Wireless camera network demonstration for launcher applications based on IR-UWB

Abstract

Sensor networks based on Impulse-Radio Ultra Wideband (IR-UWB) technology have gained traction in fields where precise localization and robust communication links are required. In spacecraft and launchers these networks can be used to connect sensors to a central on board computer or to provide a communication link between the different subsystems. This contributes to a reduced cable harness, a key driver in overall spacecraft mass and design complexity. This paper presents an application for a launcher mounted multi-camera system based on low power IR-UWB sensor nodes. In combination with a modified high-throughput MAC layer from the IEEE 802.15.4 standard it is able to provide an update rate of multiple frames per second, where traditional sensor network systems would need half a minute to deliver a single frame. In addition, it is not interfering with critical telecommand/telemetry radio links of the launch vehicle due to the nature of the wideband transmission.