Station Layout Optimization Method and Simulation for Non-cooperative Target in Angle of Arrival Positioning

doi:10.16182/j.issn1004731x.joss.24-0474

Abstract

Abstract:

In the context of angle of arrival (AOA) positioning system for non-cooperative target tracking and positioning, accurately determining true location of the target poses a significant challenge. Conventional station deployment indicators like geometric dilution of precision (GDOP) fail to provide effective guidance for optimization station layout. To address the issue, this study introduces a novel indicator for station optimization and evaluation based on factors that influence positioning accuracy within an angle measurement system. These factors encompass angular differencing, baseline intersection angles, and the observer-target line distance. Moreover, this indicator encompasses the challenges associated with data conformity in "air to air" confrontation scenarios during non-cooperative target tracking and positioning, involving both "trajectory segment to encounter segment" and "carrier to missile" data conformity. The proposed indicator's strength lies in its reliance on the directional vector of motion exhibited by non-cooperative targets, eliminating the need for theoretical trajectory information. By incorporating historical cooperative trajectory data, optimal weights are determined using anadaptive genetic algorithm and applied to position non-cooperative targets effectively, resulting in an improved configuration for station layout. Simulation experiments results have confirmed the effectiveness of the new indicator in cooperative target positioning, while also analyzing its applicability towards two types of biases encountered during non-cooperative target tracking and positioning.

Key words: angle of arrival (AOA) positioning, non-cooperative target, stations layout optimization, indicator construction, simulation optimization

CLC Number:

TP391.9

Ning Yida, Wang Jiongqi, Wei Juhui, Bai Zhenzu, He Zhangming. Station Layout Optimization Method and Simulation for Non-cooperative Target in Angle of Arrival Positioning[J]. Journal of System Simulation, 2025, 37(9): 2287-2300.

Figures/Tables 17

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Table 1

Cooperative ballistic data and the value of each parameter in the simulation

参数		取值
测量时间t		$- 10 : 0.01 : - 5$
下落段 (斜飞段)	x/m	$- 10 t 2 + 990 t + 25 000$
	y/m	$10 t 2 - 990 t$
	z/m	$20 000$
平飞段	x/m	$- 10 t 2 + 990 t + 25 000$
	y/m	$20 000$
	z/m	$10 t 2 - 990 t$
染色体长度		70
种群大小		100
迭代上限		100
$P c 1$		1
$P m 1$		0.5
载机长 $a$ /m		14
载机宽 $b$ /m		12
载机高 $c$ /m		2

Table 1

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