The digital simulation showed that the coupling loop in guidance control system had satisfactory robustness for the disturbance of error slope for radome's aiming line.

The designs cameabout after NASA revealed it was aiming to develop a line of "superplanes" that are faster, larger, quieter - and burn fuel moreefficiently and cleanly than their present counterparts.

This paper has deep ly researched image segmentation. Aiming at the color image with complicated background, a novel method of close contour line extraction is presented.