Fast and Low-Complexity Frame-Level Synchronization for Differential Transmitted Reference Receivers

A frame-level synchronization (FLS) algorithm for the UWB differential transmitted-reference (DTR) receiver is designed and analyzed in this paper. In DTR systems, the detector computes the decision statistic by correlating pulses from adjacent frames and summing the contributions from the entire frame of a symbol. Symbol-level synchronization is not enough for data modulation single the position of low duty cycle signal in each frame is still unknown. The algorithm which we proposed has a moderate accuracy but a very low complexity and fast synchronization speed compared with conventional approaches requiring subnanosecond-level accuracy. Detailed analysis of the algorithm is carried out based on our in-depth analysishis.