FM-CW Radar ranging system with automatic calibration

Details FM-CW Radar ranging system with automatic calibration FM-CW Radar ranging system with automatic calibration

1979-04-27

1981-01-13

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5SW, G01S 740

Patent

active

042452210

ABSTRACT:
A frequency-modulated continuous wave (FM-CW) ranging system for determining the range of a target includes apparatus which utilizes a target simulating delay line and target illuminating antenna, alternately switched to a difference frequency determining circuit and a scaling device to compensate for undesired changes of the FM modulation waveform.

REFERENCES:
patent: 3599207 (1971-08-01), Foianz
patent: 4008475 (1977-02-01), Johnson
patent: 4106020 (1978-08-01), Johnson

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