Title :
Hardware efficient BPSK and QPSK detector
Author :
Awawadeh, Amjad ; Chander, Shyam Sunder Uma ; Kichenaradjo, Andoche ; Soderstrand, Michael A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma State Univ., Stillwater, OK, USA
Abstract :
A very simple LMS-based adaptive notch filter implemented in FPGAs can be used for carrier recovery of a QPSK signal and for direct detection of a BPSK signal. The key aspect of our paper lies in the alternative approach in the realization of carrier frequency detection or synchronization circuit. The carrier frequency after detection is used in the conventional QPSK detector. Also the demodulator has a simple hardware realization that does not require a reference signal.
Keywords :
adaptive filters; least mean squares methods; notch filters; quadrature phase shift keying; signal detection; synchronisation; BPSK signal detection; FPGA; LMS-based adaptive notch filter; Matlab simulation; QPSK signal; carrier frequency detection circuit; carrier recovery; carrier synchronization circuit; hardware efficient BPSK detector; hardware efficient QPSK detector; Adaptive filters; Adaptive signal detection; Binary phase shift keying; Circuits; Demodulation; Detectors; Field programmable gate arrays; Frequency synchronization; Hardware; Quadrature phase shift keying;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1196946
