Acoustic Signal Based Automatic Vehicle Detection System

Vehicle detection system plays an important role in intelligent transportation System. a multistage hierar- chical algorithm of acoustic signal analysis and pattern recognition for identification of moving vehicles in an open environment. Vehicle detection for the two wheelers, four wheelers and also heavy weight and light weight vehicles should be classified. The frequency pattern based on acoustic signal was matched with current signal and the vehicle is identified. The algorithm is tested on pre-recorded audio signals of passing passenger cars and displays promising classification accuracy.