A strap, instrumented to measure stretch, is worn around the chest to detect respiration whilst a subject is at-rest. The resulting signal is contaminated by electrical noise from the mains at 50 Hz with a similar amplitude to the respiration signal. Sketch what the contaminated signal might look like.
The signal is then sampled into a computer. Explain what the resulting digitised signal will look like (using sketches if required) if it is sampled at:
1. 50 Hz
3. 500 Hz
What processing should be done on the computer to recover the respiration signal?
The solution is attached below in two files. the files are identical in content, only differ in ...
The solution is provided in two differently formatted attachments (.pdf and .doc) with long explanations, diagrams and step-by-step equations regarding a respiration signal. References are also provided.