상세정보
학술지
Blind decision feedback equalization for VSB-based DTV receivers
- 발행일
- 200208
- 출처
- IEEE Transactions on Consumer Electronics, v.48 no.3, pp.602-609
- ISSN
- 0098-3063
- 출판사
- IEEE
- 협약과제
- 02MR3200, 지능형 통합정보방송(SmarTV)기술개발, 김재명
- 초록
- We present novel blind decision feedback equalization algorithms for VSB-based DTV receivers by modifying a stop-and-go dual-mode constant modulus algorithm (SAG DMCMA) and applying a selective feedback (SF) scheme to stop-and-go (SAG) based algorithms. The modification of the SAG DMCMA applies the SAG scheme only to the feedback filter tap update of the DFE, thus reducing the loss of information caused by the SAG policy. The SF scheme, in which we choose the equalizer output or the slicer output for the input of the feedback filter in the DFE according to the SAG flag, diminishes error propagation and thus improves convergence performance. Considering VSB modulation and RF-band effects with the baseband-equivalent VSB channel model in our simulations raises the reliability of our results for practical applications.
- KSP 제안 키워드
- Constant Modulus Algorithm(CMA), Convergence performance, DTV receivers, Dual-Mode, channel model, decision feedback equalization(DFE), equalization algorithms, error propagation, loss of information, practical application, stop-and-go