可交互式相控阵雷达DOA估计仿真系统设计

doi:10.16182/j.issn1004731x.joss.20-1026

摘要/Abstract

摘要：

针对相控阵雷达波达方向（direction of arrival，DOA）估计的仿真、验证和评估等问题，论述了相控阵雷达DOA估计的建模与评估，设计了一个采用交互式操作的实时仿真系统。该仿真系统能进行可交互目标环境、相控阵列和目标探测效能评估模型的建模与仿真，模拟出对实时飞行的目标进行探测时，信号发射、空间传播、回波信号采集以及信号处理等过程，并能对DOA估计结果进行评估，仿真结果验证了该仿真系统的实用性和有效性。该仿真系统的设计为现代战争环境下相控阵雷达的系统设计、目标探测效能评估、装备性能展示、测试与验证奠定了基础。

关键词: 相控阵雷达, 实时仿真系统, 波达方向估计, 交互式操作

Abstract:

For the problem of simulation, evaluation and verification of phased array radar the direction of arrival (DOA) estimation of phased array radar, the modeling and evaluation of phased array radar DOA estimation is discussed. A real-time simulation system based on interactive control is designed. The simulation system can be used to model and simulate the interactive target & environment, phased array and target detection efficiency evaluation model. The signal generation, free space propagation, echo signal acquisition, signal processing and other processes can be simulated during the detection of real-time flying target, and the effect of DOA estimation can be evaluated. Simulation test results verify practicability and validity of the simulation system. The design of this simulation system lays a foundation for the system design, target detection efficiency evaluation, equipment presentation, test and verification of phased array radar in competitive modern warfare environment.

Key words: phased array radar, real-time simulation system, direction of arrival(DOA) estimation, interactive control

中图分类号:

TP391.9

于帆, 罗东琦, 司宾强, 朱纪洪. 可交互式相控阵雷达DOA估计仿真系统设计[J]. 系统仿真学报, 2022, 34(5): 964-977.

Fan Yu, Dongqi Luo, Binqiang Si, Jihong Zhu. Phased Array Radar DOA Estimation Simulation System Designed with Interactive Control[J]. Journal of System Simulation, 2022, 34(5): 964-977.

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输入单元	最小值/(°)	最大值/(°)	速度限界/((°)·s^-1)
升降舵	–25	25	±60
副翼	–21.5	21.5	±80
方向舵	–30	30	±120
前缘襟翼	0	25	±25

序号	参数	数值
1	质量/kg	9 295.44
2	翼展/m	9.144
3	机翼面积/m²	27.87
4	平均气动弦长/m	3.45
5	滚转转动惯量/(kg·m²)	12 874.8
6	俯仰转动惯量/(kg·m²)	75 673.6
7	偏航转动惯量/(kg·m²)	85 552.1
8	发动机角动量/(kg·m²·s^–1)	216.9

序号	指标	ULA 巡逻	ULA机动	URA 巡逻	URA 机动
1	数据完整度	0.99	0.98	0.93	0.91
2	探测覆盖系数	0.88	0.89	0.98	0.99
3	方位角误差	0.76	0.76	0.88	0.88
4	俯仰角误差	-	-	0.87	0.89
5	距离误差	-	-	0.87	0.88
6	速度误差	-	-	0.80	0.81
7	加速度误差	-	-	0.77	0.79
8	探测效能等级	3	3	8	8