08-10-2010, 03:37 PM
Presented by:
Ratish J. Punnoose
Introduction
Ex: An ultrasonic signal at 200kHz and another one at 201kHz will generate a 1kHz tone and a 401kHz signal which is inaudible to the human ear.
If an AM signal with a non-zero carrier amplitude is passed through Air, it is self-demodulated
- for more details on the topic and ppt, please follow the link given below
http://www.ece.cmu.edu/~ece796/seminar/1...ksonic.ppt
Ratish J. Punnoose
Introduction
Ex: An ultrasonic signal at 200kHz and another one at 201kHz will generate a 1kHz tone and a 401kHz signal which is inaudible to the human ear.
If an AM signal with a non-zero carrier amplitude is passed through Air, it is self-demodulated
- for more details on the topic and ppt, please follow the link given below
http://www.ece.cmu.edu/~ece796/seminar/1...ksonic.ppt