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Methods of autonomous underwater vehicles positioning

Sigiel Norbert

Scientific Journal of Polish Naval Academy

2019

R. 60 nr 1 (216)

31--43

Article presented below is a prelude to the process of autonomous underwater systems positioning. An article include description of positioning methods and guidelines for the operators of autonomous underwater vehicles (AUVs), concerning above mentioned process.

Artykuł stanowi wprowadzenie w tematykę pozycjonowania podwodnych systemów autonomicznych. Ujęto w nim charakterystykę obecnie wykorzystywanych metod pozycjonowania oraz wytycznedla operatorów pojazdów autonomicznych w zakresie realizacji tego procesu.

Subjective Evaluation of Three Headphone-Based Virtual Sound Source Positioning Methods Including Differential Head-Related Transfer Function

Storek D., Rund F., Marsalek P.

Archives of Acoustics

2016

Vol. 41, No. 3

437--447

This paper analyses the performance of Differential Head-Related Transfer Function (DHRTF), an alternative transfer function for headphone-based virtual sound source positioning within a horizontal plane. This experimental one-channel function is used to reduce processing and avoid timbre affection while preserving signal features important for sound localisation. The use of positioning algorithm employing the DHRTF is compared to two other common positioning methods: amplitude panning and HRTF processing. Results of theoretical comparison and quality assessment of the methods by subjective listening tests are presented. The tests focus on distinctive aspects of the positioning methods: spatial impression, timbre affection, and loudness fluctuations. The results show that the DHRTF positioning method is applicable with very promising performance; it avoids perceptible channel coloration that occurs within the HRTF method, and it delivers spatial impression more successfully than the simple amplitude panning method.