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Unformatted text preview: grading the signal of interest.
– EMG during ECG acquisitions – Electronic noise from instruments – Power-line interference – EM waves in our environment
Dr. Bülent Yılmaz Bü BME402: Biomedical Signal Processing-II Processing4 2 Deterministic vs. Random signal
• Deterministic signal
– Whose value at a given instant of time may be computed • using a closed-form mathematical function of time closed• or predicted from a knowledge of a few past values
of the signal • Otherwise signal is a random signal Dr. Bülent Yılmaz Bü BME402: Biomedical Signal Processing-II Processing- 5 Random noise
• An interference that arises from a random
process such as thermal noise in electronic devices • A random process is characterized by the probability density function (PDF)
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- Spring '12