An improved process for phase-derived range measurements

Details An improved process for phase-derived range measurements An improved process for phase-derived range measurements

G - Physics

01

S

G01S 13/58 (2006.01) G01S 7/41 (2006.01) G01S 13/66 (2006.01)

Patent

CA 2532328

A method and apparatus for determining range of a radar target is provided. Signal samples based on returns of a target during tracking are processed to produce a wideband envelope range estimate for components of target motion. The components of target motion include precession and spin motion. Ambiguous phase values are measured. An unambiguous phase value indicative of range is produced from the wideband envelope range estimate and measured ambiguous phase values.

L'invention concerne un procédé et un appareil pour déterminer la portée d'un radar cible. Des échantillons de signaux fondés sur le retour d'une cible, lors de son suivi, sont traités pour produire une estimation de la portée d'enveloppes à bande large pour des composants de mouvement cibles. Les composants du mouvement cible comprennent la précession et le mouvement de rotation. Des valeurs de phase ambiguë sont mesurées. Une valeurs de phase non ambiguë indiquant la portée est produite à partir de l'estimation de la portée d'enveloppes à bande large et à partir des valeurs de phases ambiguës mesurées.

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