Stealth Goal Of Millimeter-wave Radiation Characteristics

This paper is an important part of Native Defense scientific research fund task "the control technology for MMW radiation characters of amphibian tanks". Study the radiation characters of stealth objects.First, this paper discusses the modeling and measuring of objects' radiation characters. Then studies the inversion algorithm of retrieving the brightness temperature. The brightness temperature denotes the objects radiation characters. After those models the radiometer antenna temperature of the coating stealth material using the theory of electromagnetic field. This model proposes the quantitative relations among the antenna temperature, material thickness, material relative permittivity and material relative permeability. Based on the model, retrieves the relative permittivity and relative permeability of the coating- material by iterative inversion of a neural network from the measured antenna temperature. At last, analysis the stealth principles to radiometer of 3mm coating stealth material and provides a method to estimate the stealth results.