Name
Title | ||
|---|---|---|
A Joint Localization And Synchronization Technique Using Time Of Arrival At Multiple Antenna Receivers |
Abstract | ||
|---|---|---|
In this work, a system scheme is proposed for tracking a radio emitting target moving in two-dimensional space. The localization is based on the use of biased time-of-arrival (TOA) measurements obtained at two asynchronous receivers, each equipped with two closely spaced antennas. By exploiting the multi-antenna configuration and using all the TOA measurements up to current time step, the relative clock bias at each receiver and the target position are jointly estimated by solving a nonlinear least-squares (NLS) problem. To this end, a novel time recursive algorithm is proposed which fully takes advantage of the problem structure to achieve computational efficiency while using orthogonal transformations to ensure numerical reliability. The Cramer-Rao lower bound (CRLB) is also derived as a lower bound on the error in estimating the position and biases. Simulation results show that the mean-squared error (MSE) of the proposed method approaches the CRLB closely. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/ACSSC.2013.6810660 | 2013 ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS |
Keywords | Field | DocType |
Clock bias estimation, localization, recursive nonlinear least squares, synchronization, time of arrival | Cramér–Rao bound,Asynchronous communication,Synchronization,Nonlinear system,Recursion (computer science),Upper and lower bounds,Computer science,Electronic engineering,Multiple antenna,Time of arrival | Conference |
ISSN | Citations | PageRank |
1058-6393 | 1 | 0.35 |
References | Authors | |
4 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Siamak Yousefi | 1 | 86 | 13.41 |
| Xiao-Wen Chang | 2 | 208 | 24.85 |
| Benoît Champagne | 3 | 510 | 67.66 |