Simulation And Analysis Of Ship Shape RCS

With the continuous development of radar technology,the vitality of ships under serious threat,in order to improve the survivability of the ship,increase the concealment of the ship and to improve its protection and countermeasures research has very important.Over-the-horizon radar working in short wave band,can monitor target below the horizon,can be used to detect and find stealth weapons and equipment.Normally,if a high frequency HFOTHR ship target can be detected,then the target RCS is generally at the resonance zone.Therefore,this article will be to ship under the X-band and HF-band target RCS of the influencing factors were studied.Ship target is by the multitudinous scattering source consisting of a large,complex scatterer,the scattering source of radar RCS has different contribution to the superstructure straight wall and deck,constitute the dihedral Angle between hull plate is the main source of scattering,some control measures are needed to effectively reduce the radar scattering cross section.Based on ship RCS characteristics were analyzed,and the use of plastic technology is effective in optimization,model of ship is divided into six parts,the original ship model based on single and double stand HFOTHR RCS simulation and analysis,and respectively to shape optimization of each part,realize ship RCS reduction.In all parts of RCS reduction,on the basis of it to become the new model of the ship.Under the condition of complex sea condition,the original model for ships and a simulation optimization model,respectively,under the influence of evaporation duct,the backward scattering field of waveguide height can make the increase in the height of the research in optimization model has good effect of reducing RCS,in under the influence of sea condition,the higher the level of sea condition,the surface roughness,the greater the optimization model of the optimization effect is reduced,surface ships,under the condition of low sea condition of RCS radar frequency less affected,when love sea level rise,with increasing frequency of radar ship RCS is reduced,and in a variety of complex optimization model under the condition of the ship has a certain degree of reducing RCS,shows that the optimization effect is good.