Title:
DOPPLER SPEEDOMETER AND SPEED MEASUREMENT METHOD
Document Type and Number:
Japanese Patent JP2016205904
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a Doppler speedometer in a simple configuration capable of accurately measuring an object speed in a measurement environment with a low signal-to-noise ratio.SOLUTION: A Doppler speedometer comprises: a first Doppler speedometer 12 outputting a first speed information that indicates a speed including noise obtained by measuring a speed by a Doppler method using frequency information; a speed measurement range determination unit 13 determining a speed measurement range necessary for measuring an object speed based on a speed and noise indicated by the first speed information outputted from the first Doppler speedometer 12; and a second Doppler speedometer 14 measuring an object speed by a Doppler method using phase difference information, the second Doppler speedometer measuring the object speed at a pulse interval or a frequency interval appropriate for the speed measurement range determined by the speed measurement range determination unit 13.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
KAWAGUCHI NOBUYOSHI
RYU HO
RYU HO
Application Number:
JP2015085397A
Publication Date:
December 08, 2016
Filing Date:
April 17, 2015
Export Citation:
Assignee:
UNIV KOBE
International Classes:
G01S15/58; G01S13/58; G01S13/87; G01S15/87; G01S17/58; G01S17/87
Attorney, Agent or Firm:
Hiromori Arai