Energy efficient signaling strategies for tracking mobile underwater vehicles

Mirza, Diba; Roberts, Paul L. D.; Yi, Jinwang; Schurgers, Curt; Kastner, Ryan; Jaffe, Jules S.

doi:10.1109/ut.2013.6519841

Cited by 6 publications

(6 citation statements)

References 11 publications

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“…Since ToA-TS uses velocity estimates to account for the displacement, it can actually benefit from a lagged signaling scheme. This is in line with our previous findings [4] where a lagged scheme depicted in Figure 1(b) outperformed the scheme where signal transmissions were nearly concurrent in time (as depicted by Figure 1(a)). However, in our earlier work these two signaling schemes were compared when the tracking was done based on distance measurements and time synchronization was performed independent of the tracking.…”

Section: Joint Time Synchronization and Localizationsupporting

confidence: 92%

“…In the first method, the time synchronization was done independent of the position estimation, as described in our earlier work [4]. The results of this method to the experimental data was reported in our previous work [4]. In this paper, we applied our proposed scheme to the experimental data.…”

Section: Resultsmentioning

confidence: 97%

“…The location of the vehicle was estimated from the signal arrival times using three methods. In the first method, the time synchronization was done independent of the position estimation, as described in our earlier work [4]. The results of this method to the experimental data was reported in our previous work [4].…”

Section: Resultsmentioning

confidence: 99%

“…k . The statistics of this error is known from previous experimental characterizations performed in prior work [4] [5]. We model the statistics as a zero mean Gaussian distribution with standard deviation R .…”

Section: Problem Formulationmentioning

confidence: 99%

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ToA-TS: Time of arrival based joint time synchronization and tracking for mobile underwater systems

Mirza

Kastner

et al. 2015

Ad Hoc Networks

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Time synchronization and localization are key requirements for distributed underwater systems consisting of numerous low-cost submersibles. In these systems, submersibles are highly resource constrained and typically have limited acoustic communication capability. We investigate the problem of tracking submersibles that only have the capability of receiving acoustic signals. Traditional Long Base Line (LBL) systems track the location of submersibles by providing a GPS-like infrastructure that consists of a few reference beacons at known locations. In these systems the unknown positions of submersibles are estimated from beacon transmissions using time-di↵erence-of-arrival (TDoA) based localization. As such TDoA makes the key assumption that beacon transmissions occur nearly concurrently in time. While this assumption is ensured in small LBL deployments it does not hold as the size of the system scales up. In this paper we identify scenarios where signals from multiple beacons are significantly lagged in time. We further identify the motion of the submersible between signal arrivals as a key factor that deteriorates the performance of TDoA, when transmissions are not concurrent. To address this problem we propose to track the submersible while performing time-synchronization. Our proposed technique,

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Section: Joint Time Synchronization and Localizationsupporting

confidence: 92%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Problem Formulationmentioning

confidence: 99%

See 2 more Smart Citations

ToA-TS: Time of arrival based joint time synchronization and tracking for mobile underwater systems

Mirza

Kastner

et al. 2015

Ad Hoc Networks

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“…We consider errors greater than a meter to be significant because errors due to noise, surface reflections and refraction and even hardware are expected to be of that order [2] [3]. For this analysis we denote the lag between a pair of signals as δt, the submersible's speed as v, the clock drift as η, and the speed of sound as c.…”

Section: Tdoa Localization With Non-concurrent Signal Arrivalsmentioning

confidence: 99%

Joint time synchronization and tracking for mobile underwater systems

Mirza

Schurgers

et al. 2013

Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems - WUWNet '13

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Time synchronization and localization are key requirements for distributed underwater systems consisting of numerous low-cost submersibles. In these systems, submersibles are highly resource constrained and typically have limited acoustic communication capability. We investigate the problem of time synchronization and tracking for submersibles that only have the capability to receive acoustic signals. Traditional Long Base Line (LBL) systems track the location of submersibles by providing a GPSlike infrastructure that consists of a few reference beacons at known locations. In these systems the unknown positions of submersibles are estimated from beacon transmissions using timedifference-of-arrival (TDoA) based localization. As such TDoA makes the key assumption that beacon transmissions occur nearly concurrently in time. While this assumption is ensured in small LBL deployments it does not hold as the size of the system scales up. In this paper we identify scenarios where signals from multiple beacons are significantly lagged in time. We further identify the motion of the submersible between signal arrivals as a key factor that deteriorates the performance of TDoA, when transmissions are not concurrent. To address this problem we propose to track the submersible while performing timesynchronization. Our proposed technique, called Time of Arrival based Tracked Synchronization (ToA-TS) essentially extends GPS like localization for scenarios where beacon transmissions are not concurrent and submersibles are not capable of two-way communication.

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An environment-friendly spectrum decision strategy for underwater acoustic networks

Yao

Jin

2016

Journal of Network and Computer Applications

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Energy efficient signaling strategies for tracking mobile underwater vehicles

Cited by 6 publications

References 11 publications

ToA-TS: Time of arrival based joint time synchronization and tracking for mobile underwater systems

ToA-TS: Time of arrival based joint time synchronization and tracking for mobile underwater systems

Joint time synchronization and tracking for mobile underwater systems

An environment-friendly spectrum decision strategy for underwater acoustic networks

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