Photoelectric single-station passive location and error analysis to sea surface target

TAN Ligang; CHENG Qi; WEI Meiting; LI Jie; LUO Mingwei

doi:10.5768/JAO202445.0401002

Journal of Applied Optics > 2024 > 45(4): 673-684. > DOI: 10.5768/JAO202445.0401002

TAN Ligang, CHENG Qi, WEI Meiting, LI Jie, LUO Mingwei. Photoelectric single-station passive location and error analysis to sea surface target[J]. Journal of Applied Optics, 2024, 45(4): 673-684. DOI: 10.5768/JAO202445.0401002

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Photoelectric single-station passive location and error analysis to sea surface target

TAN Ligang^1,,
CHENG Qi^{1, 2, ,},
WEI Meiting^1,,
LI Jie¹,
LUO Mingwei¹

1.
Technology Innovation Center, Sichuan Jiu Zhou Electric Group Co.,Ltd., Mianyang 621000, China
2.
School of Information and Technology, Southwest Jiaotong University, Chengdu 610097, China

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Received Date: January 25, 2024
Revised Date: March 11, 2024
Available Online: June 19, 2024

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Abstract

Abstract

To realize single-station passive location to sea surface ship target by photoelectric reconnaissance equipment, the method of high-precision and near-real-time photoelectric single-station passive location to sea surface target was proposed. The equations of single-station passive location were constructed, the location errors were analyzed, the factors affecting the location errors were explored, and the application suggestions of single-station passive location were given. Simulation results show that the location error is about 1.672%R at range of 17.899 km, with once location time about 20 ms. The errors of location, latitude, longitude and altitude are separately subject to normal distribution with N (299.31 m, 197.39 m), N (4.944×10^−5°, 2.665×10^−3°), N (4.038×10^−5°, 1.899×10^−3°)and N (−0.485 m, 14.165 m). The errors of pitch, azimuth and target altitude have a great influence on the location accuracy. The location results are reliable when pitch is in the domain of [−120°, −15°], and the location error is smaller than 800 m when target altitude error is in the domain of [−200 m, 200 m], which realizes the high-precision and near-real-time single-station passive location to sea surface target. The proposed method is suitable for single-station passive location of sea surface, ground and air targets with reference plane of target altitude.
- photoelectric reconnaissance equipment,
- sea surface target,
- single-station passive location,
- error

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References

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Photoelectric single-station passive location and error analysis to sea surface target