Target location accuracy analysis on loitering missile platform

Zhaoqing LIU; Fang ZHANG; Lei ZHU; Zhaohui JIA; Jianghua WEN; Chuan QIN; Lanlan ZHANG

doi:10.5768/JAO202243.0401002

Journals >Journal of Applied Optics >Volume 43 >Issue 4 >Page 592 > Article

Journal of Applied Optics
Vol. 43, Issue 4, 592 (2022)

Target location accuracy analysis on loitering missile platform

Zhaoqing LIU, Fang ZHANG^*, Lei ZHU, Zhaohui JIA..., Jianghua WEN, Chuan QIN and Lanlan ZHANG|Show fewer author(s)

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DOI: 10.5768/JAO202243.0401002 Cite this Article

Zhaoqing LIU, Fang ZHANG, Lei ZHU, Zhaohui JIA, Jianghua WEN, Chuan QIN, Lanlan ZHANG. Target location accuracy analysis on loitering missile platform[J]. Journal of Applied Optics, 2022, 43(4): 592 Copy Citation Text

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Fig. 1. Relative position of target and electro-optical system in airborne coordinate system

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Fig. 2. Influence of horizontal positioning error of global positioning system on CEP

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Fig. 3. Influence of course error of inertial navigation system on CEP

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Fig. 4. Influence of rangefinder on CEP

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Fig. 5. Influence of angle measurement error on CEP

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Parameter	error(1σ)	CEP/ m	Influence weight/%	Influence weight/%
Parameter	error(1σ)	CEP/ m	level error=5 m	level error=1 m
Aircraft longitude	5 m	8	15.53	-
	1 m	2.7	-	6.63
Aircraft latitude	5 m	9	17.47	-
	1 m	3.5	-	8.60
INS heading	0.1°	7	13.59	17.19
Rangefinder ranging	1 m	2.7	5.24	6.63
Pitching angle	0.003°	2.35	4.56	5.77
Azimuth angle	0.003°	2.22	4.30	5.45

Table 1. Positioning error and weight analysis caused by each parameter error

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NO	Target longitude/(°)	Target latitude/(°)	Longitude error/(°)	Latitude error/(°)	Longitude absolute error/m	Latitude absolute error/°
1	109.5887998	40.8735036	2.35639E-05	−0.000146545	2.1	15.8
2	109.5887848	40.8734999	8.56389E-06	−0.000150245	0.8	16.2
3	109.5887735	40.8733537	−2.73611E-06	−0.000296445	0.2	32.0
4	109.5887734	40.8733853	−2.83611E-06	−0.000264845	0.3	28.6
5	109.5887800	40.8733433	3.76389E-06	−0.000306845	0.3	33.1
6	109.5887819	40.8733550	5.66389E-06	−0.000295145	0.5	31.9
7	109.5887506	40.8732282	−2.56361E-05	−0.000421945	2.3	45.6
8	109.5887479	40.8732207	−2.83361E-05	−0.000429445	2.6	46.4
9	109.5887313	40.8731303	−4.49361E-05	−0.000519845	4.0	56.1
10	109.5887095	40.8730071	−6.67361E-05	−0.000643045	6.0	69.4

Table 2. Target location error (satellite horizontal positioning error is 5 m)

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NO	Target longitude/(°)	Target latitude/(°)	Longitude error/(°)	Latitude error/(°)	Longitude absolute error/m	Latitude absolute error/m
1	109.5887896	40.8739323	1.33639E-05	0.000282155	1.2	30.5
2	109.5887959	40.8739572	1.96639E-05	0.000307055	1.8	33.2
3	109.5888013	40.8739100	2.50639E-05	0.000259855	2.3	28.1
4	109.5887925	40.8739242	1.62639E-05	0.000274055	1.5	29.6
5	109.5887831	40.8737797	6.86389E-06	0.000129555	0.6	14.0
6	109.5887903	40.8739150	1.40639E-05	0.000264855	1.3	28.6
7	109.5887832	40.8738663	6.96389E-06	0.000216155	0.6	23.3
8	109.5887761	40.8738237	−1.36111E-07	0.000173555	0.0	18.7
9	109.5887634	40.8737240	−1.28361E-05	7.38550E-05	1.2	8.0
10	109.5887729	40.8738116	−3.33611E-06	0.000161455	0.3	17.4

Table 3. Target location error (satellite horizontal positioning error is 1 m)

Zhaoqing LIU, Fang ZHANG, Lei ZHU, Zhaohui JIA, Jianghua WEN, Chuan QIN, Lanlan ZHANG. Target location accuracy analysis on loitering missile platform[J]. Journal of Applied Optics, 2022, 43(4): 592

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