1. A method for identifying a moving object, comprising the steps of: transmitting, by a transmitter, an acoustic tone at a predetermined frequency; detecting, by a receiver, a reflected acoustic tone corresponding to the transmitted acoustic tone, the reflected acoustic tone being modulated by an unknown moving object; extracting acoustic features from the reflected acoustic tone using acoustic spectral analysis; reducing, in a processor, a dimensionality of the acoustic features; and identifying, in the processor, the unknown moving object using a statistical classifier and the acoustic features by transforming the acoustic tone to an object identity.