半实物射频仿真的误差联合概率密度函数分析

doi:10.12305/j.issn.1001-506X.2022.05.04

系统工程与电子技术 ›› 2022, Vol. 44 ›› Issue (5): 1454-1460.doi: 10.12305/j.issn.1001-506X.2022.05.04

半实物射频仿真的误差联合概率密度函数分析

唐波¹, 刘乃文¹, 马静^2,*, 郭琨毅³, 盛新庆³

1. 北京科技大学计算机与通信工程学院, 北京 100083
2. 北京仿真中心航天系统仿真重点实验室, 北京 100854
3. 北京理工大学集成电路与电子学院射频技术与软件研究所, 北京 100081

收稿日期:2021-05-17 出版日期:2022-05-01 发布日期:2022-05-16
通讯作者: 马静
作者简介:唐波(1978—), 男, 副教授, 博士, 主要研究方向为射频仿真、电子对抗|刘乃文(1996—), 男, 硕士研究生, 主要研究方向为射频仿真|马静(1982—), 女, 高级工程师, 博士, 主要研究方向为射频仿真|郭琨毅(1976—), 女, 教授, 博士, 主要研究方向为雷达目标特性、信息系统仿真|盛新庆(1968—), 男, 教授, 博士, 主要研究方向为电磁仿真
基金资助:
国家自然科学基金(61771052)

Analysis of the joint PDF of the simulation error in the radio frequency simulation system

Bo TANG¹, Naiwen LIU¹, Jing MA^2,*, Kunyi GUO³, Xinqing SHENG³

1. School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. Science and Technology on Special System Simulation Laboratory, Beijing Simulation Center, Beijing 100854, China
3. Institute for Radio Frequency Technology and Software, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China

Received:2021-05-17 Online:2022-05-01 Published:2022-05-16
Contact: Jing MA

摘要/Abstract

摘要：

为了更详尽地描述仿真误差, 对基于三元组的半实物射频仿真的仿真角度误差二维联合概率密度函数(probability density function, PDF)进行了详细研究, 给出了仿真误差的方向性分布。基于重心公式, 在设定馈电幅度相对误差满足高斯分布的基础上, 给出了两个角度方向上的仿真角度误差的联合PDF。结果表明, 三元组对不同方向处的点目标的仿真误差二维联合PDF存在差异; 两个角度方向上的仿真角度误差会存在相关性, 且该相关性会随点目标位置的不同而不同。由于平行于航迹方向与垂直于航迹方向的角度误差对系统的影响不同, 该工作有利于对于半实物射频仿真的等效性进行更精细的评估。

关键词: 三元组, 射频仿真系统, 仿真误差, 概率密度函数

Abstract:

In order to describe the simulation error in more detail, the two-dimensional joint probability density function (PDF) of simulation angle error of hardware in the loop radio frequency simulation based on triples is studied in detail, and the directional distribution of simulation error is given. Based on the center of gravity formula, the joint PDF of simulation angle error in two angular directions is given on the basis that the relative error of feed amplitude satisfies Gaussian distribution. The results show that the two-dimensional joint PDF has different simulation errors for point targets in different directions. The simulation angle errors in the two angular directions will have correlation, and the correlation will vary with the position of the point target. Because the angle errors parallel to and perpendicular to the track have different effects on the system, this work is conducive to a more detailed evaluation of the equivalence of hardware in the radio frequency simulation.

Key words: three-unit-array (TUA), radio frequency simulation system (RFSS), simulation error, probability density function (PDF)

中图分类号:

TN97

唐波, 刘乃文, 马静, 郭琨毅, 盛新庆. 半实物射频仿真的误差联合概率密度函数分析[J]. 系统工程与电子技术, 2022, 44(5): 1454-1460.

Bo TANG, Naiwen LIU, Jing MA, Kunyi GUO, Xinqing SHENG. Analysis of the joint PDF of the simulation error in the radio frequency simulation system[J]. Systems Engineering and Electronics, 2022, 44(5): 1454-1460.

图/表 5

参考文献 21

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半实物射频仿真的误差联合概率密度函数分析

Analysis of the joint PDF of the simulation error in the radio frequency simulation system

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