This paper presents a novel indoor localization system using a self-built ultrasonic
transmitter and a receiver. In comparison to commercial localization systems, our ultrasonic …

Abstract 5G-NR New Radio (5G-NR) is destined to revolutionize the wireless
communications as well as user wireless positioning. 5G-NR will be able to offer not only …

The paper presents a simple recursive solution to passive tracking of maneuvering targets
using time difference of arrival (TDOA) measurements. Firstly, an iterative Gauss–Newton …

Location estimation and tracking for the mobile devices have attracted a significant amount
of attention in recent years. The network-based location estimation schemes have been …

Most geolocation methods use only the time difference of arrival for estimating the emitter's
location. In this letter, to obtain the velocity estimate values of an active target, we use the …

Most UAV (unmaned aerial vehicle) systems use GPS signals only to locate the emitter's
position. However GPS signals contain unwanted information contaminated by …

Sažetak This paper proposes a design of an efficient hospital nurse calling system which
combines two types of indoor localization systems. The purpose of the first system is to …

提出了一种在非视距环境中的到达时间差/到达角混合定位方法. 该方法使用了两步卡尔曼滤波.
先用卡尔曼滤波器对到达时间测量值进行预处理, 以消除TOA 测量值中的NLOS 误差 …

Nowadays most of commonly used positioning and location detection systems, accessible
via mobile phones, are usually targeted to open spaces, since adopted technologies are …

Location estimation and tracking for mobile stations have attracted a significant amount of
attention in recent years. Different types of signal sources are considered available to …