Results 11 to 20 of about 1,168,111 (299)

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   +2 more sources

Research on the Cooperative Passive Location of Moving Targets Based on Improved Particle Swarm Optimization

open access: yesDrones, 2023
Aiming at the cooperative passive location of moving targets by UAV swarm, this paper constructs a passive location and tracking algorithm for a moving target based on the A optimization criterion and the improved particle swarm optimization (PSO ...
Li Hao, Fan Xiangyu, Shi Manhong
doaj   +1 more source

Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics

open access: yesFluids, 2022
Passive acoustic aircraft and wake localization methods rely on the noise emission from aircraft and their wakes for detection, tracking, and characterization.
Arnav Joshi   +2 more
doaj   +1 more source

A New RSSI-based Centroid Localization Algorithm by Use of Virtual Reference Tags [PDF]

open access: yes, 2013
A good design of node location is critical for efficient and effective wireless communications. This paper presents an improved algorithm, in order to solve the low localization accuracy caused by traditional centroid algorithm.
Lu, Joan   +3 more
core   +3 more sources

Passive Indoor Localization with WiFi Fingerprints

open access: yesCoRR, 2021
This paper proposes passive WiFi indoor localization. Instead of using WiFi signals received by mobile devices as fingerprints, we use signals received by routers to locate the mobile carrier. Consequently, software installation on the mobile device is not required. To resolve the data insufficiency problem, flow control signals such as request to send
Minh Tu Hoang   +7 more
openaire   +2 more sources

Localizing wild chimpanzees with passive acoustics

open access: yesEcology and Evolution, 2022
Abstract Localizing wildlife contributes in multiple ways to species conservation. Data on animal locations can reveal elements of social behavior, habitat use, population dynamics, and be useful in calculating population density. Acoustic localization systems (ALS) are a non‐invasive method widely used in the marine sciences but not well established
Anne‐Sophie Crunchant   +2 more
openaire   +4 more sources

Semi-passive UHF-UWB RFID: Architecture and localization performance

open access: yes, 2022
S.52-56In this paper we present an innovative UHF-UWB Radio-Frequency IDentification (RFID) system adopting semi-passive tags, which is capable of overcoming several limitations of available systems while avoiding the use of active devices, ensuring both
Bottazzi, Marco   +7 more
core   +1 more source

Long-range and high-precision localization method for underwater bionic positioning system based on joint active–passive electrolocation

open access: yesScientific Reports, 2023
Active electrolocation organ of weakly electric fish act as a proximity detection system with high accuracy in recognizing object parameters such as size and shape. In contrast, some fish with passive electrolocation organ are able to detect objects at a
Meijiang Hou   +3 more
doaj   +1 more source

Comparison of Direct Intersection and Sonogram Methods for Acoustic Indoor Localization of Persons

open access: yesSensors, 2021
We discuss two methods to detect the presence and location of a person in an acoustically small-scale room and compare the performances for a simulated person in distances between 1 and 2 m.
Dominik Jan Schott   +9 more
doaj   +1 more source

Epidermal Passive RFID Strain Sensor for Assisted Technologies [PDF]

open access: yes, 2014
An epidermal passive wireless strain sensor using RFID tags is presented. The tag is intended to detect eyebrow or neck skin stretch where paraplegic patients have the capability to tweak facial muscles.
Rumens, C.V.   +3 more
core   +1 more source

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