Stacked beam radar and target height measurement extractor espec

Details Stacked beam radar and target height measurement extractor espec Stacked beam radar and target height measurement extractor espec

1984-03-27

1987-03-10

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

Determining distance

Height finder

342133, G01S 1348

Patent

active

046493891

ABSTRACT:
A radar having a multiplicity of receive beams stacked in elevation and a target height extractor especially for use therein are disclosed. In operation, a set of range sweeps corresponding to an azimuth scan of the stacked receive beams across a detected target is established. A range cell interval corresponding to the detected target is estimated for each range sweep of the set. A target range measurement is computed from a set of estimated range intervals. Only the radar receive beam echo information corresponding to the estimated range cell interval for each range sweep of the established set is used by the height extractor to compute a corresponding set of elevation angles. A target elevation angle is formed as the weighted average of this computed set. Only one height computation is performed for each established set of range sweeps based on a function of factors including the computed target elevation angle and computed range measurement of the corresponding established set of range sweeps.

REFERENCES:
patent: 3170156 (1965-02-01), Downs
patent: 3311913 (1967-03-01), Varela
patent: 3955195 (1976-05-01), Greene
patent: 4117538 (1978-09-01), Schrader et al.
patent: 4150378 (1979-04-01), Barton
patent: 4316191 (1982-02-01), Sawatari et al.
patent: 4342997 (1982-08-01), Evans
patent: 4538150 (1985-08-01), Bone, Jr.

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