Process and apparatus for the detection of objects, especially o

Details Process and apparatus for the detection of objects, especially o Process and apparatus for the detection of objects, especially o

1977-03-11

1979-04-24

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5SA, 343 175, G01S 924

Patent

active

041515277

ABSTRACT:
A process and apparatus for the detection of an object in air, wherein a beam of electromagnetic radiation is emitted, the reflected beam is received, the frequency of the reflected beam being varied discontinuously over a frequency band. The amplitude of the energy of the beam received for the various frequencies of the emitted beam is measured so as to utilize, for the detection of the object, the particular frequency or frequencies of the beam for which the reflected beam possesses a substantially higher energy than the energy of the beam reflected at the other frequencies.

REFERENCES:
patent: 3110897 (1963-11-01), Laurent
patent: 3381292 (1968-04-01), Hansen
patent: 3603995 (1971-09-01), Howard
patent: 3716823 (1973-02-01), Thompson et al.
patent: 3772689 (1973-11-01), Root, Jr.
F. E. Nathanson, Frequency Agility for Radar Target Detection and Tracking, APL Technical Digest, vol. 9, No. 6, Jul.-Aug. 1970, pp. 2-8.

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