Yujie Gu, PhD, currently works as a Senior Radar Scientist at Aptiv Advanced Engineering Center, Agoura Hills, California. He is an Associate Editor of IEEE Transactions on Signal Processing, a Subject Editor-in-Chief of Electronics Letters, an Editor of Signal Processing, and an elected member of the Sensor Array and Multichannel (SAM) Signal Processing Technical Committee and the Signal Processing Theory and Methods (SPTM) Technical Committee of the IEEE Signal Processing Society. He is a Senior Member of IEEE. Yimin D. Zhang, PhD, is currently an Associate Professor with the Department of Electrical and Computer Engineering at Temple University, Philadelphia, Pennsylvania. He is a Senior Area Editor of IEEE Transactions on Signal Processing, an Editor of Signal Processing, and an elected member of the Signal Processing Theory and Methods (SPTM) Technical Committee of the IEEE Signal Processing Society. He is a Fellow of IEEE, a Fellow of SPIE, and a Distinguished Lecturer of the IEEE Signal Processing Society.