Apparatus and imaging method with synthetic aperture for determining an incident angle and/or a distance

US8299959B2 · kind B2 · utility

Assignee

• Symeo GmbH · DE

Inventors

• Martin Vossiek · Ergolding, DE
• Stephan Max · Gifhorn, DE

Key dates

• Filing date: Jun 23, 2010
• Grant date: Oct 30, 2012
• Expiry date: May 4, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S15/8904
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to an imaging method with synthetic aperture for determining an incident angle and/or a distance of a sensor from at least one object in space, wherein at each of a number of aperture points one echo profile is sensed. Advantageously, for several angles assumed as the incident angle, one phase correction value and/or one distance correction value is calculated, adapted profiles are generated based on the echo profiles by adapting the phase with the phase correction value for each assumed angle and/or by shifting the distance with the distance correction value, for the assumed angle, the adapted profiles are summed or integrated, and a probability distribution is derived, and a probability value for the incident angle and/or for the distance is determined therefrom. A determination of the incident angle is also possible independently of the distance, wherein it is possible to only consider velocities or accelerations.