I've spent some time reading about oversampling and I think I understand
the fundamentals. Oversample by some factor > desired bandwidth,
decimate and increase ENOB (with certain assumptions about dithering,
My signal of interest is slowly varying (1-2 Hz), and I'm using a 10-bit
ADC, oversampling at 10 ksamples/sec.
1. For oversampling, some documents talk about accumulate and decimate
("dump") where after accumulation, LSBs are chopped off and the new
sample has increased number of bits.
Do I still need to low-pass filter after the decimation? Some documents
mention the low-pass and some do not.
2. Is a moving-average filter an acceptable low-pass if the answer to
above is "yes"?
I understand the MAF will only help reduce noise, but will not help me