Distributed UWB MIMO sounding for evaluation of cooperative localization principles in sensor networks

We describe architecture, design, and a novel application of a real-time MIMO UWB channel sounder. The sounder is applied for evaluating of localization principles in distributed sensor networks that are based on UWB radio technology. We assume an application scenario without any supporting infrastructure as it may occur in emergency situations such as fire disasters, earthquakes or terror attacks. At first we discuss the deployment scenario and signal processing principles applied for cooperative sensor node localization and imaging of the propagation environment. Then, we describe the architecture of the UWB MIMO channel sounder. Finally, a measurement example is demonstrated.