Communications: directive radio wave systems and devices (e.g. – Determining velocity – Combined with determining distance
Patent
1990-06-22
1992-04-21
Barron, Jr., Gilberto
Communications: directive radio wave systems and devices (e.g.,
Determining velocity
Combined with determining distance
342115, 342116, G01S 1346, G01S 13524
Patent
active
051072700
ABSTRACT:
Method and apparatus for improving detection ranges of a pulsed radar sys wherein electromagnetic return signal data in range cell order is doppler filtered, digitized and stored in doppler memory channels over multiple scans of an azimuth. The digital doppler data in each doppler memory channel is scan-to-scan integrated over a predetermined number of scans to produce target displays for each possible velocity. The target displays are stored in a velocity memory, which is partitioned into velocity channels, each velocity channel corresponding to one possible velocity. A selector selects the target display having the largest total magnitude as a display signal. The scan-to-scan integrated target displays are not subject to collapsing losses since only target signals plus noise signals will be stored in the doppler memory channel corresponding to the target's velocity.
REFERENCES:
patent: 4364048 (1982-12-01), Waters et al.
patent: 4550318 (1985-10-01), Prengaman et al.
patent: 4556887 (1985-12-01), Exeter
Barron Jr. Gilberto
McDonnell Thomas E.
Miles Edward F.
The United States of America as represented by the Secretary of
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