Hi everyone,
I am doing a project at university which requires me to transmit a voice signal using ultrasound. I was thinking of using an ADC to convert the voice signal and then use on off keying on the ultrasonic transducer (piezoelectric) to transmit the binary data and then convert it back on the other end. I have some uncertainties regarding the maximum data rates which can be achieved using on off keying. Maximum data rate meaning the point at which the receiver can just make out the binary levels, that will not result in binary errors.
I cannot simply test this as this comes out of our budget and if it doesnt work it would be a waste of money. I have had a look around on the internet but I havnt found evidence that someone has actually done this for a project. I have found papers on the projects, but they do not show consistent results in data rates achieved. I have created some graphs and flow diagrams which may help you understand what I am trying to achieve, feel free to contact me if you would like to see them.
Also this form of communication is our only option and we cannot use anything else. I dont know a great deal about communication circuits and data rates and have no experience in wireless communications so far.
Thank you
I am doing a project at university which requires me to transmit a voice signal using ultrasound. I was thinking of using an ADC to convert the voice signal and then use on off keying on the ultrasonic transducer (piezoelectric) to transmit the binary data and then convert it back on the other end. I have some uncertainties regarding the maximum data rates which can be achieved using on off keying. Maximum data rate meaning the point at which the receiver can just make out the binary levels, that will not result in binary errors.
I cannot simply test this as this comes out of our budget and if it doesnt work it would be a waste of money. I have had a look around on the internet but I havnt found evidence that someone has actually done this for a project. I have found papers on the projects, but they do not show consistent results in data rates achieved. I have created some graphs and flow diagrams which may help you understand what I am trying to achieve, feel free to contact me if you would like to see them.
Also this form of communication is our only option and we cannot use anything else. I dont know a great deal about communication circuits and data rates and have no experience in wireless communications so far.
Thank you