Communications: directive radio wave systems and devices (e.g. – Clutter elimination – Mti
Patent
1986-07-07
1987-08-18
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
Mti
342159, G01S 1352
Patent
active
046880445
ABSTRACT:
A multiple range interval clutter cancellation circuit for MTI radars is disclosed, for assuring cancellation of narrow band clutter in the second or further range interval, while preserving wideband cancellation in the nearer range intervals and economizing on the number of fill pulses. The circuit includes two clutter cancellers. One canceller has a relatively narrow band clutter rejection bandwidth, and effectively a higher number of fill pulses in relation to the clutter rejection bandwidth and effective number of fill pulses for the second canceller. The outputs of the two cancellers are subjected to an AND gate function, such that only targets which pass through the clutter rejection bandwidth of both cancellers are reported as a target. The circuit obtains the elimination of returns from ambiguous range interval clutter with less transmitted energy and time than conventional canceller circuits.
REFERENCES:
patent: 3879729 (1975-04-01), Nevin
patent: 4003052 (1977-01-01), Adelman et al.
patent: 4035799 (1977-07-01), Hsiao
patent: 4042924 (1977-08-01), Evans et al.
patent: 4086592 (1978-04-01), Lewis et al.
patent: 4119962 (1978-10-01), Lewis
patent: 4137532 (1979-01-01), Taylor et al.
patent: 4318099 (1982-03-01), Hsiao
patent: 4390881 (1983-06-01), Lewis et al.
patent: 4450448 (1984-05-01), Albanese et al.
patent: 4489320 (1984-12-01), Lewis et al.
patent: 4496949 (1985-01-01), Giuliano et al.
Hayes, Jr. Donald E.
Hughes Aircraft Company
Karambelas Anthony W.
Runk Thomas A.
Tarcza Thomas H.
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