By numerical simulation,we analyze in detail the propagation of finite-width super-Gaussian background wave and chirped gray soliton superimposed upon finite-width background wave.

SWI files of BPA,scans the equivalent harmonic impedance of AC system and calculates the background harmonics.

This paper presents a new calculating method of the distortions of harmonic current and voltage on PCC considering background harmonics.

Example analysis on the two kinds of power supply plans for railway traction substation access the 110 kV network is taken,including how to consider the harmonic influence between the traction substation s harmonic,power system s background harmonic and each traction substation s harmonic in specific subj.

But when peoplestudy harmonics,they always ignore the background harmonics of power system.

But when people study harmonics,they always ignore the background harmonics of power system.

New background clutter rejection algorithm for dim-point target detection;

Background clutter had its impact on the target signal only through signal processing algorithm.

Based on the classic probability of edge(POE) metrics for quantifying background clutter,and the up-to-date research findings in human visual perception,a new method for modifying NVESD s classic human target acquisition performance wa.

First the images of cloud clutter background with small targets are inhabited with multi-structural opening operation and then the global thresholding method is applied to convert the images into binary ones for the identification of small target.