Abstract: The present invention relates to a system (300) for reducing or cancelling unwanted signals when detecting objects of interest with a detection system (200). The detection system thereby is an antenna based system using two or more receive beams as echo response to an emission signal. The system (300) for reducing or cancelling unwanted signals comprises an input means (310) adapted for obtaining from said antenna system (210) receive signals from a first receive beam and receive signals from at least one second receive beam responsive to the same emission signal. It furthermore comprises a coupling means (320) adapted for coupling the receive signals from the first receive beam to the receive signals from the at least one second receive beam, so as to obtain a detection signal for the objects of interest with suppressed unwanted signal contribution.

Abstract: The present invention relates to a system (300) for reducing or cancelling unwanted signals when detecting objects of interest with a detection system (200). The detection system thereby is an antenna based system using two or more receive beams as echo response to an emission signal. The system (300) for reducing or cancelling unwanted signals comprises an input means (310) adapted for obtaining from said antenna system (210) receive signals from a first receive beam and receive signals from at least one second receive beam responsive to the same emission signal. It furthermore comprises a coupling means (320) adapted for coupling the receive signals from the first receive beam to the receive signals from the at least one second receive beam, so as to obtain a detection signal for the objects of interest with suppressed unwanted signal contribution.

Abstract: A scanning system is described for a two-dimensional sensor array which uses one or more continuous layers of active sensing material. The sensing material can be selected for optimal measurement accuracy, avoiding the constraint of production requirements, for example the selection of manufacturing steps such as screen printing or individual mounting of sensors. Preferably, the sensitive areas can cover the area to be monitored in a substantially complete manner. Preferably, the scanning device for the sensor array produces an electronic rather then a physical isolation between the different sensors to be measured. Furthermore, in order to increase the scanning speed, multiple sensors may be scanned simultaneously until an active area is detected. Once detected the scan can concentrate on this area. In accordance with embodiments of the present invention, the scanning pattern of the sensor array may be changed dynamically to match the application.