Combined backscatter and forward scatter radar detection of people
conference paper
A sensor network has been developed consisting of four RF nodes that automatically set up a network organization and synchronize wirelessly. In the system bistatic backscatter and forward scatter radar measurements are combined. For detection of small and slow targets, like humans, suppression of the background including the direct signals between the nodes is crucial. However, measurements have shown that the level of synchronization between the nodes is insufficient for full coherent background subtraction. As a result, detection of small and slow targets based on bistatic backscatter measurements is difficult particularly at short range. Faster moving targets such as cyclists or joggers can be detected. The forward scatter detection of persons traversing the baselines between the nodes is based on amplitude variations of the direct signals and therefore less sensitive to residual synchronization errors. Forward scatter detection of persons crossing the baselines works well even at short range. © 2018 European Microwave Association.
Topics
Forward scatter radarMultistatic radarRadar detection and trackingBackscatteringMultistatic radarsSensor networksSensor nodesSignal detectionTracking radarAmplitude variationsBackground subtractionDirect signalForward-scatter radarMoving targetsNetwork organizationRadar detectionSynchronization errorRadar measurement
TNO Identifier
861687
ISBN
9782874870538
Publisher
Institute of Electrical and Electronics Engineers Inc.
Article nr.
8546646
Source title
2018 15th European Radar Conference, EuRAD 2018, 15th European Radar Conference, EuRAD 2018, 26 September 2018 through 28 September 2018
Pages
166-169
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