Results 11 to 20 of about 2,797,347 (234)

Radar and optical leonids [PDF]

Atmospheric Chemistry and Physics, 2004
We present joint optical-radar observations of meteors collected near the peak of the Leonid activity in 2002. We show four examples of joint detections with a large, phased array L-band radar and with intensified video cameras.
N. Brosch, D. Polishook, R. Helled, S. Schijvarg, M. Rosenkrantz   +4 more
doaj   +4 more sources

The SIMCA algorithm for processing Ground Penetrating Radar data and its use in landmine detection [PDF]

, 2012
The main challenge of ground penetrating radar (GPR) based land mine detection is to have an accurate image analysis method that is capable of reducing false alarms.
Cockshott, W.P., Anand Sengodan, Sengodan, A., W. Paul Cockshott   +3 more
core   +10 more sources

The dependence of radar target detectability on array weighting function [PDF]

, 2009
Presented at the IET-Radar 2007 Conference Edinburgh 15-18 October 2007This paper describes simulation work to assess the detectability of targets by an airborne fire control radar (FCR) operating in a medium pulse repetition frequency (PRF) mode in ...
Alabaster, Clive M., Hughes, Evan J.
core   +7 more sources

Combined EISCAT radar and optical multispectral and tomographic observations of black aurora [PDF]

, 2008
Black auroras are recognized as spatially well-defined regions within a uniform diffuse auroral background where the optical emission is significantly reduced.
Senior, Andrew, Gustavsson, B., Kosch, Mike J., Brändström, B. U. E., Blixt, E. M., Kavanagh, Andrew J.   +5 more
core   +4 more sources

Developments in target micro-Doppler signatures analysis : radar imaging, ultrasound and through-the-wall radar [PDF]

, 2013
Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Woodbridge, K., Clemente, C., Soraghan, J.J., Balleri, A.   +3 more
core   +5 more sources

How to fuse optical and radar imagery? [PDF]

, 2012
Information extraction from multi-sensor remote sensing imagery is an important and challenging task for many applications such as urban area mapping and change detection.
Palubinskas, Gintautas, Gintautas Palubinskas   +1 more
core   +1 more source

Investigation of the relationship between optical auroral forms and HF radar E region backscatter [PDF]

, 2000
International audienceThe SuperDARN HF radars have been employed in the past to investigate the spectral characteristics of coherent backscatter from L-shell aligned features in the auroral E region.
Milan, S. E., N. Sato, Lester, M., H. Takizawa (7612496), Villain, J.-P., J. -p. Villain, Takizawa, H., M. Lester, N. Sato (7606136), Milan, S.E., S. E. Milan, Stephen E. Milan (7612220), J. P. Villain (7612424), J.-P. Villain, Mark Lester (6477935), Sato, N., H. Takizawa   +16 more
core   +2 more sources

Discrimination of Active False Targets Based on Hermitian Distance for Distributed Multiple-Radar Architectures

IEEE Access, 2019
In a distributed multiple-radar architecture, the spatial scattering properties of targets can be utilized to counter active deception jamming effectively.
Qiang Li, Linrang Zhang, Yu Zhou, Shanshan Zhao, Nan Liu, Juan Zhang   +5 more
doaj   +1 more source

Investigation of different target's micro-vibration feature based on a coherent shot-noise limited LIDAR

The Journal of Engineering, 2019
Light detection and ranging (LIDAR) has facilitated extraordinary advances in various areas such as remote-sensing, topography, atmospheric/ecological environment studies etc.
Chi Xu, Huixin Huang, Linghao Xia, Shen Dong   +3 more
doaj   +1 more source

Estimation of aboveground biomass using optical and radar images (Case study: Nav-e Asalem forests, Gilan) [PDF]

تحقیقات جنگل و صنوبر ایران, 2017
Using remote sensing data is an applied method to estimate above ground biomass. In this study, satellite radar data of ALOS-2, with the full polarization and the optical data of Sentinel-2, has been used to estimate the aboveground biomass in the Nav-e ...
Sasan Vafaei, Javad Soosani, Kamran Adeli, Hadi Fadaei, Hamed Naghavi   +4 more
doaj   +1 more source