Results 31 to 40 of about 2,582,612 (303)

Passive Radar Source Localization Based on Cuckoo Search NVTDOA

open access: yesInternational Journal of Antennas and Propagation, 2020
In order to meet the requirement of passive radar source localization in electronic warfare, the concept of the virtual time differences of arrival (VTDOA) is proposed by taking advantage of the characteristics of the same UAV in different positions at ...
Gang Niu, Jie Gao, Tai-hang Du
doaj   +1 more source

Passive Localization for Mixed-Field Moving Sources

open access: yesPolish Maritime Research, 2018
Due to the mobility of underwater equipment, high-precision underwater positioning technology will face two technical challenges: dealing with mixed-field signals composed of near-field signals and far-field signals; adapting to variable component of ...
Gao Chunxian, Liu Hui
doaj   +1 more source

A Novel Joint TDOA/FDOA Passive Localization Scheme Using Interval Intersection Algorithm

open access: yesInformation, 2021
Due to the large measurement error in the practical non-cooperative scene, the passive localization algorithms based on traditional numerical calculation using time difference of arrival (TDOA) and frequency difference of arrival (FDOA) often have no ...
Lingyu Ai   +5 more
doaj   +1 more source

Multi-Person Passive WiFi Indoor Localization With Intelligent Reflecting Surface [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2022
The past years have witnessed increasing research interest in achieving passive human localization with commodity WiFi devices. However, due to the fundamental limited spatial resolution of WiFi signals, it is still very difficult to achieve accurate ...
Ganlin Zhang   +5 more
semanticscholar   +1 more source

Space-Time-Frequency Cooperative Counter Passive Localization for AWACS Based on Cognitive FDA [PDF]

open access: yesHangkong bingqi
This study addresses the critical challenge of balancing electromagnetic concealment and detection efficiency for Airborne Warning and Control System (AWACS) in modern air combat environments.
Zhang Jing, Wang Bo
doaj   +1 more source

A Multi-Static Radar Network with Ultra-Wideband Radio-Equipped Devices

open access: yesSensors, 2020
A growing number of devices, from car key fobs to mobile phones to WiFi-routers, are equipped with ultra-wideband radios. In the network formed by these devices, communicating modules often estimate the channel impulse response to employ a matched filter
Anton Ledergerber, Raffaello D’Andrea
doaj   +1 more source

Direct Position Determination: An Overview

open access: yesLeida xuebao, 2020
Passive localization technology, which intercepts emitter signals and passively determines their positions, has important value in fields such as electronic reconnaissance and search and rescue. The traditional passive localization technology approach, i.
Guizhou WU, Fucheng GUO, Min ZHANG
doaj   +1 more source

Passive Source Localization Using Compressive Sensing

open access: yesSensors, 2019
This paper presents an underwater passive source localization method by forming an underdetermined linear inversion problem. The signal strength on a specified grid is evaluated using sparse reconstruction algorithms by exploiting the spatial sparsity of
Hangfang Zhao   +3 more
doaj   +1 more source

Robust Relative Fingerprinting-Based Passive Source Localization via Data Cleansing

open access: yesIEEE Access, 2018
Recently, source localization is becoming a major research focus. The majority of the existing studies focus on the design of received signal strength (RSS)-based localization methods.
Changju Kan   +4 more
doaj   +1 more source

The Direction of Arrival Location Deception Model Counter Duel Baseline Phase Interferometer Based on Frequency Diverse Array

open access: yesFrontiers in Physics, 2021
With the emergence and development of the passive localization, the radiation source is more visible for the location system which endangers their survival. Therefore, there is an urgent demand for the radio frequency (RF) stealth technology.
Jiaang Ge   +3 more
doaj   +1 more source

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