Digital frequency hopping transceiver and method thereof

Details Digital frequency hopping transceiver and method thereof Digital frequency hopping transceiver and method thereof

2005-09-21

2009-06-16

Torres, Juan A (Department: 2611)

Pulse or digital communications

Spread spectrum

Frequency hopping

C375S132000, C375S136000

Reexamination Certificate

active

07548578

ABSTRACT:
The digital frequency-hopping (FH) transceiver and the method thereof can be applied to FH communication system with a short FH time. The transceiver employs a digital signal processing (DSP) in baseband (BB) circuits to implement FH without need to adjusting the RF carrier frequency. Wherein, the digital FH transmitter performs DSP on a digital BB transmission signal to frequency-hop between BB sub-bands corresponding to sub-bands of a channel, converts it into an analog signal, and then modulates the analog signal to the channel sub-bands for transmission. The digital FH receiver then performs carrier demodulation, analog-to-digital conversion and DSP on a received signal to regain the original digital BB transmission signal.

REFERENCES:
patent: 6195383 (2001-02-01), Wishart et al.
patent: 6788729 (2004-09-01), Posti

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