A robust double phases hierarchical image registration algorithm is presented which can combine the phase correlation with spectrum cancellation at the range of frequency to achieve high accuracy of subpixel through registration of translated and rotated im.

As most of non-coherent radar on active duty has no or little clutter cancellation ability,whenever flying targets enter the area of ground clutter,it is very difficult for radar to observe targets.

The basic method of adaptive signal processing and the principles of canceling are introduced.

On the characterizations of spectral pair and compatible pair

Dependence of the local medium dielectric constant on the extinction spectrum of silver nanoparticles with DDA method;

According to the principle of correlation detection,an automatic measurement system for extinction ratio of polarizer consisted of monochromator and DSP Lock-in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum.