Two and one-half dimensional radar system

Communications: directive radio wave systems and devices (e.g. – Determining distance – With pulse modulation

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342148, G01S 346

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active

049610759

ABSTRACT:
A radar system for determining not only the azimuth and range of a target but also the target height over a predetermined range of elevation angles has separate receiving and signal processing channels coupled to a dual beam antenna for processing signals returned from a single target. The output of each signal processor is coupled to a height processor which divides the sum of the received signals into the difference of the two signals. The resulting ratio is used to access a look-up table to identify the elevation angle associated with the ratio from which the height of the target is calculated. The look-up table includes correction values to compensate for the antenna pattern nonlinearity.

REFERENCES:
patent: 3106708 (1963-10-01), Sletten
patent: 3277470 (1966-10-01), Page
patent: 4224618 (1980-09-01), Rich et al.
patent: 4342997 (1982-09-01), Evans
patent: 4353073 (1982-10-01), Brunner et al.
patent: 4649390 (1987-03-01), Andrews et al.
"Introduction to Radar Systems," Second Edition, Merrill I. Skolnik, 1980, McGraw-Hill Book Company, pp. 541-547.

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