NOVEL FEATURES FOR MODULATION RECOGNITION USING AN 8PSK DEMODULATOR

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FARHANG MOHSEN; BAHRAMGIRI HOSEIN; DEHGHANI HAMID

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Journal: SIGNAL AND DATA PROCESSING Year:2016 | Volume:- | Issue:2 (SERIAL 28) Page(s): 3-10

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Title

NOVEL FEATURES FOR MODULATION RECOGNITION USING AN 8PSK DEMODULATOR

Author(s)

FARHANG MOHSEN | BAHRAMGIRI HOSEIN | DEHGHANI HAMID | Issue Writer Certificate

Keywords

AUTOMATIC MODULATION CLASSIFICATIONQ2

FEATURE EXTRACTIONQ2

PATTERN RECOGNITIONQ2

VARIANTS OF QPSKQ2

BAYES CLASSIFIERQ2

Abstract

In this paper a feature-based modulation classification algorithm is developed for discriminating PSK signals. The candidate modulation types are assumed to be QPSK, OQPSK, p/4 DQOSK and 8PSK. The proposed method applies an 8PSK baseband demodulator in order to extract required features from observed symbols. The received signal with unknown modulation type is demodulated by an 8PSK demodulator whose output is considered as a finite state machine with different states and transitions for each candidate modulation. Estimated probabilities of particular transitions constitute the discriminating features. The obtained features are given to a Bayesian classifier which decides on the modulation type of the received signal. The probability of correct classification is computed with different number of observed symbols and SNR conditions by carrying out several simulations. The results show that the proposed method offers more accurate classification compared to previous methods for classifying VARIANTS OF QPSK.

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APA: Copy

FARHANG, MOHSEN, BAHRAMGIRI, HOSEIN, & DEHGHANI, HAMID. (2016). NOVEL FEATURES FOR MODULATION RECOGNITION USING AN 8PSK DEMODULATOR. SIGNAL AND DATA PROCESSING, -(2 (SERIAL 28)), 3-10. SID. https://sid.ir/paper/160719/en

Vancouver: Copy

FARHANG MOHSEN, BAHRAMGIRI HOSEIN, DEHGHANI HAMID. NOVEL FEATURES FOR MODULATION RECOGNITION USING AN 8PSK DEMODULATOR. SIGNAL AND DATA PROCESSING[Internet]. 2016;-(2 (SERIAL 28)):3-10. Available from: https://sid.ir/paper/160719/en

IEEE: Copy

MOHSEN FARHANG, HOSEIN BAHRAMGIRI, and HAMID DEHGHANI, “NOVEL FEATURES FOR MODULATION RECOGNITION USING AN 8PSK DEMODULATOR,” SIGNAL AND DATA PROCESSING, vol. -, no. 2 (SERIAL 28), pp. 3–10, 2016, [Online]. Available: https://sid.ir/paper/160719/en

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