Experimental investigations of the possible use of TV broadcast signals for determining the drift velocity of meteor trails
DOI:
https://doi.org/10.3103/S0735272711050050Keywords:
Doppler effect, mesopause, lower thermosphere, meteor radar, meteor trail, semidiurnal tide, television broadcast signal, wind velocityAbstract
Peculiarities of using the TV broadcast signals for radar Doppler measurements of the drift velocity of meteor trails have been considered. A functional block diagram of the measuring apparatus for estimating the Doppler variations of the carrier frequency of TV broadcast signals reflected from drifting meteor trails was proposed. The developed apparatus made it possible for the first time to obtain the experimental proof of the possible use of TV broadcast signals for Doppler radiolocation of meteor trails and investigation of wind-induced motions at heights of the mesopause—lower thermosphere (80–105 km). It was shown that the variations of hourly average values of carrier frequencies of TV broadcast signals reflected from the meteor trails featured the intrinsic relationships typical for Doppler radar observations over the meteor trails drifting under the impact of wind-induced motions at heights 80–105 km.
References
B. L. Kashcheev, E. G. Proshkin, and M. F. Lagutin (Eds.), Remote Methods and Facilities for Investigating Processes in the Earth Atmosphere (KhNURE, Biznes Inform, Kharkiv, 2002) [in Russian].
A. N. Oleynikov, D. M. Sosnovchik, Yu. V. Lykov, et al., “The Use of TV Broadcast Signals for Investigating Processes in the Meteor Zone of the Earth Atmosphere,” Radiotekhnika (Kharkiv), No. 160, 47 (2010).
V. S. Chernyak, Multiposition Radiolocation (Radio i Svyaz’, Moscow, 1993) [in Russian].
V. D. Kukush, “Peculiarities of Measuring the Drift Velocity of Meteor Trail by Using the Space Diversity Radars,” in Proc. of 14th Int. Youth Forum “Radio Electronics and Youth in the XXI Century,” 2010, Kharkiv, Ukraine (KhNURE, Kharkiv, 2010), p. 100.
V. D. Kukush and A. N. Oleynikov, “Estimation of the Possible Determination of the Drift Velocity of Meteor Trail by Using TV Broadcast Signals,” in Proc. of XI Int. Theoretical and Practical Conf. “Modern Information and Electronic Technologies,” 2010, Odessa, Ukraine (ONPU, Odessa, 2010), Vol. 1, p. 218.
fmscan, http://www.ukwtv.de/fmscan/main.php.
A. N. Oleynikov, Yu. V. Lykov, and V. D. Kukush, “Enhancing the Efficiency of Space Diversity System for Radiolocation of Meteor Trails,” Radiotekhnika (Kharkiv), No. 157, 5 (2009).
Ch. Jacobi, D. Kьrschner, K. Frцhlich, et. al. “Meteor Radar Wind and Temperature Measurements over Collm (51.,3°N, 13°E) and Comparison with Co-located LF Drift Measurements during Autumn 2004,” Wissenschaftliche Mitteilungen aus dem Institut fur Meteorologie der Universitat Leipzig 36, 98 (2005).
Ya. D. Shirman (Ed.), Theoretical Principles of Radiolocation (Voiska PVO Strany, Moscow, 1968) [in Russian].
S. L. Marple, Jr., Digital Spectral Analysis with Applications (Prentice-Hall, New Jersey, 1987; Mir, Moscow, 1990).
