New Sampling Techniques Make Up For Lost Data
An unnamed reader writes: "Professors at Vanderbilt and the University of Connneticut have published a non-uniform sampling theory that could yield better quality digital signals than the standard Uniform sampling techniques pioneered by Shannon at Bell Labs.
The Vanderbilt press release and link to the published paper can be found here."
MP3 (and Ogg Vorbis, etc.) technology. I mean, mathematical non-lossless compression technology... different algorithm, same purpose. (Side note: It seems ironic that as storage space grows, this becomes less and less necessary.) In any case, it seems to indicate a trend: the ability to get the maximum from a minimal amount of data.
Nyquist formulated the sampling theorem in 1928, but never proved it. Shannon provided the first proof in 1949.
-Tom Duff