As the order of filter needed for digital information gets higher, it takes longer to process and requires more memory. Maybe analog filtering could be of use here. I know that the words analog and high precision dont often appear in the same room together, but lets assume they do for the sake of this post.
Ok, so I suggest that when a higher order filter is needed the following linkage of devices could be implemented:
DAC > Analog Filter > ADC
My question regarding this are:
- Has this linkage of devices been used before?
- If so, where can I find literature on it?
- If not, why do you think it hasn't been used?
(Assume highly precise analog filters are being used)