Continuous wave adaptive signal processor system

Details Continuous wave adaptive signal processor system Continuous wave adaptive signal processor system

1980-09-29

1982-04-13

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

343 5PN, 375 37, H04K 104

Patent

active

043251382

ABSTRACT:
A spread spectrum carrier wave device, such as an altimeter, is provided having a transmitting antenna in close proximity to the receiving antenna. The reference signals being transmitted are electromagnetically coupled into the receiving system as undesirable signals. When the strength of the undesirable signals becomes stronger than the desired signals, they mask the desired signals and make them difficult to recover. The undesirable signals are removed from the receiving path by generating a replica of the undesired signals and applying them to an input of an adaptive processor with the signals in the receiving path. After the undesired signals are removed by the process of adaptive nulling, the desirable signals are recovered and processed.

REFERENCES:
patent: 3167766 (1965-01-01), Norris
patent: 3696429 (1972-10-01), Tressa
patent: 4203112 (1980-05-01), Wocher
Albaness and Klein, "Pseudorandom Code Waveform Design for CW Radar", Jan. 1979, pp. 67-75 IEEE Transactions on Aerospace and Electronic Systems.

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