Communications: directive radio wave systems and devices (e.g. – Combined with diverse type radiant energy system – With transmission to a remote station
Patent
1963-07-10
1994-02-22
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Combined with diverse type radiant energy system
With transmission to a remote station
342 25, 342132, 342189, 342352, G01S 1328
Patent
active
052891887
ABSTRACT:
A radar system mounted on a satellite is scanned to provide surveillance of large areas such as the oceans. The transmitter oscillator generates bursts in the frequency range from about 20-250 megacycles. A receiver detects signals reflected from objects in the target area. The receiver enhances the value of recurrent components of selected time interval portions of the received signals. In one embodiment the transmitter bursts are modulated in accordance with a predetermined modulation pattern. The system determines to what extent it corresponds to the predetermined modulation pattern and then enhances the value of the recurrent components of the received signals. The enhancement is of those recurrent components having relative phases which change by substantially uniform increments.
REFERENCES:
patent: 2941202 (1960-06-01), Harris, Jr. et al.
patent: 3046545 (1962-07-01), Westerfield
patent: 3121868 (1964-02-01), Hausz et al.
Ceridian Corporation
Tubbesing T. H.
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