Abstract

This paper deals with the modeling of the over sea radio channel and aims to establish sea turtles localization off the coast of Reunion Island, and also on Europa Island in the Mozambique Channel. In order to model this radio channel, a framework measurement protocol is proposed. The over sea measured channel is integrated to the localization algorithm to estimate the turtle trajectory based on Power of Arrival (PoA) technique compared to GPS localization. Moreover, cross correlation tool is used to characterize the over sea propagation channel. First measurement of the radio channel on the Reunion Island coast combine to the POA algorithm show an error of 18 m for 45% of the approximated points.

Highlights

  • Assessing functional habitats for marine species is critical for conservation and management purposes

  • In a first time we introduce the Power Of Arrival (POA) algorithm used for the experiments we present the first results for the terrestrial experiments

  • To be able to compare the position estimated by the POA algorithm and the Global Position System (GPS) position, a projection of the geographic coordinates need to be done on a two dimensional plan

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Summary

Introduction

Assessing functional habitats for marine species is critical for conservation and management purposes. There are different devices for the marine animal localization available on the market, but they are most often expensive and researchers have no access to the algorithms used to estimate animal positions. To overcome these disadvantages, we have chosen to use several radio modules, associated with different localization algorithms [2] that involve gateways to be placed on the coast. We take into account the radio conditions of the over sea environment, which may be extreme in some cases [4, 5] as waves, wind and sea spray

Benchmark and radio channel measurement
Pt Gt Gr
Findings
Conclusion

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