Results 171 to 180 of about 1,673 (220)

Analysis of TDOA/FDOA State Estimation Accuracy of Cislunar Objects for Space Situational Awareness

IEEE Aerospace Conference, 2023
This paper demonstrates an innovative approach for cislunar Space Situational Awareness (SSA) by demonstrating state estimation using time difference of arrival (TDOA)/frequency difference of arrival (FDOA) from radio frequency (RF) signals transmitted ...
Kullen W. Waggoner, D. Curtis, Bryan D. Little   +2 more
semanticscholar   +1 more source

Iterative source localization based on TDOA and FDOA measurements

2016 35th Chinese Control Conference (CCC), 2016
In this paper, we address the source localization problem by using time difference of arrival (TDOA) and frequency difference of arrival (FDOA) measurements. The localization problem is formulated as a constrained weighted least-squares (CWLS) problem.
Xiaomei Qu, Lihua Xie, Wenrong Tan
openaire   +1 more source

Bayesian FDOA-Only Localization Under Correlated Measurement Noise: A Low-Complexity Gaussian Conditional-Based Approach

Electronics
This paper presents the Gaussian conditional method (GCM) for the problem of frequency difference of arrival (FDOA)-only source localization under correlated noise. GCM identifies the source position through approximating its posterior distribution using
Wenjun Zhang, Xi Li, Yi Liu, Le Yang, Fucheng Guo   +4 more
semanticscholar   +1 more source

High-precision GPS Signal Tracking Method Based on TDOA/FDOA Phase Fringes

2023 IEEE 2nd International Conference on Electrical Engineering, Big Data and Algorithms (EEBDA), 2023
In order to solve the problems of complex tracking loop structure of traditional GPS receivers, and poor tracking performance in the environment of low Signal-to-Noise Ratio (SNR) and high dynamic, a new GPS signal tracking algorithm based on phase slope
Teng Jiang, Weixuan Cui, Wenxuan Liu
semanticscholar   +1 more source

Post-Newtonian Effects in Geolocation by FDOA

2016
The post-Newtonian terms included in the Frequency Difference of Arrival equation derived here by means of Synge’s world-function are considered to estimate their contribution in the precise Geolocation of passive radio transmitters at rest on the earth surface. Four of these terms are kinematical and the other two are gravitational.
J. M. Gambi, M. M. Tung, J. Clares, M. L. García del Pino   +3 more
openaire   +1 more source

A new TDOA/FDOA-based recursive geolocation algorithm

2010 42nd Southeastern Symposium on System Theory (SSST 2010), 2010
In this paper, geolocation problem using noisy differences in time of arrival (TDOA) and frequency difference of arrival (FDOA) measurements is considered, and a sub-BLUE solution is proposed, a new TDOA/FDOA based recursive geolocation algorithm is also developed. The efficiency of the new algorithms is illustrated with simulation results.
Jiecai Luo, E. Walker, P. Bhattacharya, X. Chen   +3 more
openaire   +1 more source

Performance analysis of joint TDOA and FDOA estimation using integral transforms

Journal of Radio Electronics
In this paper a problem of location and tracking of radiating objects using TDOA is considered. Using cross-ambiguity function is the one of traditional approaches to TDOA estimation in presence of Doppler effect.
D. S. Marychev, O.A. Morozov, A.V. Potapov   +2 more
semanticscholar   +1 more source

TDOA and FDOA Joint Estimation Method for Communication Radiation Sources Based on Generalized Extended Approximation Method and Semi-definite Programming

International Conference on Electrical and Control Engineering, 2023
Aiming at the problem of low accuracy in estimating the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) of communication radiation source signals directly using the cross-ambiguity function method in the passive positioning ...
Gaohui Liu, Gaojie He
semanticscholar   +1 more source

Passive satellite localization using TDOA/FDOA/AOA measurements

IEEE Conference Anthology, 2013
Dual satellite TDOA/FDOA localization scheme has problems of multiple ambiguous solutions and poor localization results in the sub-satellite area along the dual satellite baseline direction. Passive localization using TDOA and FDOA measurements usually does not have direct solution and requires numerical methods to determine the emitter's geolocation ...
null Yang Zheng Bin, null Wang Lei, null Chen Pei Qun, null Lu An Nan   +3 more
openaire   +1 more source

Analysis of Frequency Difference of Arrival (FDoA) Method for Detecting Sound Direction On Gunshot Locater

2025 International Conference on Computer Sciences, Engineering, and Technology Innovation (ICoCSETI)
The Free Papua Movement carried out by the Free Papua Organization OPM is very detrimental to the Indonesian state and the community around the scene of the incident, many detrimental actions such as arson and shooting of civilians and members of the TNI/
Intan Anggreita Sonia Puteri, Risdilah Mimma Untsa, Nilla Rachmaningrum, F. Akbar, Qaanitah Salwa Wirdhani, Alifvian Aria Sasongko   +5 more
semanticscholar   +1 more source