Jun 10, 2004 #1 L leacom Junior Member level 2 Joined Jul 25, 2002 Messages 23 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 68 which one has better noise performance? anyone can suggest some forms of digital phase sensitive detector thanks in advance
which one has better noise performance? anyone can suggest some forms of digital phase sensitive detector thanks in advance
Jun 10, 2004 #2 flatulent Advanced Member level 6 Joined Jul 19, 2002 Messages 4,624 Helped 489 Reputation 980 Reaction score 151 Trophy points 1,343 Location Middle Earth Activity points 46,689 If you are worried about noise, the analog multiplier is the best one because it works on low level signals where noise is important. If you severely low pass filter the output (equivalent to integrating for a long time) the measurement will be less contaminated by noise.
If you are worried about noise, the analog multiplier is the best one because it works on low level signals where noise is important. If you severely low pass filter the output (equivalent to integrating for a long time) the measurement will be less contaminated by noise.