cross exchange
1.INTRODUCTION :The huge iron structure embodies a more complicated society, while inter-cross setting means co-operation, exchange which is the way that people dealing with each other.
4.In the past when cross-border trade and investment were scarce and commodity exchange ties among countries relatively simple, statistics based on the origin of goods could grossly reflect the division of labour, trade relations and corresponding pattern of interests among countries.
6.Compared with the conventional WVD HT method, due to the linear property of the FRFT, the new method does not have to pay any attention to the cross-term interference,it therefore omits the WVD data exchange from the Cartesian coordinates to the polar coordinates and the two dimensional sweeping process of Hough transform in the WVD HT method, thus it simplifies processing and decreases the computational burden.
