Optical sensor device

A signal processing device in an optical sensor device further calculates first frequency variation reference signal data serving as a reference for frequency variation of light output from a wavelength swept light source on the basis of an internal reception signal converted into a digital signal b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Junya Nishioka, Naoki Suzuki, Takanori Yamauchi
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A signal processing device in an optical sensor device further calculates first frequency variation reference signal data serving as a reference for frequency variation of light output from a wavelength swept light source on the basis of an internal reception signal converted into a digital signal by an analog-to-digital converter, a digital-to-analog converter converts the first frequency variation reference signal data calculated by the signal processing device into an analog signal to generate a first frequency variation reference signal as a first clock signal, and the analog-to-digital converter samples a reception signal acquired by an optical heterodyne receiver in synchronization with the first frequency variation reference signal generated by the digital-to-analog converter.