Apparatus and method for modulation classification in wireless communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsChung Sup Kim, Ki Cheol Tae, Kanghee Kim, Heung Yong Kang, Soo-Ho Sohn, Yong-Seok Choi, Jae Ick Choi
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Abstract
An apparatus is used for modulation classification of unknown input signal in a wireless communication system. The apparatus includes a signal classification unit configured to classify the input signal into a PSK signal and an FSK signal and a modulation index decision unit configured to decide a modulation index for the PSK signal and the FSK signal classified by the signal classification unit.
Claims9
An apparatus for modulation classification of unknown input signal in a wireless communication system, the apparatus comprising:
- a signal classification unit configured to classify the input signal into a PSK signal and an FSK signal;
- and
- a modulation index decision unit configured to decide a modulation index for the PSK signal and the FSK signal classified by the signal classification unit,
- wherein the signal classification unit classifies the input signal into the PSK signal and the FSK signal in an SNR condition less than a predetermined value,
- wherein the modulation index decision unit decides the modulation index in the classified PSK-class signal, and
- wherein the modulation index decision unit decides the modulation index by using characteristic of an ACF for the classified PSK-class signal.
A method for modulation classification of unknown input signal in a wireless communication system, the method comprising:
- classifying the input signal into a PSK signal and an FSK signal;
- and
- deciding a modulation index for the classified PSK signal and the classified FSK signal,
- wherein said classifying the input signal includes classifying the input signal into the PSK signal and the FSK signal in an SNR condition less than a predetermined value,
- wherein said deciding a modulation index includes deciding the modulation index in the classified PSK signal, and
- wherein said deciding a modulation index includes deciding the modulation index by using characteristic of an ACF for the classified PSK-class signal.
Dependencies are inferred from the claim text.