Microprocessor controlled PPI sweep generator with automatic dis

Details Microprocessor controlled PPI sweep generator with automatic dis Microprocessor controlled PPI sweep generator with automatic dis

1980-04-10

1981-12-22

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5DP, G01S 722

Patent

active

043073964

ABSTRACT:
An improved method and apparatus for controlling the display of a plan position indicator radar display are disclosed which result in the elimination of both display flicker and the loss of critical real-time radar return data. The system is clocked by a series of fixed pulses related to the length of the radar beam on the display. Creation of the radar beam is given top system priority. Thereafter, the number of clock pulses allocated for radar beam creation is diminished as necessary to provide time for the display of prestored synthetic display data. The time is taken from a portion of each beam which has been preselected as least critical. Additionally, the beam length based clock pulses are employed to compensate for sweep overlap and in such functions as offset, range scale, and sweep off-scale.

REFERENCES:
patent: 3134974 (1964-05-01), Orenstein
patent: 3543269 (1970-11-01), Dudley
patent: 3789403 (1974-01-01), Dalena et al.
patent: 4126858 (1978-11-01), Wiener

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