TY - JOUR
T1 - A noise-constrained distributed adaptive direct position determination algorithm
AU - Xia, Wei
AU - Xia, Xinglong
AU - Li, Hongbin
AU - Liu, Wei
AU - Hu, Jinfeng
AU - He, Zishu
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - In this work, we consider distributed localization of an emitter using a wireless senor network, where each sensor can, respectively, receive the signal transmitted by the emitter, estimate the noise variance and share information with its neighbors. We propose herein a noise-constrained distributed adaptive direct position determination (NCD-ADPD) algorithm by exploiting the a priori knowledge of the noise variance. The NCD-ADPD algorithm turns out to be a variable step-size extension of the recently proposed distributed adaptive direct position determination (D-ADPD) algorithm. Compared with its predecessor, the NCD-ADPD algorithm is endowed with markedly improved localization performance, which is validated by simulation results, at the cost of a slight increase of computational complexity.
AB - In this work, we consider distributed localization of an emitter using a wireless senor network, where each sensor can, respectively, receive the signal transmitted by the emitter, estimate the noise variance and share information with its neighbors. We propose herein a noise-constrained distributed adaptive direct position determination (NCD-ADPD) algorithm by exploiting the a priori knowledge of the noise variance. The NCD-ADPD algorithm turns out to be a variable step-size extension of the recently proposed distributed adaptive direct position determination (D-ADPD) algorithm. Compared with its predecessor, the NCD-ADPD algorithm is endowed with markedly improved localization performance, which is validated by simulation results, at the cost of a slight increase of computational complexity.
KW - Adaptive direct position determination
KW - Emitter localization
KW - Noise constraint
KW - Variable step-size
UR - http://www.scopus.com/inward/record.url?scp=85008418001&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85008418001&partnerID=8YFLogxK
U2 - 10.1016/j.sigpro.2016.12.028
DO - 10.1016/j.sigpro.2016.12.028
M3 - Article
AN - SCOPUS:85008418001
SN - 0165-1684
VL - 135
SP - 9
EP - 16
JO - Signal Processing
JF - Signal Processing
ER -