Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – With laser
Patent
1992-10-07
1993-11-16
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
With laser
342174, 342 54, G01S 740
Patent
active
052627861
ABSTRACT:
A radar test system for producing multiple delayed replicas of a radio frequency radar signal is provided. A laser diode is adapted to receive the radar signal and generate a modulated optical wave signal carrying the radar signal. The modulated optical wave signal passes through a fiber optic delay line. The delayed optical wave signal engages a partially transmissive and reflective assembly wherein a first portion of the optical wave signal is transmitted therethrough and a second portion is reflected back to the laser diode. That portion of the optical wave signal reflected back to the laser diode is amplified therein and subsequently regenerated. The signal transmitted through the partially transmissive and reflective assembly is demodulated to extract the optical wave leaving only the radar signal. In this manner, a series of multiple echoes of the radar signal is produced.
REFERENCES:
patent: 3906500 (1975-09-01), Redman
patent: 3953850 (1976-04-01), Redman
patent: 3962657 (1976-06-01), Redman et al.
patent: 4167328 (1979-09-01), Cross et al.
patent: 4903029 (1990-02-01), Newberg et al.
patent: 5047782 (1991-09-01), Lew et al.
patent: 5177488 (1993-01-01), Wang et al.
patent: 5181036 (1993-01-01), Miler et al.
Mortimer, "Fiber Loop Reflectors", Journal of Lightwave Technology, vol. 6, No. 7, Jul., 1988.
LeDonne Eugene
Sotomayor John B.
Westinghouse Electric Corp.
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