基于研制阶段数据融合的舰炮制导弹药测试性评估方法

doi:10.12305/j.issn.1001-506X.2024.08.20

Abstract

Abstract:

Aiming at the problem of data conflict in the testability evaluation under the condition of small samples, a testability evaluation method of naval gun guided ammunition based on data fusion in the development stage is proposed. Firstly, the source of testability information of naval gun guided ammunition in the development stage is determined, and according to its different characteristics, the Beta distribution parameter conversion method is obtained, and the corresponding basic trust distribution function is constructed by using the corresponding Beta distribution of testability information. Secondly, in order to solve the conflict problem in data fusion, a data fusion weight determination method based on credibility, uncertainty and importance is introduced, and the testability index evaluation results of naval gun guided ammunition are obtained by fusing multi-source testability information. Finally, an example shows that the proposed method can make full use of the multi-source testability information collected in the research and development stage, effectively use the subjective uncertainty information, reduce the data conflict problem, and improve the reliability of the testability index evaluation of naval gun guided ammunition.

Key words: testability evaluation, naval gun guided ammunition, development stage, data fusion

CLC Number:

TJ06
TH707

Wenjian YING, Yusen CHENG, Xuan WANG, Shiyan SUN. Testability evaluation method of naval gun guided ammunition based on data fusion in development stage[J]. Systems Engineering and Electronics, 2024, 46(8): 2730-2737.

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证据	专家1	专家2	…	专家X
E₁	y₁₁	y₁₂	…	y_1X
E₂	y₂₁	y₂₂	…	y_2X
⋮	⋮	⋮	⋮	⋮
E_N	y_N1	y_N2	…	y_NX

研制阶段测试性信息	Beta分布
专家经验信息	(a_E, b_E)
测试性增长试验数据	(a_I, b_I)
可更换单元试验数据	(a_R, b_R)

mass函数	m(H₁)	m(H₂)	m(H₃)
m_E	m_E(H₁)	m_E(H₂)	m_E(H₃)
m_I	m_I(H₁)	m_I(H₂)	m_I(H₃)
m_R	m_R(H₁)	m_R(H₂)	m_R(H₃)

信任分配	m(H₁)	m(H₂)	m(H₃)
m′_E⊕m′_I	m′_EI(H₁)	m′_EI(H₂)	m′_EI(H₃)
m′_E⊕m′_I⊕m′_R	m′_EIR(H₁)	m′_EIR(H₂)	m′_EIR(H₃)

可更换单元名称i	可更换单元试验数据		可更换单元超参数		故障率λ_i
可更换单元名称i	a_i	b_i	n_i	f_i	故障率λ_i
卫星天线	112	21	10	3	0.030
卫星定位模块	108	13	24	2	0.025
地磁传感器	54	5	30	5	0.010
舵机控制器	49	16	8	3	0.020
舵机驱动器	156	22	26	4	0.015
DSP	167	36	50	8	0.025

Testability evaluation method of naval gun guided ammunition based on data fusion in development stage

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mass函数	可信度	不确定度	归一化前融合权重	归一化后融合权重
m_E	0.140 4	0.331 0	0.046 5	0.138 9
m_I	0.421 6	0.294 0	0.123 9	0.370 3
m_R	0.438 0	0.375 0	0.164 3	0.490 8

融合方法	融合结果
融合方法	m(H₁)	m(H₂)	m(H₃)
文献[8]	0.000 000	0.405 612	0.594 388
文献[19]	0.000 025	0.672 153	0.327 822
本文方法	0.000 008	0.025 860	0.974 132

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研制阶段测试性信息	Beta分布
专家经验信息	(305.1, 22.54)
测试性增长试验数据	(118, 19)
可更换单元试验数据	(30.29, 5.84)