Results 161 to 170 of about 1,673 (220)

FDOA determination of ADS-B transponder signals

2012 Workshop on Sensor Data Fusion: Trends, Solutions, Applications (SDF), 2012
In this paper, we investigate a Frequency Difference of Arrival (FDOA) based localization scenario with a stationary sensor network and one moving emitter. A method for Frequency of Arrival (FOA) determination of ADS-B transponder messages is introduced. The FDOA of a message received at a sensor pair can be calculated from the corresponding FOAs. This
Christian Steffes, Sven Rau
openaire   +1 more source

Motion detection using TDOA and FDOA measurements

IEEE Transactions on Aerospace and Electronic Systems, 2001
A stationary transmitter can be located using two moving receivers using time and frequency difference of arrival (TDOA/FDOA). However, transmitter motion will cause a bias on the FDOA, resulting in inaccurate locations. If motion is detected, the position is known to be inaccurate. This paper contains two algorithms for detecting motion using TDOA and
R.J. Ulman, E. Gerantiotis
openaire   +1 more source

A Closed-Form Solution for Source Localization Using FDOA Measurements Only

IEEE Communications Letters, 2023
This letter focuses on source localization using frequency difference of arrival (FDOA) measurements only. An efficient two-step weighted least square (TSWLS) method is proposed to estimate the unknown source position in closed form.
Yuhao Pei, Xi Li, Le Yang, F. Guo
semanticscholar   +1 more source

A two-step algorithm for locating the emitter by FDOA

IEEE International Conference on Consumer Electronics, 2023
This article considers the technique of emitter localization. The main contribution is an efficient algorithm for locating the fixed emitter based on single sensor by using frequency differences of arrival(FDOA). It is a two-step algorithm. Firstly, FDOA
Hao Xu, Qing Chang, Rongling Lang
semanticscholar   +1 more source

Source Localization Based on FDOA and TDOA With Bounded Sensor Location Errors and Changing Carrier Frequency

IEEE Internet of Things Journal
This study tackles locating a noncooperative source based on passive measurements of multiple sonar sensors, such that every sonar sensor can measure both frequency difference of arrival (FDOA) and time difference of arrival (TDOA) of the source’s sound ...
Jong-Hyup Kim
semanticscholar   +1 more source

Acoustic localization with multi-layer isogradient sound speed profile using TDOA and FDOA

Frontiers of Information Technology & Electronic Engineering, 2023
In the underwater medium, the speed of sound varies with water depth, temperature, and salinity. The inhomogeneity of water leads to bending of sound rays, making the existing localization algorithms based on straight-line propagation less precise.
Dongzhou Zhan, Sitian Wang, Shougui Cai, Huarong Zheng, Wen Xu   +4 more
semanticscholar   +1 more source

Cross-spectral TDOA and FDOA estimation

SPIE Proceedings, 2014
We present methods for accurately estimating and tracking instantaneous frequency and relative time delay of narrowband signal components. These methods are applied to the problem of estimating the location of an emitter from the signal(s) received by one or more receivers.
openaire   +1 more source

Extending MPR for Locating a Moving Object Based on TDOA and FDOA

IEEE International Conference on Acoustics, Speech, and Signal Processing
Modified Polar Representation (MPR) has shown its superiority in integration of near and far field localization for a stationary source. This paper extends the researches and applications of the MPR to moving source, where time difference of arrival ...
Beichuan Tang, Yimao Sun, Xiantao Heng, Yanbing Yang, Liangyin Chen   +4 more
semanticscholar   +1 more source

Target tracking algorithm based on unbiased conversion of TDOA/FDOA measurements

International Conference on Signal Processing Systems
Due to the nonlinear relationship between radar measurements and Cartesian coordinates, tracking with time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements is a challenging problem.
Xinchen Xie, Lin Gao, Ping Wei, Wanchun Li   +3 more
semanticscholar   +1 more source

Joint TDOA-FDOA-based Passive Sensing for LEO Satellites

International Conference on Wireless Communications and Signal Processing
In low earth orbit (LEO) satellite localization, the high velocity of satellites and complex environmental factors often prevent traditional methods from achieving the required realtime positioning accuracy, particularly under high measurement noise or ...
Mingjie Fu, Hangguan Shan, Yue Zhang, Ning Wang, Zhiguo Shi   +4 more
semanticscholar   +1 more source