High repetition frequency side-looking pulse radar system

Details High repetition frequency side-looking pulse radar system High repetition frequency side-looking pulse radar system

1976-06-18

1977-12-20

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5CM, 343 16M, G01S 910, G01S 922, G01S 952

Patent

active

040645100

ABSTRACT:
The invention relates to side-looking radar systems and more especially to high altitude airborne radar systems functioning at a high repetition frequency. In order to avoid ambiguities in regard to distance, the antenna comprises an additional channel which has a radiation pattern which has an odd symmetry about its axis and means are connected to said antenna for deriving the angular interval relative to the axis of the antenna of the direction of the obstacle corresponding to the received echoes. Gating means select the angular interval signal at the middle of the recurrence, for controlling the recurrence frequency of the radar and maintaining the ambiguous areas outside the selected observed area.

REFERENCES:
patent: 3341847 (1967-09-01), Fried et al.
patent: 3728724 (1973-04-01), Alpers
patent: 3927405 (1975-12-01), Painsard et al.

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