Range-gated imager
OwnerTemucin Som, Evgeny Som +1inventors
InventorsTemucin Som, Evgeny Som, Batuhan Okur
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Abstract
Embodiments are disclosed for a range-gated imager. In some embodiments, a method comprises transmitting, with a multi-tone continuous wave (MTCW) radar, a radar signal comprising a first tone and a second tone, where the first tone and the second tone are separated by a frequency gap; receiving, with the MTCW radar, a return signal from a projectile impinged by the radar signal; detecting, with a measuring apparatus, a zero crossing of a phase difference between the first and second tones; and responsive to detecting the zero crossing, gating or triggering, by the measuring apparatus, an imager to capture an image of the projectile.
Claims22
A method comprising:
- transmitting, with a multi-tone continuous wave (MTCW) radar, a radar signal comprising a first tone and a second tone, where the first tone and the second tone are separated by a frequency gap;
- receiving, with the MTCW radar, a return signal from a projectile impinged by the radar signal;
- detecting, with a measuring apparatus, a zero crossing of a phase difference between the first and second tones;
- and
- responsive to detecting the zero crossing, gating or triggering, by the measuring apparatus, an imager to capture an image of the projectile.
A system comprising:
- a multi-tone continuous wave (MTCW) radar;
- an imager;
- a measuring apparatus configured to:
- transmit a radar signal comprising a first tone and a second tone, wherein the first and the second tones are separated by a frequency gap;
- receive a return signal from a projectile impinged by the radar signal;
- detect a zero crossing of a phase difference between the first tone and the second tone;
- and
- responsive to detecting the zero crossing, gate or trigger the imager to capture an image of the projectile.
Dependencies are inferred from the claim text.