Dynamic interference suppression for chipless wireless sensors: An out-of-band channel estimation approach

Author

Kubina, Bernd ; Mandel, Christian ; Schussler, Martin ; Jakoby, Rolf

Author_Institution

Inst. for Microwave Eng. & Photonics, Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2013

fDate

6-10 Oct. 2013

Firstpage

1015

Lastpage

1018

Abstract

A channel estimation method for chipless wireless RF sensors is presented. The method uses two adjacent frequency bands to estimate and suppress the disturbing signal of a dynamic interferer. Afterwards a correction of the sensor tag´s backscatter signal is achieved. The method has been tested in indoor measurements, where a chipless strain sensor and a metal block as interferer have been deployed. Here, the method has enabled a determination of the sensor´s resonance frequency with an error of less than 11% of the tag´s frequency range.

Keywords

backscatter; channel estimation; electromagnetic wave scattering; indoor communication; interference suppression; microwave measurement; radiofrequency interference; wireless sensor networks; adjacent frequency bands; chipless strain sensor; chipless wireless RF sensors; disturbing signal estimation; disturbing signal suppression; dynamic interference suppression; indoor measurements; metal block; out-of-band channel estimation approach; passive microwave remote sensing; sensor resonance frequency determination; sensor tag backscatter signal correction; Backscatter; Estimation; Interference; Semiconductor device measurement; Sensors; Wireless communication; Wireless sensor networks; Channel estimation; interference suppression; passive microwave remote sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2013 European

Conference_Location

Nuremberg

Type

conf

Filename

6686832