Results 21 to 30 of about 700,528 (250)

Multi-Target Tracking AA Fusion Method for Asynchronous Multi-Sensor Networks

open access: yesSensors, 2023
Aiming at the problem of asynchronous multi-target tracking, this paper studies the AA fusion optimization problem of multi-sensor networks. Firstly, each sensor node runs a PHD filter, and the measurement information obtained from different sensor nodes
Kuiwu Wang   +3 more
doaj   +1 more source

Experimental study on the effects of blending PODEn on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard

open access: yesScientific Reports, 2021
To study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODEn), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of ...
Yuwei Zhao   +5 more
doaj   +1 more source

Beam Split Algorithm for Height Measurement With Meter-Wave MIMO Radar

open access: yesIEEE Access, 2021
In order to improve the feasibility of low-elevation height measurement for meter-wave multiple-input multiple-output (MIMO) radar, a virtual sub-array-level beam splitting low-elevation height measurement algorithm is proposed.
Chen Chen   +3 more
doaj   +1 more source

EM Scattering of A Target above Canyon/Valley Environment Based on Composite Rough Surface Modeling Method and Modified SBR-FBSSA Algorithm

open access: yesApplied Sciences, 2023
The composite electromagnetic (EM) scattering characteristics from a target above a canyon/valley environment are significant. Aiming to acquire the composite EM scattering efficiently and accurately, the framework of the canyon/valley environment ...
Yijin Wang   +5 more
doaj   +1 more source

Simulation and analysis of partial pulse remained jamming to HPRF PD radar [PDF]

open access: yesMATEC Web of Conferences, 2022
To solve the problem that the duty cycle of HPRF PD radar is not easy to use the general tow-and-pull jamming, a method of partial pulse remained jamming is proposed.
Sun Zhiyong, Shi Chunjuan, Tian Hailin
doaj   +1 more source

Intelligent Trajectory Prediction Algorithm for Reentry Glide Target Based on Intention Inference

open access: yesApplied Sciences, 2022
Aimed at the problem of the insufficient utilization of intention information and flight data for the trajectory prediction of a reentry glide target, an intelligent trajectory prediction algorithm based on intention inference was proposed.
Mingjie Li   +4 more
doaj   +1 more source

Circularly Polarized Transmissive Meta‐Holograms with High Fidelity

open access: yesAdvanced Photonics Research, 2021
Holography has attracted considerable interest because of its excellent capacity of recording and perfectly reconstructing the target information. The emergence of metasurfaces provides a new medium to code holograms in the subwavelength scale.
Xiaofeng Li   +5 more
doaj   +1 more source

Micro-Doppler Feature Extraction and Recognition Based on Netted Radar for Ballistic Targets

open access: yesLeida xuebao, 2015
This study examines the complexities of using netted radar to recognize and resolve ballistic midcourse targets. The application of micro-motion feature extraction to ballistic mid-course targets is analyzed, and the current status of application and ...
Feng Cun-qian   +3 more
doaj   +1 more source

Forecasting Costs of U.S. Ballistic Missile Defense Against a Major Nuclear Strike

open access: yesDefence and Peace Economics
How many dollars would the United States need to spend on its ballistic missile defense (BMD) for each dollar the attacker spends to launch land-based intercontinental ballistic missiles (ICBMs) armed with nuclear warheads?
Igor Morić, Timur Kadyshev
semanticscholar   +1 more source

Weighted target detector via estimated SNR in a multipath environment

open access: yesThe Journal of Engineering, 2019
Multipath effect cause serious performance degradation in low-altitude target detection. To overcome the negative multipath effect in a low-altitude environment, a novel weighted detector based on the estimated signal-to-noise ratio (ESNR) is proposed ...
Hao Zhou   +3 more
doaj   +1 more source

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