Calculation and characterization of the impulse response of ultrasonic broad-band transducers

1992 ◽  
Vol 25 (3) ◽  
pp. 154
Author(s):  
A. Lhemery ◽  
D. De Vadder
Keyword(s):  
Impulse Response ◽  
Broad Band

Image quality characterization of fine resolution RISAT-1 data using impulse response function

2018 ◽  
Vol 34 (6) ◽  
pp. 586-596
Author(s):  
Gautam Dadhich ◽  
Shweta Sharma ◽  
Mihir Rambhia ◽  
Aloke K. Mathur ◽  
P. R. Patel ◽  
...  
Keyword(s):  
Image Quality ◽  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Fine Resolution

Broad-band characterization of millimeter-wave log-periodic antennas by photoconductive sampling

1994 ◽  
Vol 42 (3) ◽  
pp. 335-339 ◽  
Author(s):  
M.M. Gitin ◽  
F.W. Wise ◽  
G. Arjavalingam ◽  
Y. Pastol ◽  
R.C. Compton
Keyword(s):  
Millimeter Wave ◽  
Broad Band ◽  
Photoconductive Sampling

scholarly journals Electro-Steering Tapered Fiber-Optic Device with Liquid Crystal Cladding

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Joanna Korec ◽  
Karol A. Stasiewicz ◽  
Olga Strzeżysz ◽  
Przemysław Kula ◽  
Leszek R. Jaroszewicz
Keyword(s):  
Electromagnetic Wave ◽  
Liquid Crystal ◽  
Wavelength Range ◽  
Electromagnetic Wave Propagation ◽  
Fiber Optic ◽  
Broad Band ◽  
Fiber Taper ◽  
Optical Fiber Taper ◽  
Structure Liquid

The paper presents the results of design, manufacturing, and characterization of a hybrid broad band in-line fiber-optic device. It uses nematic liquid crystal as cladding with electro-steering properties in a biconical optical fiber taper structure. Liquid crystal mixtures denoted as 6CHBT and E7 are designed for electric as well as temperature control of electromagnetic wave propagation in a broad wavelength range. The applied taper with 10±0.5 μm diameters has losses lower than 0.5 dB in whole investigated spectrum range. Three kinds of initial liquid crystal molecules’ orientations (parallel, orthogonal, and twist) in relation to the light beam propagating in a taper were applied. The performance of a tuned cladding was studied at an electric field of the range of 0–190 V and the temperature range from 20°C up to 42°C and 59°C for 6CHBT and E7, respectively. The induced reorientation of liquid crystal molecules was measured at a broad wavelength range (550-1550 nm).

Characterization of Antifragility in Cyber Systems Using a Susceptibility Metric

2016 ◽  
Author(s):  
Erich Devendorf ◽  
Kayla Zeliff ◽  
Kamal Jabbour
Keyword(s):  
Engineering Design ◽  
Impulse Response ◽  
Design Practice ◽  
Reliable Systems ◽  
Robust Systems ◽  
Minimum Performance

Traditional engineering design practice seeks to create reliable systems that maintain a desired minimum performance when subjected to a defined set of impulses. To manage impulses, designers implement techniques to specify systems that are resilient or robust to impulses. Resilient systems perform with degraded capacity when subjected to impulses while robust systems remain unaffected by impulses. In this paper we examine antifragility, a complement to resilience and robustness, to manage the impulse response of complex cyber systems. Where fragile systems fracture when subjected to impulses, antifragile systems become stronger. We discuss why this strengthening characteristic makes antifragility attractive for managing impulse response in complex cyber systems and develop a measure for antifragility that differentiates it from fragility, resiliency and robustness. We then discuss an antifragile cyber system to demonstrate the benefits of antifragility in an impulse-rich environment.

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