Results 51 to 60 of about 141 (120)

Moving target positioning algorithm based on multidimensional scaling analysis from TDOA and FDOA with sensor uncertainties

Cogent Engineering
The problem of moving target localization from range and velocity difference measurements has attracted considerable attention in recent years. In this article, a novel weighted multidimensional scaling (MDS) algorithm is proposed to estimate the ...
Hesham Ibrahim Ahmed
doaj   +1 more source

Moving source geolocation algorithm and performance analysis using dual-satellites sequence measurements and calibration sources

Tongxin xuebao, 2015
The method for locating a moving source on earth using a sequence of time difference of arrival(TDOA)and frequency difference of arrival(FDOA)measurements pairs obtained by dual-satellites was presented in the presence of calibration sources with ...
Ding WANG, Li ZHANG, Ying WU
doaj   +2 more sources

A Collaborative Navigation with Optimal Clustering for Multi-layer Swarm Systems

Guidance, Navigation and Control
This paper presents a cluster-optimized collaborative navigation method for large-scale multi-layer swarm systems, addressing challenges in global navigation satellite system (GNSS)-denied environments.
Rong Wang, Sichen Wang, Quyu Cong, Zhi Xiong, Yuxuan Liu   +4 more
doaj   +1 more source

Satellite Search and Rescue Localization Technology based on Windowed CAF Estimation

Guangtongxin yanjiu
【Objective】With the continuous development of satellite technology, the application of satellites to low coverage areas of ground information networks for personnel search and rescue is becoming increasingly popular.
ZHENG Chao, QU Dexin, ZHANG Gengxin
doaj  

Closed-Form Method for Unified Far-Field and Near-Field Localization Based on TDOA and FDOA Measurements

Remote Sensing
When the near-field and far-field information of a target is uncertain, it is necessary to choose a suitable localization method. The modified polar representation (MPR) method integrates the two scenarios and achieves a unified localization with ...
Weishuang Gong, Xuan Song, Chunyu Zhu, Qi Wang, Yachao Li   +4 more
doaj   +1 more source

Mitigating Ephemeris Uncertainty in LEO Geolocation: An Uncertainty-Aware Weighted Least Squares Method via Dual-Satellite Cumulative TDOA/FDOA Fusion

IEEE Open Journal of the Communications Society
Accurate and robust localization of non-cooperative emitters is a cornerstone capability for modern low Earth orbit. To mitigate localization degradation caused by satellite ephemeris errors, this paper proposes a multi-epoch dual-satellite geolocation ...
Ziming Fan, Kefeng Guo, Jian Cheng, Zhi Lin, Xinyi Zhong, Ali Nauman   +5 more
doaj   +1 more source

A Distributed Low-Degree-of-Freedom Aerial Target Localization Method Based on Hybrid Measurements

Remote Sensing
For real-time detection scenarios such as battlefield reconnaissance and surveillance, where high positioning accuracy is required and receiving station resources are limited, we propose an innovative distributed aerial target localization method with ...
Xiaoshuang Jiao, Jinming Chen, Lifeng Jiang, Weiping Li, Xiaochao Yang, Weiwei Wang, Jun Zhang   +6 more
doaj   +1 more source

Research on a Method of Locating Civil Aviation Radio Interference Sources Based on Time Difference of Arrival and Frequency Difference of Arrival for Four Unmanned Aerial Vehicles. [PDF]

Sensors (Basel), 2023
Zhou C, Zhu X, Xiong R, Hu K, Ouyang F, Huang C, Huang T.   +6 more
europepmc   +1 more source

A Survey of Sound Source Localization and Detection Methods and Their Applications. [PDF]

Sensors (Basel), 2023
Jekateryńczuk G, Piotrowski Z.
europepmc   +1 more source

Improving TDOA Radar Performance in Jammed Areas through Neural Network-Based Signal Processing. [PDF]

Sensors (Basel), 2023
Gotthans J, Gotthans T, Novak D.
europepmc   +1 more source