Establishing a Conventional Doppler Sodar cum Doppler Minisodar at the National Physical Laboratory

Autor:	Neeraj Saxena, B. S. Gera, S. P. Singal
Rok vydání:	1997
Předmět:	Atmospheric Science Data processing Computer science business.industry Fast Fourier transform SODAR Ocean Engineering Signal symbols.namesake Software Data acquisition Personal computer symbols business Doppler effect Remote sensing
Zdroj:	Journal of Atmospheric and Oceanic Technology. 14:527-532
ISSN:	1520-0426 0739-0572
DOI:	10.1175/1520-0426(1997)014<0527:eacdsc>2.0.co;2
Popis:	A personal computer–based three-axis Doppler sodar, capable of working in Doppler minisodar mode too, has been established at the National Physical Laboratory, New Delhi, India. The fast Fourier transform technique has been used to extract the frequency shift in the signal received after scattering. Generation of audio tone bursts of a desired frequency and selectable duration, data acquisition, and data processing have been achieved through a menu-driven software. The system operates at a frequency of 2.25 or 4.5 kHz, depending upon the required version of Doppler sodar operation. Details of the system hardware, software, and some preliminary results are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dd90153c84c6e946d3c3a5c837ba0056 https://doi.org/10.1175/1520-0426(1997)014<0527:eacdsc>2.0.co Zobrazit plný text záznamu Plný text ve formátu PDF