01S 1306

Patent

active

048250554

ABSTRACT:
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.

REFERENCES:
patent: 3984831 (1976-10-01), Jones et al.
patent: 4034208 (1977-07-01), Vaeth et al.
patent: 4071744 (1978-01-01), Pollock
patent: 4128837 (1978-12-01), Page
patent: 4148026 (1979-04-01), Gendreu
patent: 4320287 (1982-03-01), Rawicz
patent: 4590476 (1986-05-01), Burkett
patent: 4760397 (1988-07-01), Piccolruaz

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