Null point elimination using RF phase shifter in continuous-wave Doppler radar system

W. Pan; J. Wang; J. Huangfu; C. Li; L. Ran

doi:10.1049/el.2011.2419

Null point elimination using RF phase shifter in continuous-wave Doppler radar system

W. Pan, J. Wang, J. Huangfu, C. Li, L. Ran

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

A voltage-controlled tunable phase shifter is introduced in the architecture of a microwave Doppler radar to eliminate the null point problem in the non-contact vital sign detection. With a simple control mechanism, the phase of the demodulated signal can be effectively adjusted, providing an opportunity to always lock the radar system to the optimum point. Experiment demonstrates that such a method results in a significant improvement in measurement accuracy.

Original language	English
Pages (from-to)	1196-1198
Number of pages	3
Journal	Electronics Letters
Volume	47
Issue number	21
DOIs	https://doi.org/10.1049/el.2011.2419
State	Published - Oct 13 2011

Access to Document

10.1049/el.2011.2419

Cite this

@article{756f7abcec2745d6bd501fcc3c665e7b,

title = "Null point elimination using RF phase shifter in continuous-wave Doppler radar system",

abstract = "A voltage-controlled tunable phase shifter is introduced in the architecture of a microwave Doppler radar to eliminate the null point problem in the non-contact vital sign detection. With a simple control mechanism, the phase of the demodulated signal can be effectively adjusted, providing an opportunity to always lock the radar system to the optimum point. Experiment demonstrates that such a method results in a significant improvement in measurement accuracy.",

author = "W. Pan and J. Wang and J. Huangfu and C. Li and L. Ran",

year = "2011",

month = oct,

day = "13",

doi = "10.1049/el.2011.2419",

language = "English",

volume = "47",

pages = "1196--1198",

journal = "Electronics Letters",

issn = "0013-5194",

number = "21",

}

TY - JOUR

T1 - Null point elimination using RF phase shifter in continuous-wave Doppler radar system

AU - Pan, W.

AU - Wang, J.

AU - Huangfu, J.

AU - Li, C.

AU - Ran, L.

PY - 2011/10/13

Y1 - 2011/10/13

N2 - A voltage-controlled tunable phase shifter is introduced in the architecture of a microwave Doppler radar to eliminate the null point problem in the non-contact vital sign detection. With a simple control mechanism, the phase of the demodulated signal can be effectively adjusted, providing an opportunity to always lock the radar system to the optimum point. Experiment demonstrates that such a method results in a significant improvement in measurement accuracy.

AB - A voltage-controlled tunable phase shifter is introduced in the architecture of a microwave Doppler radar to eliminate the null point problem in the non-contact vital sign detection. With a simple control mechanism, the phase of the demodulated signal can be effectively adjusted, providing an opportunity to always lock the radar system to the optimum point. Experiment demonstrates that such a method results in a significant improvement in measurement accuracy.

UR - http://www.scopus.com/inward/record.url?scp=84855386352&partnerID=8YFLogxK

U2 - 10.1049/el.2011.2419

DO - 10.1049/el.2011.2419

M3 - Article

AN - SCOPUS:84855386352

SN - 0013-5194

VL - 47

SP - 1196

EP - 1198

JO - Electronics Letters

JF - Electronics Letters

IS - 21

ER -

Null point elimination using RF phase shifter in continuous-wave Doppler radar system

Abstract

Access to Document

Other files and links

Fingerprint

Cite this