Research on the Selection of False Targets of Natural Objects in Laser Angle Deception Jamming

Jian-lu HUANG; Tao SHEN; Yang YANG; Bo-xiong FAN

doi:10.3964/j.issn.1000-0593(2022)09-2963-06

Spectroscopy and Spectral Analysis, Volume. 42, Issue 9, 2963(2022)

Research on the Selection of False Targets of Natural Objects in Laser Angle Deception Jamming

Jian-lu HUANG*... Tao SHEN1; *;, Yang YANG1; and Bo-xiong FAN1; |Show fewer author(s)

Author Affiliations

1. Rocket Force University of Engineering, Xi’an 710025, China;

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Figures & Tables(8)

Fig. 1. Relative position of natural features, seeker and laser and relation of angle

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Fig. 2. 3D diagram (a) and top view (b) of interference energy distribution of sand and gravel false targets

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Fig. 3. 3D diagram (a) and top view (b) of interference energy distribution of construction false targets

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Fig. 4. Relationship between terrain inclination and threat angle

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Fig. 5. Fitting result graph

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Table 1. Parameters of BRDF model
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Table 1. Parameters of BRDF model
Types of objects Sand and gravel Construction
k_b 0.156 5 0.088 22
k_r 0.293 0 0.325 0
k_d 0.105 4 0.048 62
a 1.453 1.760
b -37.52 -16.92

Table 2. Threat Angle difference at different ground feature inclination angles
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Table 2. Threat Angle difference at different ground feature inclination angles
θ/(°) θ_d/(°) θ/(°) θ_d/(°) θ/(°) θ_d/(°)
0 90 35 69 68 48
3 88 38 67 71 45
6 86 41 65 74 43
9 84 44 63 77 41
12 82 47 61 80 40
15 80 50 59 83 37
18 79 53 57 85 35
22 76 55 56 87 34
25 75 59 54 90 31
28 73 62 52
32 70 65 50

Table 3. Analysis of fitting results

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Table 3. Analysis of fitting results

Parameters	First-order polynomial	Second-order polynomial	Third-order polynomial	Fourth-order polynomial
Number of undetermined coefficients	2	3	4	5
Undetermined coefficient values	p₁=-0.637 6 p₂=90.46	p₁=-0.000 953 7 p₂=-0.551 p₃=89.2	p₁=-1.856×10^-5 p₂=0.001 565 p₃=-0.640 5 p₄=89.81	p₁=1.573×1 ${0^{-}}^{8}$ p₂=-2.139×10^-5 p₃=0.001 728 p₄=-0.643 6 p₅=89.82
SSE	18.51	6.463	4.074	4.073
R-square	0.998	0.999 3	0.999 6	0.999 6
RMSE	0.798 9	0.480 5	0.388 4	0.395 8

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Jian-lu HUANG, Tao SHEN, Yang YANG, Bo-xiong FAN. Research on the Selection of False Targets of Natural Objects in Laser Angle Deception Jamming[J]. Spectroscopy and Spectral Analysis, 2022, 42(9): 2963

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