 rockets, cluster submunitions (M42, BLU-63, M68, BLU-97, and M118), and mines (Gator, VS1.6, M12, PMN, and POM-Z).In the 1990s, a new SAR application of coherent SAR showed the ability the detection and measurement of very small changes in the earth's surface.The simplest form of this technology, known as coherent change detection (CCD), had obvious military and intelligence applications, and is now a valuable tool for analysts.