Acquisition of direct-sequence transmitted reference ultra-wideband signals

In this paper, we investigate the timing acquisition problem for transmitted reference (TR) ultra-wideband systems employing direct-sequence (DS) spreading. We show that a two-level DS signaling helps in achieving good acquisition performance. We propose a two-stage acquisition scheme which exploits the TR signal structure to achieve a significant improvement in the mean detection time performance when compared with a conventional single-stage acquisition scheme.

• Type: Journal
• Year: 2006
• Where: JSAC
• Authors: Sandeep R. Aedudodla, Saravanan Vijayakumaran, Tan F. Wong
• Keywords: Acquisition Scheme, JSAC 2006, Timing Acquisition Problem, Two-stage Acquisition Scheme