Precision of the IAS monitoring system based on the elapsed time method in the spectral domain ?
Instantaneous angular speed measurement using elapsed time method is studied. Elapsed time method is shown to induce low-pass filter on IAS spectrum. Aliasing is attenuated by the cardinal sine shape of the filter induced. Quantization errors and signal-to-noise ratio are determined. Results can be used to conveniently design an IAS monitoring system.
instantaneous angular speed aliasing angular sampling quantization precision