Method and apparatus for the modulation of spread spectrum radio

Details Method and apparatus for the modulation of spread spectrum radio Method and apparatus for the modulation of spread spectrum radio

1991-06-24

1992-10-20

Swann, Tod

Pulse or digital communications

Repeaters

Testing

380 34, H04K 100

Patent

active

051576864

ABSTRACT:
A spread spectrum receiver with filters matched to transmitter chip codes are implemented in digital circuits along with a digital circuit for acquisition and tracking of the arrival times of the chip codes. The digital circuit implementations are used for the noncoherent demodulation of pulse position spread spectrum modulation signals where the pulse is a carrier modulator by a chip code and for the noncoherent demodulation of multiple chip code modulation signals where each information symbol is represented by one of several chip codes modulating a carrier.

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