ACCURACY OF RASS MEASUREMENTS AND THE BRAGG CONDITION

Authors
PETENKO IV BEDULIN AN
Citation
Iv. Petenko et An. Bedulin, ACCURACY OF RASS MEASUREMENTS AND THE BRAGG CONDITION, International journal of remote sensing, 15(2), 1994, pp. 369-374
Citations number
7
Categorie Soggetti
Photographic Tecnology","Remote Sensing
Journal title
International journal of remote sensing → ACNP
ISSN journal
01431161
Volume
15
Issue
2
Year of publication
1994
Pages
369 - 374
Database
ISI
SICI code
0143-1161(1994)15:2<369:AORMAT>2.0.ZU;2-Z
Abstract
The influence of a mismatch in the Bragg condition on the frequency of the received RASS signal was observed in data obtained with a continu ous-wave radar and a pulsed acoustic source. Sound velocity fluctuatio ns in the scattering volume coupled with a spatial non-uniformity of t he reflectivity of the acoustic grating is suggested as a reason for t his effect. Use of linearly frequency modulated (LFM) pulsed acoustic excitation is proposed as a means of compensating for this effect.