A critical problem related to assured missile launch is the existence of robust communications. Present systems use a variety of space, airborne, and point-to-point radio communications supplemented by land wire systems. Including future laser systems all of these are subject to serious disruption from natural nude and jamming interference. The innovative concept presented herein can provide low rate communications essentially immune from these interference's. This proposed concept uses induced seismic waves to provide robust communications. Deep underground basing could experience one-way ranges up to 10 nm and bandwidths of some 20 hz, or more. Mobile surface basing could experience ranges of 20 nm and bandwidths of 40 hz, or more. These communications would be immune from natural or man induced, electrical or mechanical interference. The objectives of this Phase I effort will be to conceptually design the system and forecast its performance. To achieve these objectives it will be necessary to review the existing analysis baser model the transmission mediate conceptually design the transmitter and receiver elements, and forecast performance using the existing empirical data and modeled environments. The result will be quantative establishment of the feasibility and operating parameters of this method of robust communications.
