Sperm Whale IPI Measurement
Acquisition and processing of data from Tritech Gemini sonars.
Sperm Whale IPI Measurement
The “Sperm whale IPI Plugin” (AKA IPI plugin) is an external plugin for measuring the Inter-Pulse Interval (IPI) of the clicks of sperm whales. Measurement of IPI has been demonstrated to be a reliable means of estimating the total length of an individual sperm whale (Gordon 1991; Growcott et al 2011). The module employs two related signal processing methods, both based on cepstral analysis of clicks, to estimate IPI.
See the online help for further details.
References
Miller, B. S., Growcott, A., Slooten, E., and Dawson, S. M. (2013). Acoustically derived growth rates of sperm whales (Physeter macrocephalus) in Kaikoura, New Zealand. J. Acoust. Soc. Am., 134, 2438–45. doi:10.1121/1.4816564.