Results 21 to 30 of about 2,243 (114)

Compressive Sensing-Based Bandwidth Stitching for Multichannel Microwave Radars

open access: yesSensors, 2020
The problem of obtaining high range resolution (HRR) profiles for non-cooperative target recognition by coherently combining data from narrowband radars was investigated using sparse reconstruction techniques.
Paul Berry   +2 more
doaj   +1 more source

LEO Object’s Light-Curve Acquisition System and Their Inversion for Attitude Reconstruction

open access: yesAerospace, 2020
In recent years, the increase in space activities has brought the space debris issue to the top of the list of all space agencies. The fact of there being uncontrolled objects is a problem both for the operational satellites in orbit (avoiding collisions)
Fabrizio Piergentili   +5 more
doaj   +1 more source

Methods of validation of the ballistic structure of space surveillance system orbital segment

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Space activity brought about the space debris problem that constitutes a threat to active spacecraft. Nowadays the most efficient way of spacecraft protection against space debris is choosing the appropriate orbit parameters to prevent collisions of ...
I. A. Fadin   +2 more
doaj   +1 more source

The Politics of Space and Everyday Surveillance in a Delhi Homelessness Shelter: An Ethnographic Exploration

open access: yesInternational Journal on Homelessness, 2022
In this paper, I offer a unique lens through which to theorize neoliberal governance from the perspective of the politics of space and everyday surveillance in Akash Sadan, a Delhi homeless shelter.
Ragini Saira Malhotra
doaj   +1 more source

COLITECVS – NEW TOOL FOR AUTOMATED REDUCTION OF PHOTOMETRIC OBSERVATIONS

open access: yesOdessa Astronomical Publications, 2017
The capabilities of telescopes allow us to make the plotting of light curves a routine task. This one shifts the main attention of astronomer from the plotting to research.
V. E. Savanevych   +7 more
doaj   +1 more source

On the Slow-Time k-Space and its Augmentation in Doppler Radar Tomography

open access: yesSensors, 2020
Doppler Radar Tomography (DRT) relies on spatial diversity from rotational motion of a target rather than spectral diversity from wide bandwidth signals.
Hai-Tan Tran   +2 more
doaj   +1 more source

New Astronomical Observatory Design for the Detection and Tracking of Satellite Objects: The Satellite Robotic Observatory (SRO)

open access: yesRemote Sensing
Robotic Astronomical Observatories (RAOs) have provided very good results in different research projects in astrophysics/astronomy. Their applications in the detection, tracking, and identification of near-Earth objects have contributed to the ...
Francisco Espartero   +3 more
doaj   +1 more source

Long Baseline Stereovision for Automatic Detection and Ranging of Moving Objects in the Night Sky

open access: yesSensors, 2012
As the number of objects in Earth’s atmosphere and in low Earth orbit is continuously increasing; accurate surveillance of these objects has become important. This paper presents a generic, low cost sky surveillance system based on stereovision.
Vlad Turcu   +3 more
doaj   +1 more source

Book review: Surveillance and Space [PDF]

open access: yesGeographica Helvetica, 2017
No abstract available.
A. Handel
doaj   +1 more source

A Robust Space Target Extraction Algorithm Based on Standardized Correlation Space Construction

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
With the increasing amount of space debris in near-earth space, the surveillance of space has become more crucial to prevent potential space collisions. In an optical surveillance system, a multitude of debris with varying sizes, speeds, and intensities ...
Han Wang   +7 more
doaj   +1 more source

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