Fine Synchronization through UWB TH-PPM Impulse Radios

TL;DR

This paper introduces a novel fine timing synchronization algorithm for UWB PPM signals, improving accuracy over existing methods through a two-step process validated by simulations.

Contribution

The paper presents a new fine synchronization algorithm for UWB PPM signals that enhances timing accuracy using a two-step approach with correlation-based methods.

Findings

Improved mean square error in timing estimates.

Effective in both data-aided and non-data-aided modes.

Validated through simulations showing performance gains.

Abstract

In this paper, a novel fine timing algorithm has been tested and developed to synchronize Ultra-Wideband (UWB) signals with pulse position modulation (PPM). By applying this algorithm, we evaluate timing algorithms in both data-aided (DA) and non-data-aided (NDA) modes. Based on correlation operations, our algorithm remains operational in practical UWB settings. The proposed timing scheme consists of two complementary floors or steps. The first floor consists on a coarse synchronization which is founded on the recently proposed acquisition scheme based on dirty templates (TDT). In the second floor, we investigate a new fine synchronization algorithm which gives an improved estimate of timing offset. Simulations confirm performance improvement of our timing synchronization compared to the original TDT algorithm in terms of mean square error.