Now showing items 1-4 of 4
Time-delay estimation in dispersed spectrum cognitive radio systems
Time-delay estimation is studied for cognitive radio systems, which facilitate opportunistic use of spectral resources. A two-step approach is proposed to obtain accurate time-delay estimates of signals that occupy multiple ...
A distributed positioning algorithm for cooperative active and passive sensors
The problem of positioning a target node is studied for wireless sensor networks with cooperative active and passive sensors. Two-way time-of-arrival and time-difference-of-arrival measurements made by both active and ...
Positioning algorithms for cooperative networks in the presence of an unknown turn-around time
This paper addresses the problem of single node positioning in cooperative network using hybrid two-way time-of-arrival and time-difference-of-arrival where, the turn-around time at the target node is unknown. Considering ...
Hybrid TW-TOA/TDOA positioning algorithms for cooperative wireless networks
The problem of positioning an unknown target is studied for a cooperative wireless sensor network using hybrid two-way time-of-arrival and time-difference-of-arrival measurements. A maximum likelihood estimator (MLE) can ...