title: [The structural characteristics of the echolocation signal in the beluga whale Delphinapterus leucas].
abstract: The sounding signal analysis of beluga dolphin under aquatory adaptation with orientation reflexes has been conducted. It has been shown that the single sounding orientation impulse of beluga has a complex structure. Its initial part consists of a large number of components and has a great power. The main part of impulse is frequency-modulated and has a large duration and constant amplitude. The spectral analysis of beluga's signal demonstrates the low-frequency character with spectrum maximal of 1.6 kHz.
authors.forename: V I
authors.initials: VI
authors.lastname: Korolev
authors.forename: K A
authors.initials: KA
authors.lastname: Zaĭtseva
authors.forename: V V
authors.initials: VV
authors.lastname: Rotin
mesh_terms: D000818:Animals; D004289:Dolphins / Q000502:physiology; D004455:Echolocation / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D013018:Sound Spectrography / Q000706:statistics & numerical data; D014907:Whales / Q000502:physiology*
vernacular_title: Osobennosti struktury ékholokatsionnogo signala del'fina Delphinapterus leucas.