Method and apparatus for data transmission using chirped...

Details Method and apparatus for data transmission using chirped... Method and apparatus for data transmission using chirped...

H - Electricity

04

B

325/35

H04B 7/00 (2006.01) H04L 27/10 (2006.01)

Patent

CA 1194129

METHOD AND APPARATUS FOR DATA TRANSMISSION USING CHIRPED FREQUENCY-SHIFT-KEYING MODULATION Abstract of the Disclosure A method for transmission of digital data utilizes a carrier frequency offset in a first frequency direction for a first binary condition, and offset in a second frequency direction for the remaining binary condition, at the start of a bit time interval. The carrier frequency is swept in a preselected frequency direction during each bit time interval, to produce a chirped frequency- shift-keyed waveform in the frequency domain, for trans- mission of each bit of binary data. Frequency-shift- keyed demodulation is utilized at a receiving end, with the receiver synchronized to the transmitter bit time interval, to recover the transmitted digital data. Apparatus for data transmission using this chirped frequency-shift-keyed modulation waveform is disclosed.

410685

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