Contribution
Selected System Aspects for the Design of SONAR Nodes in a Multistatic Surveillance Network
* Presenting author
Abstract:
The monitoring of maritime infrastructure has gained attention due to recent events. SONAR systems can be used to protect the underwater area of such infrastructure. These can be configured in various ways with regard to the positioning of transmitting and receiving nodes. The most common variant is the monostatic configuration, in which the transmitter and receiver structure are located in the same position. However, this type of constellation limits the level of monitoring in terms of both range coverage and angular resolution. In particular in environments such as ports, where the coastline is very structured, the disadvantages of such systems come into play when they are operated in isolation. In multistatic systems, several receiver and transmitter nodes are placed in different positions, so that with a favorable constellation of nodes, a larger and better-quality resolution of the monitoring area can be achieved by merging the partial results of all receiver-transmitter pairs. The structure of such a network of nodes is very complex, which is why this study aims to provide an overview of the various levels of the overall system. The system is divided into hardware, signal processing and the underlying network. Solutions for selected aspects are also presented.