Polarized Radio Frequency (RF) Angular Orientation Sensor With Integrated Communication Link

A system comprising:

• a polarized RF scanning reference source comprising:
• first and second transmitter antennas for transmitting first and second reference scanning pattern waveforms, respectively;
• an amplitude modulation transmitter;
• a transmitter clock;
• and
• a transmitter processor configured to:
• receive a first timing input from the transmitter clock;
• generate the first and second reference scanning pattern waveforms;
• output the first and second reference scanning pattern waveforms to the first and second transmitter antenna, respectively;
• and
• one or more cavity sensor receivers, each comprising:
• one or more cavity sensors for receiving the transmitted first and second reference scanning pattern waveforms, respectively;
• an amplitude modulation receiver for receiving an output from the one or more cavity sensors for each of the first and second scanning pattern waveforms;
• a sensor clock;
• and
• a sensor processor configured to:
• receive a second timing input from the sensor clock;
• apply Fourier integration to extract a fundamental frequency and at least a fundamental frequency and two predetermined harmonics from the received output from the one or more cavity sensors;
• identify a time identified by the sensor clock at which the two predetermined harmonics are in phase and a time of zero crossing of the fundamental frequency harmonic;
• and
• determine a reference time of the reference clock for the received first and second reference scanning pattern waveforms.