Methods and systems utilizing intermediate frequencies to control multiple coriolis gyroscopes

A system to control a plurality of gyroscopes, comprising:

• a first gyroscope having a natural frequency of operation (ωR) and generating a first output signal;
• first circuitry associated with the first gyroscope for receiving the first output signal and generating an x-coordinate signal at an intermediate frequency (ωIF);
• a second gyroscope having a natural frequency of operation (ωR) and generating a second output signal;
• second circuitry associated with the second gyroscope for receiving the second output signal and generating a y-coordinate signal at the intermediate frequency (ωIF);
• a third gyroscope having a natural frequency of operation (ωR) and generating a third output signal:
• third circuitry associated with the third gyroscope for receiving the third output signal and generating a z-coordinate signal at the intermediate frequency (ωIF);
• and
• a processor receiving the x, y, and z coordinate signals, each at the intermediate frequency (ωIF), and generating a directional signal.

A method for controlling a plurality of gyroscopes, the steps of the method comprising:

• determining the natural frequency of operation (ωR) for each one of the plurality of gyroscopes;
• adding a reference signal at a predetermined operating frequency to each of the output signals from each one of the plurality of gyroscopes to generate a signal for each of the gyroscopes at the same intermediate frequency (ωIF);
• and
• processing the signals from each one of the gyroscopes at the intermediate frequency (ωIF) to generate a directional signal.