SPACE COMMUNICATIONS TECHNIQUES
PAGE COMMUNICATIONS ENGINEERS INC WASHINGTON DC
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A description is given of the expansion of interim simplex space communication facilities at Rome, N. Y., and Trinidad to full duplex for use in communication experiments using passive satel lites. Objectives of improved tracking accuracy and system gain were achieved by providing a conical scan feed and an optical tracking system at Rome, and new cooled, low-noise, doppler tracking receivers at both sites. Full duplex opera tion, deriving tracking information from received frequency while transmitting, and use of a highly sensitive receiving system in the same antenna with a megawatt-level radar tracking system were found practical. Tracking accuracy of the im proved system proved satisfactory. Recommended improvements in the communications baseband demod ulator, doppler-shift tracking, and passive radar tracking at Rome, N. Y. are discussed.
- Radio Communications
- Active and Passive Radar Detection and Equipment