Method for classifying moving vehicles

US9341707B2 · kind B2 · utility

Assignee

• Jenoptik Robot GmbH · DE

Inventors

• Michael LEHNING · Hildesheim, DE
• Dima PROEFROCK · Hamburg, DE

Key dates

• Filing date: Jul 18, 2013
• Grant date: May 17, 2016
• Expiry date: Aug 27, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/015
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for classifying vehicles in which an angle-resolving radar device yields measurement signals which have frequencies corresponding to a Doppler shift and which originate from measured vehicles and from which radial distances, object angles and radial velocities can be derived. The frequencies of the acquired measurement signals are stored as functions over the measurement time period, and a spectrogram is formed for every vehicle therefrom. Subsequently, the spectrograms are checked for assessment regions with maximum bandwidth of the frequency. These assessment regions are compared with assessment regions of stored spectrograms for different vehicle classes and associated with the most similar such that the measured vehicles are classified.