Title :
I/Q Regeneration Algorithm for Direct Conversion Receiver Using 5-Port Junction
Author :
Cho, Yong-Ho ; Kim, Byung-Wook ; Park, Dong-Jo
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
We introduce a reliable I/Q regeneration algorithm for digital video broadcasting system (DVB-S) using a 5-port junction direct conversion receiver. The DVB-S uses two modulation schemes; QPSK and 8PSK. We propose two cost functions for each modulation scheme. The proposed algorithm utilizes the characteristic of the modulated symbol, so it simplifies the phase-offset compensation problem with low complexity. Simulation results show that bit error rate (BER) of the proposed scheme agrees very well with the theoretical BER for QPSK and 8PSK
Keywords :
digital video broadcasting; error statistics; quadrature phase shift keying; receivers; 5-port junction; 8PSK; BER; I/Q regeneration algorithm; QPSK; bit error rate; digital video broadcasting system; direct conversion receiver; phase-offset compensation problem; Baseband; Bit error rate; Cost function; Digital video broadcasting; Filters; Frequency; Phase modulation; Quadrature phase shift keying; RF signals; Signal processing algorithms;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345828
