DFMI resolves absolute ranging ambiguity by estimating modulation depth m and phase φ; Fisher analysis and simulations identify valleys of robustness that suppress systematic errors from hardware imperfections.
Because a parasitic signal has a different modulation depth (mghost ̸= mprimary), it is mathematically orthog- onal to the main signal
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Fundamental Limitations of Absolute Ranging via Deep Frequency Modulation Interferometry
DFMI resolves absolute ranging ambiguity by estimating modulation depth m and phase φ; Fisher analysis and simulations identify valleys of robustness that suppress systematic errors from hardware imperfections.