Communications: directive radio wave systems and devices (e.g. – Radar ew – Eccm
Patent
1981-10-08
1987-08-18
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Eccm
342 21, G01S 736
Patent
active
046880410
ABSTRACT:
A method and apparatus for detecting a short pulse signal in the presence of an interfering jamming signal wherein the jamming signal is utilized as the local oscillator in a diode mixer when it is received at a sufficiently high level for efficiently mixing with a short pulse signal. When the received jamming level is insufficient to act as a local oscillator, an internal local oscillator signal is coupled to the diode to maintain an efficient mixing operation.
REFERENCES:
patent: 4122452 (1978-10-01), Richmond
Cronson Harry M.
Ross Gerald F.
Levine Seymour
Sperry Corporation
Terry Howard P.
Tubbesing T. H.
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