Results 261 to 270 of about 40,069 (287)

Extra-Terrestrial Radio Tracking and Communication

Proceedings of the IRE, 1960
When 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, H. Buchanan, R. Choate, L. Malling   +3 more
openaire   +1 more source

Lunar gravity: apollo 15 doppler radio tracking

The Moon, 1974
New detailed gravity measurements were obtained over a 10- to 70-km surface strip from − 70° to + 70° long. during low-altitude orbits (≈ 12 km at periapsis). The trajectory path (Figure 1) went over the centers of both Maria Serenitatis and Crisium, providing a complete center gravity profile of two large mascons.
P. M. Muller, W. L. Sjogren, W. R. Wollenhaupt   +2 more
openaire   +1 more source

Radio tracking of artificial earth satellites

Journal of the British Institution of Radio Engineers, 1961
The accuracy of position determination required for the various purpo for which earth satellites may be used is discussed briefly. The capabilities of optical tracking methods are indicated.The three principal radio methods are those using radar, Doppler fre quency shift and interferometer techniques. Although radar has already been used to some extent
openaire   +1 more source

A Radio-Tracking System for Wild Animals

The Journal of Wildlife Management, 1963
This 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
openaire   +1 more source

Radio-tracking: some applications and limitations

1978
For centuries men have observed and interpreted tracks and signs left by animals. Fieldcraft has grown from a trapper’s art into a biologists’ science, which has been enhanced, rather than made obsolete by the advent of the most recent technology. Murie’s (1936) meticulous ‘Following fox trails’ and Haglund’s (1966) miles of skiing along lynx tracks ...
openaire   +1 more source

State of the Art in Radio Tracking

1961
The 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
openaire   +1 more source

Analysis of Wildlife Radio-Tracking Data

The Journal of Wildlife Management, 1991
S. T. Buckland, G. C. White, R. A. Garrott   +2 more
openaire   +1 more source

Wolves (Radio-Tracking)

2021
openaire   +1 more source

Radio tracks crickets

Nature, 2002
openaire   +1 more source

Handbook of Animal Radio-Tracking

The Journal of Wildlife Management, 1984
Alan B. Sargeant, L. David Mech
openaire   +1 more source