A Multiplierless DC-Blocker for Single-Bit Sigma-Delta Modulated Signals
نویسندگان
چکیده
The DC content in single-bit domain is both undesirable and hard to remove. In this paper we propose a single-bit multiplierless DC-blocker structure. The input is assumed to be sigma-delta modulated bitstream. This DC-blocker is designed using a delta modulator topology with a sigma-delta modulator (SDM) embedded in its feedback path. Its performance is investigated in terms of the overall signal-to-noise ratio, the effectiveness of DC removal, and the stability. The proposed structure is efficient for hardware realisation.
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عنوان ژورنال:
- EURASIP J. Adv. Sig. Proc.
دوره 2007 شماره
صفحات -
تاریخ انتشار 2007