Utilizing multipath to determine down and reduce dispersion in projectiles

A method comprising:

• receiving, via at least one sensor on a round, a plurality of RF signals transmitted by an airborne platform;
• determining, via a processor of the round, a time delay between at least one first received signal of the plurality of RF signals and at least one second received signal of the plurality of RF signals;
• and
• determining, via the processor of the round, a maximum amplitude comprising the at least one second received signal and the first received signal, the maximum amplitude indicating that the at least one sensor on the round is pointing down toward a ground surface.

A round configured to be launched from an airborne platform, the round comprising:

• at least one sensor configured to receive a plurality of inherent RF signals transmitted by the airborne platform;
• and
• a processor configured to determine a delay of time between a first received signal from the airborne platform and a second received signal comprising multi-path signals;
• wherein the processor is configured to determine a down position of the at least one sensor based on the delay of time and to cause the round to align its flight path with an initial velocity vector of the airborne platform relative to a ground surface using an altitude of the round that reduces initial dispersion.