Infrared detector signal modulation and narrow band filter system and realization method

Infrared detector signal modulation and narrow band filter system and realization method

The invention discloses an infrared detector signal modulation and narrow band filter system and a realization method. The system comprises a sinusoidal signal generator, an analog multiplier and a bandpass filter. Output of the sinusoidal signal generator in the system is connected with input of th...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SUN DEXIN, CHAI MENGYANG, CHEN KAI, LIU YINNIAN
Format: Patent
Sprache:eng
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention discloses an infrared detector signal modulation and narrow band filter system and a realization method. The system comprises a sinusoidal signal generator, an analog multiplier and a bandpass filter. Output of the sinusoidal signal generator in the system is connected with input of the analog multiplier, and output of the analog multiplier is connected with input of the bandpass filter. The infrared detector signal modulation and narrow band filter system and the realization method have the advantages that amplitude information of signals outputted by the infrared detector can be obtained, noise is reduced greatly, and the signal to noise ratio of the infrared system is thus improved.