Patent ID: 9121860
Filing Date: 2015-09-01
Classification: G01P

Abstract:
1. A method comprising the steps of: creating a digital representation of an acoustic signal using a waveform and random phase values stored in non-volatile memory contained within a transmitter coupled to a first end of a vehicle, wherein the digital representation of the acoustic signal comprises a continuous wave form having Fourier components of substantially equal amplitude and random phase; converting the digital representation of the acoustic signal into an electrical signal; filtering and amplifying the electrical signal; inputting the filtered and amplified electrical signal into a transducer contained within the transmitter; outputting the acoustic signal from the transducer towards an acoustic signal receiver coupled to a second end of the vehicle; receiving and filtering the acoustic signal at the acoustic signal receiver; converting the filtered acoustic signal into a digital signal; and using a processor contained within the acoustic signal receiver to perform the steps of