Editing Bat detector (section)

===Time domain signal coding===

This type of bat detector is believed to be in pre-production or experimental and is not available commercially.{{Citation needed|date=April 2011}} Research is in progress for analysing many types of ultrasound calls and sounds besides those of bats.<ref name="TDSC_Paper">{{cite journal|last1=Chesmore|first1=E. D|title=Application of time domain signal coding and artificial neural networks to passive acoustical identification of animals|journal=Applied Acoustics|date=1 December 2001|volume=62|issue=12|pages=1359–1374|doi=10.1016/S0003-682X(01)00009-3|language=en}}</ref>

A TDSC detector digitises the original calls and derives a two dimensional data string by analysing the parameters of each call with respect to time. This is analysed by a [[Artificial neural network|neural network]] to provide pattern recognition for each species.