Blind source separation for convolutive mixture of speech signals has been addressed in many literatures. However, widely applied Multichannel Blind Deconvolution (MBD) method suffers whitening effect or arbitrary filtering problem which results in dramatic decrease of Automatic Speech Recognition system’s performance. In present paper, a new MBD based multistage method is proposed, in which co...

This paper presents a phase-locking-loop-based (PLL-based) charge control scheme to enhance the cross regulation (CR) performance of charge-controlled SIMO Buck DC-DC without freewheel period. By combining PLL structure with traditional scheme, each channel could be regulated by an independent loop. Moreover, gain-adapted pump (GACP) technique is applied for stability in multi-load condition. T...