A novel procedure of TOA estimation in IR UWB ranging in the presence of NBI

Author

Wen-yan Liu ; Xiao-tao Huang ; Hong Ding

Author_Institution

Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

Volume

3

fYear

2012

fDate

21-25 Oct. 2012

Firstpage

1870

Lastpage

1874

Abstract

Narrowband interference (NBI) is a serious problem in time based ultra wideband (UWB) precise ranging. To suppress it, notch filtering is a practical method. However, the notch filter will distort the desired signal, especially when there are multiple interferences. So when using the matched filter (MF) at the receiver, if we still use the transmitted pulse to match the received signal preprocessed by notch filters, there exist mismatch between the received signal and the template, thus degrading ranging performance. In this study, we use a new template. We pass the transmitted signal through the already designed notch filters and then the output will be the new template. Simulation results verify the effectiveness of NBI suppression by notch filters and the improvement of ranging with the new template.

Keywords

distortion; interference (signal); matched filters; notch filters; radio receivers; time-of-arrival estimation; ultra wideband technology; IR UWB ranging; NBI; TOA estimation; matched filter; narrowband interference; notch filtering; receiver; signal distortion; ultra wideband precise ranging; NBI; UWB ranging; matched filter; notch filter; template; waveform distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing (ICSP), 2012 IEEE 11th International Conference on

Conference_Location

Beijing

ISSN

2164-5221

Print_ISBN

978-1-4673-2196-9

Type

conf

DOI

10.1109/ICoSP.2012.6491945

Filename

6491945