A Frequency Compensation Method to Smooth Frequency Fluctuation for Locating Moving Acoustic Sources

2018 ◽  
pp. 365-370
Author(s):  
P. Mo ◽  
X. Wang ◽  
W. Jiang
Keyword(s):  
Compensation Method ◽  
Frequency Fluctuation ◽  
Frequency Compensation ◽  
Acoustic Sources

High-frequency compensation method based on phase decomposition

2021 ◽  
Author(s):  
Xinxin Wang ◽  
Xiaobin Yin ◽  
Zhenchun Li ◽  
Jianguo Song ◽  
Kai Zhang
Keyword(s):  
High Frequency ◽  
Compensation Method ◽  
Phase Decomposition ◽  
Frequency Compensation ◽  
High Frequency Compensation

DCCII based frequency compensation method for three stage amplifiers

2015 ◽  
Vol 69 (1) ◽  
pp. 176-181 ◽  
Author(s):  
Sajjad Shahsavari ◽  
Sadegh Biabanifard ◽  
S. Mehdi Hosseini Largani ◽  
Omid Hashemipour
Keyword(s):  
Compensation Method ◽  
Frequency Compensation

Correction of the contrast transfer function to determine the radial density distribution of frozen-hydrated tobacco mosaic virus

1992 ◽  
Vol 50 (1) ◽  
pp. 536-537
Author(s):  
Michael F. Smith ◽  
John P. Langmore
Keyword(s):  
Transfer Function ◽  
Phase Contrast ◽  
Heavy Atom ◽  
Biological Molecules ◽  
Frequency Compensation ◽  
Contrast Transfer Function ◽  
High Background ◽  
Low Contrast ◽  
Radial Density Distribution ◽  
Excellent Preservation

The purpose of image reconstruction is to determine the mass densities within molecules by analysis of the intensities within images. Cryo-EM offers this possibility by virtue of the excellent preservation of internal structure without heavy atom staining. Cryo-EM images, however, have low contrast because of the similarity between the density of biological material and the density of vitreous ice. The images also contain a high background of inelastic scattering. To overcome the low signal and high background, cryo-images are typically recorded 1-3 μm underfocus to maximize phase contrast. Under those conditions the image intensities bear little resemblance to the object, due to the dependence of the contrast transfer function (CTF) upon spatial frequency. Compensation (i.e., correction) for the CTF is theoretically possible, but implementation has been rare. Despite numerous studies of molecules in ice, there has never been a quantitative evaluation of compensated images of biological molecules of known structure.

Current Reduction Method for Dual Active Bridge Converter in Non-linear Dead-time Compensation Method

2020 ◽  
Vol 140 (3) ◽  
pp. 175-183
Author(s):  
Kengo Kawauchi ◽  
Hayato Higa ◽  
Hiroki Watanabe ◽  
Keisuke Kusaka ◽  
Jun-ichi Itoh
Keyword(s):  
Reduction Method ◽  
Dead Time ◽  
Compensation Method ◽  
Dual Active Bridge ◽  
Non Linear ◽  
Dead Time Compensation ◽  
Current Reduction
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