By Topic

Design Concepts for Transportable Ionoscatter Systems and Experimental Results

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Bartholome, P. ; SHAPE Tech. Center, The Hague, Netherlands ; Vogt, I.

An experimental ionoscatter system carrying four 50-baud telegraph circuits has been designed and tested at 36 MHz over a distance of 1000 km between the Netherlands and Southern France. The object was to demonstrate the possibility of designing a system sufficiently compact to be made transportable. By using multiple-diversity reception and automatic request (ARQ) equipment, it has been possible to achieve a reliability of 99.9 percent with simple Yagi antennas and a transmitter power of 5 kW. The performance limits were an error rate of 1 to 3000 characters and a speed reduction of 10 percent. Frequency, horizontalspace, and vertical-space diversity reception have been tried. Signal strength measurements have also been made over paths shorter than 1000 km. It is shown that for a system with low-gain antennas the propagation loss at 400 km is 6 dB greater than at 1000 km. The use of error-correction codes is suggested for one-way connections where the ARQ technique is not applicable. It is shown that it is possible to obtain the same performance as with ARQ.

Published in:

Communication Technology, IEEE Transactions on  (Volume:15 ,  Issue: 6 )