Results 101 to 110 of about 5,138,507 (193)

Detection of Subsurface Target Based on FDA-MIMO Radar

open access: yesInternational Journal of Antennas and Propagation, 2018
As a new type of radar, the FDA-MIMO radar has a good improvement on side lobe suppression and target detection performance compared with the conventional MIMO radar. However, the existing researches on FDA-MIMO radar are almost based on far-field.
Qinghua Liu   +3 more
doaj   +1 more source

Palomar Planet-Crossing Asteroid Survey (PCAS) January 1990 - February 1991 [PDF]

open access: yes
Several of our near-Earth asteroid (NEA) discoveries made relatively close approaches to the Earth allowing successful radar observations to be made. Detection of echoes from these asteroids provides otherwise unavailable information about their physical
Helin, Eleanor F.
core   +1 more source

Broadband Interferenceless Perfect Absorption in Hexagonal Boron Nitride and Lithium Fluoride Hyperbolic Metamaterial

open access: yesAdvanced Photonics Research
Interferenceless perfect absorption holds significant promise for applications in photodetection, photovoltaics, and medical diagnostics. In this study, an effective composite metamaterial with nanoscale thickness, composed of hexagonal Boron nitride ...
Muhammad Imran   +6 more
doaj   +1 more source

Review of correlation techniques [PDF]

open access: yes, 1983
Correlation analysis in MST radar to determine the scattered power, Doppler frequency and correlation time for a noisy signal is examined. It is assumed that coherent detection was employed, with two accurately balanced quadrature receiving channels and ...
Bowhill, S. A.
core   +1 more source

Evaluation of aircraft microwave data for locating zones for well stimulation and enhanced gas recovery [PDF]

open access: yes
Imaging radar was evaluated as an adjunct to conventional petroleum exploration techniques, especially linear mapping. Linear features were mapped from several remote sensor data sources including stereo photography, enhanced LANDSAT imagery, SLAR radar ...
Babcock, R.   +7 more
core   +1 more source

Acquisition and use of Orlando, Florida and Continental Airbus radar flight test data [PDF]

open access: yes
Westinghouse is developing a lookdown pulse Doppler radar for production as the sensor and processor of a forward looking hazardous windshear detection and avoidance system.
Eide, Michael C., Mathews, Bruce
core   +1 more source

Full-pulse Multi-jammer Cooperative Jamming Method for Active-passive Radar Composite Detection

open access: yesLeida xuebao
In an increasingly complex electromagnetic environment, the composite detection of active-passive radar, with its excellent complementary advantages, has become an important working mode for enhancing the combat capability and anti-interference ...
Wen JIANG   +6 more
doaj   +1 more source

Communicational Radar Detection Technology

open access: yesLeida xuebao, 2020
With the emergence of stealth and jamming technology, traditional radar systems are facing great challenges in terms of innovation, number, and energy. It is necessary to develop novel detection systems, explore the initiative of cooperative detection, and utilize the dimensions of information to adapt to new air defense operations in the future.
Longfei SHI   +3 more
openaire   +1 more source

Tramway obstacles detection based on information fusion of MMV radar and machine vision

open access: yes物联网学报, 2017
A method of obstacle detection based on information fusion of millimeter wave radar and machine vision sensor was proposed.Firstly,the millimeter wave radar and camera calibration,image and radar realize spatiotemporal data synchronization,the target ...
Guang-yao ZHAI   +5 more
doaj   +2 more sources

Development and performance test of UWB radar life detector for mine borehole rescue

open access: yesMeikuang Anquan
In response to the problem of blocked escape routes and difficulty in determining the location of trapped personnel caused by mining disasters and accidents, based on the principles and characteristics of ultra wideband (UWB) radar life information ...
Xi CHEN, Hu WEN, Yuan HUANG
doaj   +1 more source

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