Stealthy Cruise Missiles And Radar Target Characteristic Analysis

This paper briefly described the development of stealth cruise missile and the current principal application of stealth technology. The figure stealth technology and the material stealth technology are analysed. And then the theoretical of three-dimensional shape reconstruction method through photograph is described. According to the theory, this article reconstructed one kind of typical stealth missile's three dimensional figure through the picture law, after that this paper discussed the figure design's application in the area of stealth technology. Inviscid compressible flow distribution of AGM137 from low to transonic speed range was calculated using the commercial software-Fluent. Based on the data, lift, drag performance, lift -drag characteristics, and longitudinal stability were analysed as well as the characteristics of flow field about the cruise missile (slender fuselage , large back-swept angle). Principles of radar, RCS basic concepts, and the theory of RCS computing methods were discussed in this paper as well. Several methods of RCS computing arithmetics were compared. This paper also provided some RCS arithmetics for large electrical target. The core algorithms of Feko software , its features, the main steps, the item that user must pay attention to were discussed. And after that this paper used Feko's PO method,which is called physic optical method, to calculate the RCS by many radar frequences when the cruise missile is in several position. In the end, this paper explored some new trends of stealth technology. On the opposite side, this paper afford some methods to discover the stealth cruise missile.