WASHINGTON — The U.S. Air Force and the Space Force are working with the National Reconnaissance Office to develop a dedicated constellation of sensor satellites specifically designed for Ground Moving Target Indication (GMTI). This technology would replace the large radar surveillance aircraft like JSTARS previously used by the Air Force to track the movement of troops and vehicles on the ground.

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Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...