Abstract: The visualizing calculation method of LRCS of multi-material coated complex object is presented. The model containing material information is made by the color flag. The LRCS of the monostatic of an object is calculated by color flag imaging and that of the bistatic is calculated by additional bidirectional shading imaging. Then, the results of LRCS of the object coated with various materials and the paint rubbed off of the surface simulated with the Monte Carlo method are discussed. It is shown that the calculation method is visualized quickly and is practical.

Key words: laser radar cross-section(LRCS), color flag, visualizing calculation, Monte Carlo method