Coherent radar

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

343 18E, G01S 736, G01S 1334

Patent

active

045381488

ABSTRACT:
A coherent radar including separate transmitting and receiving chains. The transmitting chain includes a master oscillator providing a signal at frequency F0. A multiplier multiplies F0 by a predetermined amount to produce a signal at a frequency F1. A second multiplier multiplies the signal at frequency F1 to produce a signal at frequency F2, F1 and F2 being coherent with F0. A first mixer mixes F1 with F0 and a second mixer mixes F2 with the product of the first mixer to produce a transmission signal. In the receiving chain, a received signal is amplified and filtered and then mixed in a third mixer with the second signal at frequency F2 from the transmitting chain. The mixing product of the third mixer is amplified and filtered and mixed in a fourth mixer with the first signal. The fourth mixer product is then coupled to a processor for producing a radar display.

REFERENCES:
patent: 3121868 (1964-02-01), Hausz et al.
patent: 3163862 (1964-12-01), Jenny
patent: 3713153 (1973-01-01), van Popta
patent: 3725917 (1973-04-01), Sletten et al.
patent: 4142189 (1979-02-01), Gleason
patent: 4271412 (1981-06-01), Glass et al.
patent: 4342998 (1982-08-01), Easter
patent: 4379295 (1983-04-01), Lewis et al.
Gary Blake Jordan, "Comparison of Two Major Classes of Coherent Pulsed Radar Systems", May 1975, vol.-AES-11, No. 3, pp. 363-371, (IEE Transactions on Aerospace and Electronic Systems).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coherent radar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coherent radar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent radar will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2004339

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.