Filtering scenarios
Notch filter is
ON
Low-pass/Band-pass is OFF
|
|
|
EEG
|
EMG
|
|
Notch filter is
ON Low-pass/Band-pass is OFF
|
Only the 50-Hz notch filter is active. Both EEG and EMG are treated identically. |
| These are real, measured filter curves of the equipment used in the Zurich Sleep Lab. |
©1998 BITS OF SLEEP (Demo) : Human sleep investigation: Signal analysis basics.
