Communications: directive radio wave systems and devices (e.g. – Plural radar
Patent
1998-06-11
2000-05-16
Gregory, Bernarr E.
Communications: directive radio wave systems and devices (e.g.,
Plural radar
342 61, 342 73, 342 82, 342 88, 342 94, 342 95, 342118, 342134, 342137, 342192, 342195, G01S 1312, G01S 1366
Patent
active
060643315
ABSTRACT:
The objectives of the invention are met by an improved radar tracking system and a process of radar tracking. In the improved system and process, an estimate of a target range and a range uncertainity swath from a first radar system is inputted into a second radar system along with a duty factor. The second radar system determines a set of zero eclipse intervals and respective ranges of range pulse repetition frequencies that solves a first set of equations. A usable range pulse repetition frequency is chosen from the results. Next, an estimated target Doppler frequency region and a Doppler uncertainity swath is inputted into the second radar system. The second radar system is instructed to determine a set of clear Doppler frequency region intervals, and respective ranges of Doppler frequency pulse repetition frequencies by solving a second set of equations. A usable pulse repetition frequency is chosen that is present in at least one of the ranges of range pulse repetition frequencies and that is present in at least one of the ranges of Doppler frequency pulse repetition frequencies. The second radar system is then instructed to track the target using the usable pulse repetition frequency.
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Avila Louis J.
Robinson Prentiss N.
Boeing North American Inc.
Gregory Bernarr E.
Stout Donald E.
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