noise abroad
4.In this dissertation, the characteristic of LLL video and some image processing algorithm reducing noise and enhancing image are analyzed, which is suitable to DSP system on the base of widely investigation of LLL processing technology research status at home and abroad. On the base of above study, the threshold-part-linear-draw algorithm is improved.
5.According to the development trend of the proximity fuze which initiates at fixed distance above ground abroad, based on the deep analysis of distance determination technique by PN(pseudo noise) code,the scheme of accurate distance determination by PN code is proposed, and its performances are analyzed.
