Continuous wave laser celiometer with code modulation for measurements of cloud base height

• Autorzy: Holejko, K. , Nowak, R.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a CW low power celiometer designed for cloud base height measurements. The 500-mW CW IR laser of the celiometer is modulated by a pseudo noise sequence. The scattered and delayed light signal is obtained by a correlation system with output bandwidth of only 3.5 Hz. This enables to obtain the ranges of 1.2 km to the clouds and the accurancy of the order of ± 2.5 m to the solid objects. The following problems are discussed: principle of operation, device architecture, and error estimation. Some measurement results are also enclosed.

Słowa kluczowe

EN

aerosol extinction; laser rangefinders; spread spectrum systems

• Czasopismo: Opto-Electronics Review
• Rocznik: 2000
• Tom: Vol. 8, No. 2
• Strony: 195-199
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Holejko, K.

autor

Nowak, R.

• Warsaw University of Technology, 15/19 Nowowiejska Str., 00-665 Warsaw, Poland