Guidance method and system for calculating course correction when navigating using unintended radio frequency or radiative emissions

A guidance system configured to provide navigation to a vehicle comprising:

• antennas configured to sense an unintended radio frequency and/or unintended radiative emissions;
• an onboard operation or flight computer configured to triangulate the unintended radio frequency and/or the unintended radiative emissions;
• a connection between the onboard operation or flight computer and an operational control system of the vehicle;
• and
• wherein, the guidance system is configured to utilize the triangulation of the unintended radio frequency and/or the unintended radiative emissions sensed by the antennas for calculating course corrections for providing navigation to the vehicle.

An un-manned aerial system (UAS) comprising:

• a guidance system configured to provide navigation to the UAS, the guidance system including:
• two pairs of diametrically opposed directional antennas configured to sense unintended radio frequency and/or radiative emissions;
• an omni-directional antenna configured to deduce relative distance to a sensed unintended radio emission source by sensing a perceived signal strength or a received signal strength indicator (RSSI) value;
• and
• wherein, the guidance system included with the UAS is configured to triangulate the sensed unintended radio frequency and/or radiative emissions from the two pairs of the diametrically opposed directional antennas and utilize the sensed unintended radio frequency and/or unintended radiative emissions for calculating course corrections for providing navigation to the UAS, and to deduce relative distance to a sensed unintended radio emission source from the omni-directional antenna by sensing a perceived signal strength or a received signal strength indicator (RSSI) value.