Resolution Improvement in Sonar Using Deconvolution Filtering

1992 ◽  
pp. 909-913 ◽  
Author(s):  
Andrzej Dyka ◽  
Marek Moszyński
Keyword(s):  
Resolution Improvement

Picosecond Single-Photon and Femtosecond Two-Photon Pulsed Laser Stimulation for IC Characterization and Failure Analysis

2009 ◽  
Author(s):  
V. Pouget ◽  
E. Faraud ◽  
K. Shao ◽  
S. Jonathas ◽  
D. Horain ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Single Photon ◽  
Pulsed Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Laser Stimulation ◽  
Two Photon ◽  
Resolution Improvement ◽  
Ultrashort Laser

Abstract This paper presents the use of pulsed laser stimulation with picosecond and femtosecond laser pulses. We first discuss the resolution improvement that can be expected when using ultrashort laser pulses. Two case studies are then presented to illustrate the possibilities of the pulsed laser photoelectric stimulation in picosecond single-photon and femtosecond two-photon modes.

Nonlinear resolution improvement and second‐harmonic generation of a pressurized superfluid4He acoustic microscope

1991 ◽  
Vol 59 (8) ◽  
pp. 908-910 ◽  
Author(s):  
Koichi Karaki ◽  
Takehiko Saito ◽  
Koichi Matsumoto ◽  
Yuichi Okuda
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Acoustic Microscope ◽  
Resolution Improvement

Micro-scanning system using flat optics for resolution improvement of infrared images

Optik ◽  
2013 ◽  
Vol 124 (16) ◽  
pp. 2292-2297 ◽  
Author(s):  
Xiubao Sui ◽  
Qian Chen ◽  
Guohua Gu
Keyword(s):  
Scanning System ◽  
Infrared Images ◽  
Resolution Improvement

Imaging theory and resolution improvement of two-photon confocal microscopy

2002 ◽  
Vol 45 (11) ◽  
pp. 1468-1478 ◽  
Author(s):  
Tang Zhilie ◽  
Yang Chuping ◽  
Pei Hongjin ◽  
Liang Ruisheng ◽  
Liu Songhao
Keyword(s):  
Confocal Microscopy ◽  
Two Photon ◽  
Resolution Improvement ◽  
Imaging Theory

scholarly journals New p–i–n Si:H imager configuration for spatial resolution improvement

2001 ◽  
Vol 92 (1-3) ◽  
pp. 60-66 ◽  
Author(s):  
Manuela Vieira ◽  
Miguel Fernandes ◽  
João Martins ◽  
Paula Louro Antunes ◽  
António Maçarico ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
Resolution Improvement

Application of complex-trace analysis to seismic data for random-noise suppression and temporal resolution improvement

Geophysics ◽  
2006 ◽  
Vol 71 (3) ◽  
pp. V79-V86 ◽  
Author(s):  
Hakan Karsli ◽  
Derman Dondurur ◽  
Günay Çifçi
Keyword(s):  
Seismic Data ◽  
Trace Analysis ◽  
Noise Suppression ◽  
Single Channel ◽  
Random Noise ◽  
Synthetic Data ◽  
Low Frequency ◽  
Bright Spot ◽  
Phase Information ◽  
Resolution Improvement

Time-dependent amplitude and phase information of stacked seismic data are processed independently using complex trace analysis in order to facilitate interpretation by improving resolution and decreasing random noise. We represent seismic traces using their envelopes and instantaneous phases obtained by the Hilbert transform. The proposed method reduces the amplitudes of the low-frequency components of the envelope, while preserving the phase information. Several tests are performed in order to investigate the behavior of the present method for resolution improvement and noise suppression. Applications on both 1D and 2D synthetic data show that the method is capable of reducing the amplitudes and temporal widths of the side lobes of the input wavelets, and hence, the spectral bandwidth of the input seismic data is enhanced, resulting in an improvement in the signal-to-noise ratio. The bright-spot anomalies observed on the stacked sections become clearer because the output seismic traces have a simplified appearance allowing an easier data interpretation. We recommend applying this simple signal processing for signal enhancement prior to interpretation, especially for single channel and low-fold seismic data.

Sign in / Sign up

Export Citation Format

Share Document