The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners.
As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i
Microcomputer-controlled acoustic echo sounder
-
1977
[PDF-84.53 MB]
Details:
-
Personal Author:
-
Corporate Authors:
-
NOAA Program & Office:
-
Description:This thesis is the result of research into new concepts of remote sensing of the atmosphere and includes a literature survey of the theory and practical application of atmospheric sounding using acoustic methods. The "state of the art" has been advanced in that a new type of system was designed, fabricated, and tested using modern digital methods. The major advances of replacing the typically troublesome facsimile recorder with a dot-matrix line printer using special characters called "tonels" and the development of a new and novel method of digital Doppler signal processing using a real covariance technique, is presented in detail.
The echosonde is capable of monitoring and displaying in real time the temperature fluctuations, turbulent velocity inhomogeneities, and vertical wind profile of the planetary boundary layer to a height of 680 meters and includes a microcomputer, a high-speed line printer, and various author-designed and -constructed digital and analog circuits.
User control of various system parameters and a wide choice of display possibilities make this a versatile and desirable atmospheric research tool.
-
Keywords:
-
Series:
-
Document Type:
-
License:
-
Rights Information:CC0 Public Domain
-
Compliance:Library
-
Main Document Checksum:
-
Download URL:
-
File Type:
