Water track laser Doppler velocimeter [Invited]

Rong Huang; Qi Wang; Zhiyi Xiang; Xiaoming Nie; Jian Zhou; Hui Luo

doi:10.3788/COL202321.090005

Journals >Chinese Optics Letters >Volume 21 >Issue 9 >Page 090005 > Article

Chinese Optics Letters
Vol. 21, Issue 9, 090005 (2023)

Water track laser Doppler velocimeter [Invited]

Rong Huang^1,2, Qi Wang^1,2, Zhiyi Xiang^1,2, Xiaoming Nie^1,2..., Jian Zhou^1,2,* and Hui Luo^1,2|Show fewer author(s)

Author Affiliations

¹College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

²Nanhu Laser Laboratory, National University of Defense Technology, Changsha 410073, China

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DOI: 10.3788/COL202321.090005 Cite this Article Set citation alerts

Rong Huang, Qi Wang, Zhiyi Xiang, Xiaoming Nie, Jian Zhou, Hui Luo, "Water track laser Doppler velocimeter [Invited]," Chin. Opt. Lett. 21, 090005 (2023) Copy Citation Text

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Abstract

A water track laser Doppler velocimeter (LDV) is developed with advantages of high update rate, high real-time performance, high concealment, light weight, and small dimensions. The water track LDV measures the advance velocity of the underwater vehicle with respect to the surrounding water. The experimental results show that the water track LDV has an accuracy of 96.4% when the moving velocity of the vehicle with respect to the ground exceeds 0.25 m/s. Thus, the water track LDV is promising in the application of underwater navigation to aid the strapdown inertial navigation system.

Keywords

laser Doppler velocimeter underwater navigation water track

V_{LDV} = \frac{λ f_{D}}{2 \sin α} .

(1)

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V_{LDV}^{m} = K_{s} {\hat{V}}_{LDV}^{m} + K_{b},

(2)

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{\hat{V}}_{GNSS}^{m} = K_{s} {\hat{V}}_{LDV}^{m} + K_{b} .

(3)

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V_{GNSS} = K_{s} V_{LDV} + K_{b},

(4)

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PCC = \frac{\sum_{i = 1}^{n} (X - \bar{X}) (Y - \bar{Y})}{\sqrt{\sum_{i = 1}^{n} {(X - \bar{X})}^{2}} \sqrt{\sum_{i = 1}^{n} {(Y - \bar{Y})}^{2}}},

(5)

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Max = \max_{n} (\tilde{X} - \hat{X}),

(6)

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Mim = \min_{n} (\tilde{X} - \hat{X}),

(7)

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MAE = \frac{1}{n} \sum_{i = 1}^{n} | \tilde{X} - \hat{X} |,

(8)

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RMSE = \sqrt{\frac{1}{n} \sum_{i = 1}^{n} {| \tilde{X} - \hat{X} |}^{2}},

(9)

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MPA = 1 - \frac{1}{n} \sum_{i = 1}^{n} | \frac{\tilde{X} - \hat{X}}{\hat{X}} |,

(10)

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RME = | \frac{\tilde{X} - \hat{X}}{\hat{X}} |,

(11)

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Rong Huang, Qi Wang, Zhiyi Xiang, Xiaoming Nie, Jian Zhou, Hui Luo, "Water track laser Doppler velocimeter [Invited]," Chin. Opt. Lett. 21, 090005 (2023)

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