Results 261 to 270 of about 1,067,960 (312)
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Radio Tracking of Meteorological Balloons
Proceedings of the IRE, 1931There is a need for upper air meteorological observation at night as well as in the daytime, in cloudy and in foggy weather as well as in clear. This need has given rise to a number of interesting methods of obtaining these data, among them radio tracking of meteorological balloons.
W.R. Blair, H.M. Lewis
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1983
This chapter describes the principles and techniques of deep space radio tracking. The emphasis here is on the measurement functions of radio tracking, since the problems of establishing and maintaining radio contact are well covered elsewhere in this book.
Julian C. Breidenthal, Tomas A. Komarek
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This chapter describes the principles and techniques of deep space radio tracking. The emphasis here is on the measurement functions of radio tracking, since the problems of establishing and maintaining radio contact are well covered elsewhere in this book.
Julian C. Breidenthal, Tomas A. Komarek
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Radio Tracking of Dispersing Yellow Bellied Marmots
Transactions of the Kansas Academy of Science (1903-), 1968Movement of yearling yellow bellied marmots was studied by radio tracking. The equipment developed for this study is described and consists of a surgically implanted transmitter, two types of direction finding antennas and an inexpensive receiver. The results suggest that a river forms a barrier to movements, dispersing animals use burrows of greater ...
H W, Shirer, J F, Downhower
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Automated wildlife radio tracking
2019Radio direction‐finding techniques have been widely employed by the wildlife tracking community because they offer powerful, flexible tools for monitoring animal movements and behavior. This chapter focuses on the application of this technology to monitor animal movements.
MacCurdy, R.B. +3 more
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Environmental and Ecological Statistics, 1995
This paper considers the analysis of locational data collected by sampling the path of an animal as it moves about its home range. In particular, the use of the bivariate Omstein-Uhlenbeck diffusion process as a model of path movement for a single animal, proposed by Dunn and Gipson (1977, Biometrics33, 85–101), is studied when the tracking data are ...
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This paper considers the analysis of locational data collected by sampling the path of an animal as it moves about its home range. In particular, the use of the bivariate Omstein-Uhlenbeck diffusion process as a model of path movement for a single animal, proposed by Dunn and Gipson (1977, Biometrics33, 85–101), is studied when the tracking data are ...
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A Radio-Tracking System for Wild Animals
The Journal of Wildlife Management, 1963This system of radio location has been used on rabbits (Sylvilagus floridanus), striped skunks (Mephitis mephitis), and raccoons (Procyon lotor). Size, weight, life, physical and electrical stability, and radiated power are important parameters of the transmitter.
William W. Cochran, Rexford D. Lord
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Optimization of radio tracking frequencies
IEEE Transactions on Antennas and Propagation, 1979The three major factors which limit the performance of animal radio tracking systems: propagation loss, antenna detuning, and signal variability are described. Propagation loss for antenna heights from ground level to 2 m at five frequencies between 70 and 1250 MHz has been measured in mangroves and shows high loss at high frequency.
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State of the Art in Radio Tracking
1961The state of the radio tracking art for space vehicles is reviewed with particular emphasis placed upon accuracy and near-instantaneous data output. Special attention is given to interferometry techniques, which allow very precise range measurements to be made that are practically independent of the distance to the vehicle.
E. B. Mullen, C. R. Woods
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[Radio-tracking of rabid foxes].
Comparative immunology, microbiology and infectious diseases, 1982Three wild foxes were trapped, inoculated with rabid fox salivary glands virus and radio-tracked straightaway for about three weeks until the death of the animal. Comparison of movements between incubation and clinical period indicate principally no obvious alteration of the activity area; an important increase in movement, especially during the day ...
L, Andral +3 more
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Extra-Terrestrial Radio Tracking and Communication
Proceedings of the IRE, 1960When the U. S. Army lunar program was initiated in 1958, the Jet Propulsion Laboratory (JPL) was assigned the responsibility for the upper rocket stages and the payload. Payload responsibility included radio tracking and communication with the lunar probe.
M. Brockman +3 more
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