Method of synchronizing spread spectrum radio transmitters

Details Method of synchronizing spread spectrum radio transmitters Method of synchronizing spread spectrum radio transmitters

1994-12-22

1996-06-25

Blum, Theodore M.

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

Directive

Position indicating

G01S 302

Patent

active

055304524

ABSTRACT:
Position determining apparatus including at least one base transmitter/receiver (BTR) station including a base transmitter which periodically transmits timing signals and a plurality of mobile transmitter/receivers (MTR). Each MTR includes a mobile receiver operative to receive timing signals transmitted by at least one base transmitter; synchronization circuitry receiving the timing signals and providing a spread-spectrum frequency-hopping sequence characteristic of the particular MTR; and a mobile transmitter producing a radiated frequency hopped signal responsive to the frequency-hopping sequence and the timing signal.

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