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The algorithm of tracking and localizing a single rapid moving sound target, based on distributed microphone pairs, is presented in this paper. The time-delay-difference values of each microphone pair can be estimated by the methods of generalized cross-correlation. And then, the distance difference between target and the microphone pair can be calculated. When the target is in the far field of the...
The algorithm of tracking and localizing a single rapid moving sound target, based on double five-elements-cross arrays, is presented in this paper. The four time-delay-difference values of each array can be estimated by the methods of generalized cross-correlation. And then, the azimuth angle can be calculated with the special structure of the array. The distance between the target and the center...
In this paper, a piece-wise approximation for doubly selective channel is presented for improving the structure of the frequency-domain channel gain matrix of OFDM. The proposed model is exploited to simplify the zero-forcing (ZF) equalizer, of which the linearized case is studied and applied to the DVB-H receiver design. The simulation indicates that the developed equalizer enforces considerably...
For the TDS-OFDM-based DTTB system, the receiver is extremely sensitive to the co-channel interference (CCI) introduced by analogue television (TV) service. Utilizing the line synchronization mechanism of analogue TV signal, the CCI is detected by means of the time-domain autocorrelation of the received signal. In this paper, we present a scheme of notch filtering to reject the CCI in the time domain,...
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