curious_mind
Full Member level 4
Hi
I am pretty new to signal processing. The following are my queries
I have two analog inputs a and b , input ranging between 0-3V DC. All I have to do is to take ratio of this signal in a microcontroller. To filter out noise , I am planning to use 2nd order IIR filter with 10Hz cut off. Now should I use an anti-aliasing filter at all. Since my measurement is ratiometric, can I safely assume that aliased components will be nullified due to division of a/b (common mode)?
I am pretty new to signal processing. The following are my queries
I have two analog inputs a and b , input ranging between 0-3V DC. All I have to do is to take ratio of this signal in a microcontroller. To filter out noise , I am planning to use 2nd order IIR filter with 10Hz cut off. Now should I use an anti-aliasing filter at all. Since my measurement is ratiometric, can I safely assume that aliased components will be nullified due to division of a/b (common mode)?