A Privacy Preserving Protocol for Generation the Common Tangent of Two Circles

Wang, Haiying; Fu, Zufeng

doi:10.1109/ihmsc.2014.63

Cited by 1 publication

(1 citation statement)

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“…Lemma 1. According to the common tangent calculation method of (Haiying and Zufeng, 2014), when the position coordinates of R1, R2 which are the yaw distance between the AUV and the hydrophone estimated by the Doppler acoustic signal of the AUV motor of a single hydrophone in Figure 3, and the two hydrophones are known, the parameter equations of the four common tangents L1, L2, L3, and L4 can be obtained. In Figure 3A, L1 and L2 are the outer tangents of two circles, and L3 and L4 are the inner tangents of two circles.…”

Section: Design Of Auv Detection Model For Multiple Distributed Singl...mentioning

confidence: 99%

Motion parameter estimation of AUV based on underwater acoustic Doppler frequency measured by single hydrophone

Rong

Xu²

2022

Front. Mar. Sci.

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This paper describes the use of a single hydrophone to estimate the motion parameters of an autonomous underwater vehicle (AUV) from the underwater acoustic signal excited by its propulsion motor. First, the frequency range of the hydroacoustic signal radiated by the AUV motor is determined, and a detection and recognition model is designed. In the case of uniform linear motion of the AUV, the geometric relationship between the Doppler frequency shift curve of the sound source is derived and the motion model of the sound source and sound line propagation is established. An estimation algorithm for the motion parameters of multiple AUVs based on data from a single hydrophone is derived. Then, for Doppler underwater acoustic signals disturbed by independent identically distributed noise with an arbitrary probability distribution, a cumulative phase difference power amplification instantaneous frequency estimation method is proposed. This method is based on the sum of multiple logarithmic functions. Finally, the effectiveness and accuracy of the algorithm in estimating the motion parameters of multiple AUVs are verified through simulations and experiments.

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Section: Design Of Auv Detection Model For Multiple Distributed Singl...mentioning

confidence: 99%