Hybrid FMCW-interferometry radar system in the 5.8 GHz ISM band for indoor precise position and motion detection

Author

Guochao Wang ; Changzhan Gu ; Inoue, Takeru ; Changzhi Li

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

4

Abstract

A hybrid FMCW-interferometry radar sensor is presented. The proposed measurement system incorporates the linear frequency-modulated continuous-wave (FMCW) mode and the continuous wave (CW) interferometry mode. The radar system works in 5.8 GHz ISM band with a bandwidth of 160 MHz. Equipped with a special signal processing method, the hybrid system is capable of detecting absolute distance as well as slow motion. Experiments show that the absolute position detection has an average accuracy of 1.65 cm, and the accuracy of relative motion tracking is better than 2 mm.

Keywords

CW radar; FM radar; radar interferometry; radar signal processing; ISM band; absolute distance; bandwidth 160 MHz; continuous wave interferometry mode; frequency 5.8 GHz; hybrid FMCW-interferometry radar sensor system; indoor precise position; linear frequency-modulated continuous-wave mode; motion detection; relative motion tracking; special signal processing method; Accuracy; Baseband; Chirp; Interferometry; Radar detection; Radar tracking; FMCW; interferometry; localization; motion measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697623

Filename

6697623