1. Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523, USA
2. NASA GSFC Wallops Flight Facility, Wallops Island, VA 23337, USA
3. Science Systems & Applications, Inc., Lanham, MD 20771, USA
4. Department of Atmospheric Sciences, Center for Atmospheric Remote Sensing (CARE), Kyungpook National University, Daegu 37224, Republic of Korea