Self calibrating radar system

Details Self calibrating radar system Self calibrating radar system

1997-06-11

1998-11-24

Lobo, Ian J.

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

Testing or calibrating of radar system

By monitoring

343786, G01S 740

Patent

active

058413944

ABSTRACT:
A radar system is described, which includes a built-in calibration/fault detection apparatus that enables rapid and easy calibration of the system. The system includes a long extrusion (70) forming a feed waveguide (90), a calibration waveguide (92), and a base (94) of a horn antenna. A linear array of TR (transmit/receive) units (42) are mounted on the extrusion, with each having a feed probe (100) that receives a feed signal, changes its phase and amplifies it, and delivers it through a monopole (110) to the horn. The calibration waveguide is coupled through holes (130) to the horn, with a calibration pickup (132) mounted at the end of the calibration waveguide. During calibration, one TR unit at a time is energized, and its output is detected by the calibration pickup to check the amplitude and phase of the TR unit.

REFERENCES:
patent: 4538150 (1985-08-01), Bone, Jr.
patent: 5111208 (1992-05-01), Lopez
patent: 5563618 (1996-10-01), Tamura

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