Methods, systems, and computer readable media for mitigation of in-band interference of global positioning system (GPS) signals

A method of enhanced GPS receiving by mitigating interference in reception of global positioning system (GPS) signals, the method comprising:

• receiving, from a first antenna, a first signal comprising a desired signal component S1 and a jammer signal component J1;
• receiving, from a second antenna, a second signal comprising a desired signal component S2 and a jammer signal component J2;
• introducing a test phase shift into one of the first and second signals;
• combining, by a modifier circuit, the first and second signals after introducing the test phase shift to create a third signal;
• and
• measuring an amplitude of the third signal at a first time after introducing the test phase shift;
• deterministically calculating a phase shift based on the amplitude of the third signal at the first time and amplitudes of the first and second signals;
• at a second time later than the first time:
• modifying, using the modifier circuit, the second signal so that jammer signal component J2 is substantially anti-phase with respect to jammer signal component J1 by applying the calculated phase shift to the second signal;
• and
• combining, by the modifier circuit, the modified second signal and the first signal to create the third signal so that, after the second time, the third signal contains desired signal components S1 and S2 and jammer signal component J2 substantially cancels jammer signal component J1.