The advanced TOA trilateration algorithms with performance analysis

摘要: The time of arrival (TOA) trilateration, which is one the representative localization algorithms, estimates location mobile station (MS) based on received signals from at least three base stations (BS). MS determined a single intersecting point circles with radiuses corresponding to distances between and BSs centers BS's coordinates. In general, estimated may not meet point, causing estimation error, because distance BS usually by counting number delay samples, it should be an integer but originally integer, slightly increased. this paper, we present advanced TOA trilateration algorithms for solving above problem, such as line intersection algorithm, has good performance in general case, comparison approach specific case where relatively small circle located inside area two large circles. addition, analytically prove that better estimating than algorithm.