He was elected to Fellow of the American Physical Society in 1993. In 2004, he received the Presidential Rank Award. In 2006, he received ONR's Saalfeld Award for outstanding lifetime achievement. In 2008, he was honored with a festschrift to mark his 60th birthday, entitled 25 Years of Nonlinear Dynamics at ONR, based on a conference held on Amelia Island, Florida, July 20–22, 2008.