METHOD AND APPARATUS FOR MODULATING/DEMODULATING AN FSK SIGNALFSK 신호 변복조 방법 및 장치

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A method and apparatus for modulating/demodulating an FSK signal capable of overcoming a trade-off relationship between a modulation index and a spectral efficiency are disclosed. An apparatus for modulating/demodulating a frequency deviation keying (FSK) signal includes a channel selection-modulator, a phase locked loop, and an output unit. The channel selection-modulator modulates an FSK signal by setting a frequency channel to be used. The phase locked loop generates a desired output frequency ‘fout’ compared to a reference frequency ‘fREF’ by adjusting a frequency division ratio (N+n) with respect to a frequency of the modulated FSK signal. The output unit amplifies the FSK signal having the generated output frequency ‘fout’ and radiating the amplified FSK signal through an antenna. Here, each of the frequency channels is divided into two or more tones, and different frequency channels are allocated between the tones divided into two or
Assignee
KAIST
Country
US (United States)
Application Date
2019-09-25
Application Number
17619353
Registration Date
2023-05-30
Registration Number
11665032
URI
http://hdl.handle.net/10203/307185
Appears in Collection
EE-Patent(특허)
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