【作者】 张凯旗； 胡伟东； 刘阳； 赵鹏； 乔石； 檀桢；

【Author】 Zhang Kaiqi;Hu Weidong;Liu Yang;Zhao Peng;Qiao Shi;Tan Zhen;School of Integrated Circuits and Electronics, Beijing Institute of Technology;

【机构】 北京理工大学集成电路与电子学院；

【摘要】 以往受限于测试环境和窄带测量条件,传统的近远场变换算法在计算过程中对距离使用了一定的近似,这导致其适用范围受到了限制。针对这些问题,本文在汉克尔外推算法(Hankel)的基础上,研究了基于球面波环式散射外推技术(Circular Near-field to Far-Field Transformation, CNFFFT)的RCS近远场变换方法,并分别对5个理想散射点组成的散射体和三维建模的复杂扩展散射体,以CNFFFT方法进行近远场变换仿真试验。仿真结果验证了该方法的正确性和有效性。更多还原

【Abstract】 In the past, constrained by test environments and narrowband measurement conditions,traditional near-field to far-field transformation algorithms have used certain approximations in the calculation process for distance, leading to limitations in their applicability range. Addressing these issues, this paper, based on the Hankel extrapolation algorithm, researched the RCS near and far-field transformation method using the Circular Near-field to Far-Field Transformation(CNFFFT). Simulation experiments were conducted using the CNFFFT method on a scattering body composed of five ideal scattering points and a complex extended scatterer modeled in 3D.The simulation results validate the correctness and effectiveness of this method.更多还原