Slant-Range Detection in the Visible Wavelength

2003 ◽  
Author(s):  
Douglas L. Westphal
Keyword(s):  
Slant Range ◽  
Visible Wavelength

Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Ag Alloy Mirror

2012 ◽  
Vol 132 (2) ◽  
pp. 25-30 ◽  
Author(s):  
Nozomu Hirokubo ◽  
Hiroshi Komatsu ◽  
Nobuaki Hashimoto ◽  
Makoto Sonehara ◽  
Toshiro Sato
Keyword(s):  
Wavelength Range ◽  
Tunable Filter ◽  
Visible Wavelength ◽  
Visible Wavelength Range ◽  
Fabry Perot

Analysis of Effective Slant Range Model Accuracy Based on Low-Earth-Orbital (LEO) Spaceborne SAR

2014 ◽  
Vol 35 (1) ◽  
pp. 56-62
Author(s):  
Bing-ji Zhao ◽  
Xiang-yang Qi ◽  
Hong-jun Song ◽  
Hui Zhou
Keyword(s):  
Model Accuracy ◽  
Slant Range

scholarly journals The Ad Hoc Back-End of the BIRALET Radar to Measure Slant-Range and Doppler Shift of Resident Space Objects

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 577
Author(s):  
Luca Schirru ◽  
Tonino Pisanu ◽  
Angelo Podda
Keyword(s):  
Doppler Shift ◽  
Space Debris ◽  
Ad Hoc ◽  
Low Earth Orbit ◽  
Slant Range ◽  
Radar Systems ◽  
The Earth ◽  
Space Objects ◽  
Resident Space Objects ◽  
Potential Issue

Space debris is a term for all human-made objects orbiting the Earth or reentering the atmosphere. The population of space debris is continuously growing and it represents a potential issue for active satellites and spacecraft. New collisions and fragmentation could exponentially increase the amount of debris and so the level of risk represented by these objects. The principal technique used for the debris monitoring, in the Low Earth Orbit (LEO) between 200 km and 2000 km of altitude, is based on radar systems. The BIRALET system represents one of the main Italian radars involved in resident space objects observations. It is a bi-static radar, which operates in the P-band at 410–415 MHz, that uses the Sardinia Radio Telescope as receiver. In this paper, a detailed description of the new ad hoc back-end developed for the BIRALET radar, with the aim to perform slant-range and Doppler shift measurements, is presented. The new system was successfully tested in several validation measurement campaigns, the results of which are reported and discussed.

Visible-wavelength laser action of ZnCdO∕(Zn,Mg)O multiple quantum well structures

2007 ◽  
Vol 91 (23) ◽  
pp. 231103 ◽  
Author(s):  
S. Sadofev ◽  
S. Kalusniak ◽  
J. Puls ◽  
P. Schäfer ◽  
S. Blumstengel ◽  
...  
Keyword(s):  
Quantum Well ◽  
Multiple Quantum Well ◽  
Laser Action ◽  
Multiple Quantum ◽  
Quantum Well Structures ◽  
Visible Wavelength

scholarly journals Visible wavelength surface-enhanced Raman spectroscopy from In-InP nanopillars for biomolecule detection

2016 ◽  
Vol 109 (25) ◽  
pp. 253105 ◽  
Author(s):  
B. J. Murdoch ◽  
J. F. Portoles ◽  
S. Tardio ◽  
A. J. Barlow ◽  
I. W. Fletcher ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Biomolecule Detection ◽  
Visible Wavelength ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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