A theoretical model for the spectral evolution of the outbursts in optical and radio wavelength regions from Blazars is discussed.

A shock-in-jet model with prolonged supply is proposed to explain the general behaviour of the spectral evolution of superluminal radio knots.

A formula for the spectrum inversion form a Zoom-FFT spectrum under onto the practical spectrum from which the former is imaged is established and proved.

Then, considering evolving mechanism and characteristics of networks, an evolving pedigree of innovation networks is proposed.

In this paper, we analyzed evolutionary spectrum of chirp signals of time-varying amplitude, and proposed the method of concentrating energy in time-frequency domain to improve the concentration of evolutionary periodogram.

Diagnosis of rotor faults of inductive motors using spectrum zoom analysis method based on wavelet transform;

LFM signal parameter estimation based on spectrum zoom

Since there are some discontinuity points in the amplitude of the vibration signals when the wheelset bearing is abnormal,a method for analyzing the vibration acceleration signals which come from the wheelset bearing by using the spectrum zoom is prsented.

In order to increase the data transmission rate, the spectrum optimization of the data communications with multi-conductor power cable was investigated.

A multi-user spectrum optimization scheme of the downlink broadcast channel in the single-phase power-line environment is discussed.