Results 71 to 80 of about 8,673 (200)

Predicting and Clustering Attitude‐Induced Divergence in Cross‐Array AOA Measurements for LEO Satellites

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Example of cluster identification of attitude configurations to avoid in the attitude space (in terms of angles of roll, pitch and yaw) for a payload composed by a cross antenna array with angle of arrival technology for CubeSats platforms. ABSTRACT Satellite geolocation of radio‐frequency emitters increasingly relies on compact angle‐of‐arrival (AOA ...
Marcello Asciolla, Angela Cratere, Francesco Dell’Olio   +2 more
wiley   +1 more source

Source localization and denoising: a perspective from the TDOA space

, 2016
In this manuscript, we formulate the problem of denoising Time Differences of Arrival (TDOAs) in the TDOA space, i.e. the Euclidean space spanned by TDOA measurements.
Antonacci, Fabio, Bestagini, Paolo, Canclini, Antonio, Compagnoni, Marco, Sarti, Augusto, Tubaro, Stefano   +5 more
core   +1 more source

Localization of electromagnetic radiating sources in the near-field of a uniform circular array [PDF]

, 2006
In this paper we present a parameter estimation problem for practical electromagnetic signals generated by dipóle antennas positioned close to a receiving antenna of uniform circular array (UCA).
Abedin, MJ, Mohan, AS
core   +1 more source

Research on Phase Characteristics of FDA‐AWACS and Direction Finding Mechanism Based on Anti‐Phase Method

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper investigates the phase‐frequency response characteristics of frequency diverse array (FDA) radar on airborne warning and control system (AWACS) platforms and its deception mechanism against interferometric direction finders, aiming to address the vulnerability of AWACS to precise interception by passive direction‐finding systems due to poor ...
Jing Zhang, Bo Wang, Haowei Zhang
wiley   +1 more source

A Tightly Coupled Fusion Positioning Method Based on Particle Filtering With Effective Particle Neighbourhood Attraction Optimisation

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
To address the limitations of existing wireless and inertial navigation systems, this paper proposes a high‐precision integrated positioning scheme based on particle filtering. The method introduces a high‐weight particle neighbourhood attraction mechanism to solve the common issue of particle degeneracy.
Yanbiao Gao, Zhongliang Deng
wiley   +1 more source

A Review of Linear Multilateration Techniques and Applications

IEEE Access
In multilateration, distances between an unknown location and several known points are used to determine the location of the unknown point. Papers on algorithms for multilateration, such as time of arrival (TOA), time difference of arrival (TDOA), and ...
Eric Widdison, David G. Long
doaj   +1 more source

A Direct Localization Method for Coprime Arrays Based on Averaging of Redundant Data of Virtual Array Elements

IET Signal Processing, Volume 2026, Issue 1, 2026.
To address the issue that the traditional direct position determination (DPD) method for coprime arrays (CAs) has limited performance in scenarios with low signal‐to‐noise ratio (SNR) and small quantity of observation data, a progressive optimization method based on the averaging of redundant data from virtual array elements is proposed. This method is
Hongzhen Wang, Ding Wang, Jiexin Yin, Fuquan Nie, Jiajia Guo   +4 more
wiley   +1 more source

Compressive TDOA Estimation Method Based on Amplitude Phase Clustering in Time‐Frequency Domain

IET Signal Processing, Volume 2026, Issue 1, 2026.
In the field of signal processing, modulation signals, including phase shift keying (PSK) and quadrature amplitude modulation (QAM), can significantly enhance the signal‐to‐noise ratio (SNR) through aliasing transmission following clustering and sorting.
Yang Jiao, Changxiong Xia, Jingyu Zhai, Tianyi Xing, Qun Wan, Lyudmila Mihaylova   +5 more
wiley   +1 more source

Reducing Bias for Closed‐Form TDOA Localization in Unified Near‐Field and Far‐Field Model

IET Signal Processing, Volume 2026, Issue 1, 2026.
Bias is a fundamental metric for evaluating the average error of an estimator, where lower bias indicates an estimator closer to the true value. Recent studies on time difference of arrival (TDOA) localization have introduced the modified polar representation (MPR) to unify near‐field and far‐field scenarios, enhancing robustness to the source range ...
Zhongwen Chen, Xinlei Wang, Yimao Sun, Beichuan Tang, Benjian Hao, Yanbing Yang, Liangyin Chen, Li Chai   +7 more
wiley   +1 more source

A method for localization TDOA estimation based on signal‐level fusion and analysis

Electronics Letters
Passive localization using time difference of arrival (TDOA) is one of the common methods for radiated source target localization, and its localization performance depends on the accuracy of TDOA estimation. In many localization scenarios, the signals of
Dexiu Hu, Zewen Wang, Jie Huang, Pangzhe Li   +3 more
doaj   +1 more source