Grid-search-based hybrid TOA/AOA location techniques for NLOS environments

Authors:
Yaqin Xie;Yan Wang;Pengcheng Zhu;Xiaohu You
Affiliations:
National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;National Mobile Communications Research Laboratory, Southeast University, Nanjing, China;National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
Venue:
IEEE Communications Letters
Year:
2009

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Abstract

For geometrically based single bounce circular model (GBSBCM), a new grid-search based technique is proposed to solve the constraint, nonlinear, under-determined equations for wireless location in non-line-of-sight (NLOS) environments. Under the assumption of relatively small measurement errors of angle of arrival (AOA) and time of arrival (TOA), more accurate location results than those of existing methods can be achieved by searching in the feasible area.