Memory intensive image sorter and method

Details Memory intensive image sorter and method Memory intensive image sorter and method

1987-06-10

1989-07-25

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342 13, 342 20, 364423, 364514, 364516, 364517, G01S 502, G01S 736, H04K 300, G06K 1500

Patent

active

048518549

ABSTRACT:
An image sorting system such as an airborne defense system for receiving and classifying enemy radar signals according to frequency, azimuth angle of arrival, etc. It employs a RAM that is addressed by the frequency and azimuth values of each received signal. If the addressed storage location in the RAM is empty, a number is assigned and stored there to represent the radar that is producing the received signals. The RAM represents a map of the aircraft's environment. Hash addressing, chaining of overlapping radar signals, pipelining to facilitate the blocking of superfluous pulse Doppler signals, etc. enable rapid reliable sorting and identification of hundreds of radar or other signals in the area.

REFERENCES:
patent: 4025920 (1977-05-01), Reitboeck et al.
patent: 4217580 (1980-08-01), Lowenschuss
Millman, "Microelectronics-Digital and Analog Circuits and Systems", .COPYRGT.1979, pp. 286-288.

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