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In order to reduce angle error of satcom station on the metrical vessel, Kaiman filter is used to filter angle-error signals in servo system of satcom station in this paper. Angle-error signal is frequently corrupted by random noise. Kaiman filter based on Singer model, which is a kind of linear minimum variance estimation, is a good tool for denoising the angle-error signal in servo system. Experimental...
A fresh image denoising algorithm using neighboring coefficients of nonsubsampled contourlet transform (NSCT) is presented. NSCT can obtain better results compared to traditional wavelets and contourlet transform due to its outstanding properties. But denoising by NSCT using classical threshold doesn't take account of coefficients correlation. Noise suppressing method presented calculates the hard...
A single optical frequency comb line near 1532.83 nm from an 89 MHz all-fiber oscillator is amplified to perform saturated absorption spectroscopy inside a 12C2H2-filled hollow-core fiber. Noise introduced during optical comb amplification is discussed.
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