Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Missile or spacecraft guidance
Patent
1996-12-20
1998-09-15
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Missile or spacecraft guidance
342 77, 342 80, 342 97, 342141, 342149, 342165, 342174, 244 319, G01S 740
Patent
active
058085785
ABSTRACT:
A method for calibrating the radar system includes the steps of: replacing stored statistically generated "average" error correction coefficients with error correction coefficients personal to a missile under test. More particularly, stored in the missile's memory are: (a) first personalized error correction coefficients generated in response to test signals produced internal to the missile and injected into a monopulse arithmetic unit for the missile's receiver/processor; and (b) a second set of personalized error coefficients generated in response to test signals external to the missile and injected through the missile's antenna to the receiver/processor. The missile includes a radio frequency (R.F.) energy test signal generator for performing a test during the missile's flight to determine "in-flight" personalized error correction coefficients. The test is performed in-flight by injecting the R.F. energy test signal generated internal to the missile during the missile's flight into the monopulse arithmetic unit for the receiver/processor. The receiver/processor: (a) compares the first set of error correction coefficients with the "in-flight" error coefficients and adjusts the second set of error correction coefficients in accordance with such comparison; and, (b) if R.F. energy external to the missile is less than a predetermined threshold level, uses the adjusted second set of coefficients during the missile's flight to produce boresight error signals; otherwise, the receiver/processor uses unadjusted first set of error correction coefficients.
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Barbella Peter F.
Carmella Jeffrey E.
Crawford Malcolm F.
Davis Michael A.
Kaupinis William M.
Lenzen, Jr. Glenn H.
Rudd Andrew J.
Sotomayor John B.
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