Application of Natural Object False Target in Laser Angle Deception Jamming

Jianlu Huang; Tao Shen

doi:10.3788/LOP202259.0126001

Laser & Optoelectronics Progress, Volume. 59, Issue 1, 0126001(2022)

Application of Natural Object False Target in Laser Angle Deception Jamming

Jianlu Huang^* and Tao Shen

Author Affiliations

School of Nuclear Engineering, Rocket Force University of Engineering, Xi'an , Shanxi 710025, China

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Abstract Get PDF(in Chinese)

Figures & Tables(8)

Fig. 1. Relative position of natural features, seeker and laser and relation of angle. (a) 3D coordinate; (b) side view

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

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

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Fig. 4. Relationship between threat Angle different and ground feature inclination

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Fig. 5. Fitting curves of the four fitting models

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Table 1. Parameters of BRDF model
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Table 1. Parameters of BRDF model
Types of objects $k_{b}$ $k_{r}$ $k_{d}$ $a$ $b$
Sand and gravel 0.1565 0.2930 0.1054 1.453 -37.52
Construction 0.08822 0.3250 0.04862 1.760 -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
$θ_{d} / (°)$ 1 3 5 7 9 10 12 14 16 18 20 23 26 29 31 33 36 39
$Δ θ / (°)$ 0 0 0 1 1 2 3 4 7 8 10 13 15 16 16 15 15 14
$θ_{d} / (°)$ 41 43 45 47 50 52 55 58 61 64 65 68 71 75 80 85 90
$Δ θ / (°)$ 13 12 12 11 9 8 5 4 2 1 0 0 0 0 0 0 0

Table 3. Analysis of fitting results of four fitting models

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Table 3. Analysis of fitting results of four fitting models

Parameters	Sine function	Fourier function	Rational function	Gaussian function
Number of undetermined coefficients	12	10	9	6
Undetermined coefficient values	$\begin{array}{l} a_{1} = 11.28 & b_{1} = 0.03685 \\ c_{1} = 0.3028 & a_{2} = 4.677 \\ b_{2} = 0.1128 & c_{2} = - 2.295 \\ a_{3} = 0.8563 & b_{3} = 0.1781 \\ c_{3} = 3.67 & a_{4} = 0.5958 \\ b_{4} = 0.2648 & c_{4} = 1.036 \end{array}$	$\begin{array}{l} a_{0} = 0.659 & a_{1} = - 6.51 \\ b_{1} = 4.977 & a_{2} = - 0.04002 \\ b_{2} = - 1.831 & a_{3} = 0.3667 \\ b_{3} = - 0.7993 & a_{4} = 0.07362 \\ b_{4} = 0.2792 & w = 0.07213 \end{array}$	$\begin{matrix} \begin{array}{l} p_{1} = 0.5511 & p_{2} = - 40.5 \\ p_{3} = - 3620 & p_{4} = 2.741 e + 05 \\ p_{5} = - 882600 & q_{1} = - 154.5 \\ q_{2} = 8811 & q_{3} = - 218800 \\ q_{4} = 2213000 \end{array} \end{matrix}$	$\begin{array}{l} a_{1} = 14.49 & b_{1} = 27.5 \\ c_{1} = 12.3 & a_{2} = 9.945 \\ b_{2} = 45.32 & c_{2} = 12.24 \end{array}$
SSE	3.112	3.074	3.416	3.854
R-square	0.9974	0.9975	0.9972	0.9965
RMSE	0.3678	0.3507	0.3625	0.385

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Jianlu Huang, Tao Shen. Application of Natural Object False Target in Laser Angle Deception Jamming[J]. Laser & Optoelectronics Progress, 2022, 59(1): 0126001

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