Lowpass filter with large rejection through the entire W-band

2012 ◽  
Vol 48 (10) ◽  
pp. 577 ◽  
Author(s):  
Z.B. Zhu ◽  
X.Q. Lin ◽  
J.Y. Jin ◽  
Y. Jiang ◽  
Y. Fan
Keyword(s):  
Lowpass Filter ◽  
W Band ◽  
Large Rejection

A practical approach on non-regular sampling and universal demosaicing of raw image sensor data

2020 ◽  
Vol 2020 (1) ◽  
pp. 91-95
Author(s):  
Philipp Backes ◽  
Jan Fröhlich
Keyword(s):  
Image Quality ◽  
Source Code ◽  
Image Sensor ◽  
Sensor Data ◽  
Color Filter ◽  
Lowpass Filter ◽  
Sampling Errors ◽  
Regular Sampling ◽  
Single Sensor ◽  
Similar Image Quality

Non-regular sampling is a well-known method to avoid aliasing in digital images. However, the vast majority of single sensor cameras use regular organized color filter arrays (CFAs), that require an optical-lowpass filter (OLPF) and sophisticated demosaicing algorithms to suppress sampling errors. In this paper a variety of non-regular sampling patterns are evaluated, and a new universal demosaicing algorithm based on the frequency selective reconstruction is presented. By simulating such sensors it is shown that images acquired with non-regular CFAs and no OLPF can lead to a similar image quality compared to their filtered and regular sampled counterparts. The MATLAB source code and results are available at: http://github. com/PhilippBackes/dFSR

Investigation of W-band Diverse-shaped Groove-loaded Folded Waveguide Traveling-wave Tubes

2013 ◽  
Vol 34 (7) ◽  
pp. 1760-1766 ◽  
Author(s):  
Bo Peng ◽  
Jun He ◽  
Ming-guang Huang ◽  
Bao-liang Hao ◽  
Pu-kun Liu
Keyword(s):  
Traveling Wave ◽  
Folded Waveguide ◽  
W Band ◽  
Traveling Wave Tubes

An Analysis of Fully Polarimetric W-Band ISAR Imagery on Seven Scale Model Main Battle Tanks for Use in Target Recognition

2002 ◽  
Author(s):  
Thomas M. Goyette ◽  
Jason C. Dickinson ◽  
Robert H. Giles ◽  
William T. Kersey ◽  
Jerry Waldman ◽  
...  
Keyword(s):  
Target Recognition ◽  
Scale Model ◽  
W Band

scholarly journals W-Band Near-Field Microscope

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 48060-48067 ◽  
Author(s):  
Guangbin Dai ◽  
Guoshuai Geng ◽  
Xiaoxuan Zhang ◽  
Jie Wang ◽  
Tianying Chang ◽  
...  
Keyword(s):  
Near Field ◽  
W Band
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