IEEE has announced the recipients of the 2015 IEEE medals. Three Signal Processing Society members were awarded with IEEE medals for 2015: The IEEE Edison Medal recognizes a career of meritorious achievement in electrical science, electrical engineering, or the electrical arts. James Julius Spilker (AOSense, Inc., Half Moon Bay, California, USA) was honored for "contributions to the technology and implementation of civilian GPS navigation systems." The IEEE Jack S. Kilby Signal Processing Medal, awarded for outstanding achievements in signal processing, was presented to Harry L. Van Trees (George Mason University, Standardsville, Virginia, USA) for "fundamental contributions to detections, estimation, and modulation theory; sensor array processing; and Bayesian bounds." The IEEE James H. Mulligan, Jr. Education Medal, distributed for a career of outstanding contributions to education in the fields of interest of IEEE, was awarded to Richard Gordon Baraniuk (Rice University, Houston, Texas, USA) for "fundamental contributions to open educational resources for electrical engineering and beyond." IEEE medals are the highest honor of awards presented by IEEE. The medals will be presented at the 2015 IEEE Honors Ceremony. Congratulations to all of the recipients!