Frequency hopped wireless communication system and communication

Details Frequency hopped wireless communication system and communication Frequency hopped wireless communication system and communication

1996-04-22

2000-07-04

Luther, William

Pulse or digital communications

Repeaters

Testing

375200, H04K 104

Patent

active

060849053

ABSTRACT:
Communication equipment in a slow frequency hopped communication system employing a multi-level quadrature modulation carries out the AGC operation of a receiver amplifier and the operation of synchronizing the received frequency with a carrier frequency during reception of a first field of a preamble field of a communication frame when the carrier is unmodulated, completes the timing recovery of a received symbol and the synchronization with the timing during reception of a second field of the preamble field of the communication frame when the phase of the carrier is changed every symbol time, and thereafter, modulates an information signal in an information transfer field subsequent to the preamble field of the communication frame.

REFERENCES:
patent: 5029182 (1991-07-01), Cal et al.
patent: 5319801 (1994-06-01), Richey et al.
patent: 5450035 (1995-09-01), Kinoshita
patent: 5537414 (1996-07-01), Takiyasu et al.

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