Generation of pink noise defined in the audio engineering society standard;

Within a two-band tight-binding model driven by a dc-ac electric field,we investigate the effect of external noise on the transport property of electrons in superlattices.

In this thesis, we investigate the transport properties of an ac driving double-bridged quantum dot arrays coupled to electronic leads with an uniform magnetic field applied perpendicularly on it and the effect of external noise on the dynamical localization of two coupling electrons in an isolated quantum dot array.

This method has some resistibility to external noise.

A comparison between the deterministe description and the behavior of the system under external noise is made.

A comparsion between the deterministic description and the beharior of the systen under external noise is made.

We analyze features of ground shaking signals and radiated noise of moving vehicles on highway using AR model, use hypothesis test to observe difference, discuss the mechanism of the signal, and carry out classification with BP neural networks.

The features of collected radiated noise of driving vehicles were extracted by means of the AR parametric model.

This paper extracted the futures of collected radiated noise of running vehicles by AR model firstly,then opted features by hypothesis test,and carried out classification by BP-NN.