Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tianzhu Qiao"'
Autor:
Lin Cheng, Tianzhu Qiao
Publikováno v:
IET Communications. 13:1482-1487
Indoor localisation has become increasingly important for many services. When the environment is not crowded, i.e. most links between the target and anchors do not suffer from non-line-of sight (NLOS) offsets, the centralised time-difference-of-arriv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::223e1a3a174ed8f7c05258f39d1a0ce1
https://doi.org/10.1049/iet-com.2018.5849
https://doi.org/10.1049/iet-com.2018.5849
Autor:
Tianzhu Qiao, Lin Cheng
Publikováno v:
IEEE Transactions on Intelligent Transportation Systems. 17:3629-3634
Vehicular ad hoc networks represent a promising solution to vehicle navigation in parking lots. Many proposed architectures so far rely upon the roadside units (RSUs) around the parking lot for localization purposes. In this paper, we present a parke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08224c8db83948c054ab32f089793d10
https://doi.org/10.1109/tits.2016.2547987
https://doi.org/10.1109/tits.2016.2547987
Publikováno v:
Medicine
In recent years, deep venous thrombosis (DVT) after spine surgery has received extensive attention, but perioperative prevalence of DVT in patients undergoing percutaneous kyphoplasty (PKP) is lacking. To assess the perioperative prevalence of deep v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c617e7c181f41ed7b647a5101a0f2d2d
https://doi.org/10.1097/md.0000000000019402
https://doi.org/10.1097/md.0000000000019402
Autor:
Lin Cheng, Tianzhu Qiao
Publikováno v:
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
Non-line-of sight (NLOS) radio signal propagation can cause significant localization errors in centralized indoor localization systems. While a distributed localization system could effectively identify NLOS propagation, it usually requires more powe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::192b0726afd2376f2ce3c086e98815d0
https://doi.org/10.1109/apusncursinrsm.2017.8072743
https://doi.org/10.1109/apusncursinrsm.2017.8072743
Autor:
Huaping Liu, Tianzhu Qiao
Publikováno v:
ICC
The layout of the anchors is one of the major factors that affect the positioning accuracy of timing-based localization systems. Existing anchor layout optimization typically resorts to the use of the Cramer-Rao lower bound (CRLB), which takes all th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caa9f17523e055cfae605dea01ef57d4
https://doi.org/10.1109/icc.2017.7997046
https://doi.org/10.1109/icc.2017.7997046
Publikováno v:
IEEE Wireless Communications Letters. 3:637-640
Time-difference-of-arrival (TDOA) techniques are widely used in high-accuracy positioning systems. The weighted nonlinear least squares (NLLS) algorithm can be used in such systems to estimate the target position. If the range measurement errors can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dd952fdf2aa7027acc1125ea6ea8582
https://doi.org/10.1109/lwc.2014.2364023
https://doi.org/10.1109/lwc.2014.2364023
Autor:
Tianzhu Qiao, Huaping Liu
Publikováno v:
IEEE Communications Letters. 18:1451-1454
Non-line-of-sight (NLOS) propagation is one of the major problems that cause errors in localization systems. There exist many algorithms to reduce NLOS caused errors. Most of these algorithms require ap rioriinformation about the NLOS links, which li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30b7fddb0fa7a035be54795008223973
https://doi.org/10.1109/lcomm.2014.2327952
https://doi.org/10.1109/lcomm.2014.2327952
Autor:
Wencan Fan, Tianzhu Qiao, Yongqing You, Jun Zhang, Jijian Gao, Fan, Wencan, Qiao, Tianzhu, You, Yongqing, Zhang, Jun, Gao, Jijian
Publikováno v:
Medicine; Mar2020, Vol. 99 Issue 10, p1-4, 4p
Autor:
Tianzhu Qiao1, Lin Cheng2
Publikováno v:
IET Communications (Wiley-Blackwell). 2019, Vol. 13 Issue 10, p1482-1487. 6p. 8 Graphs.
Autor:
Huaping Liu, Tianzhu Qiao
Publikováno v:
IEEE Communications Letters. 17:1321-1324
Estimation accuracy and computational complexity are two major areas of consideration for localization system design. For time-of-arrival based systems, the 1st-order method of moments (MOM) least-squares (LS) estimator is simple to implement, but it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9ea71ae8a9fbde79e6ab001eeab705d
https://doi.org/10.1109/lcomm.2013.052413.130734
https://doi.org/10.1109/lcomm.2013.052413.130734