NSF DMS Grant 1211687.  PI.  "High Dimensional Data Representations: Compressed Sensing, Randomized Row-Action Methods, and Quantization,"  July 2012 -- July 2015.

NSF DMS Grant 0811086.  PI.   "Accurate digital representation and recovery for redundant frames,"  July 2008 -- July 2012.

NSF DMS Grant 0504924.  co-PI.  "Accurate digital representations of overcomplete data expansions,"  July 2005 -- July 2008.