Strategy for construct<strong>in</strong>g ultra-low noise microwave reference oscillator with reduced acceleration sensitivity. While the oscillator is under vibration, an estimate <strong>of</strong> a complexconjugate (same amplitude, opposite phase) signal will be generated from accelerometer signals <strong>and</strong> used to modulate the oscillator’s output phase <strong>in</strong> such a way as to suppress or cancel the <strong><strong>in</strong>duced</strong> sideb<strong>and</strong>s. One-axis cancellation is shown for simplicity.
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