Circuit consisting to only four components (2 IC chips and 2 time delay devices) modulates RF signal with 2 asynchronous digital data signals. Digital modulator is virtually free of amplitude modulation, is not subject to temperature effects from other components, dissipates less power, and is far simpler than its analog predecessors.
All-digital QPSK modulator
01.04.1980
Sonstige
Keine Angabe
Englisch
Direct Ka-Band QPSK Modulator for Euroskyway Multimedia Satellite
British Library Conference Proceedings | 2001
|High Data Rate Direct X-Band QPSK Modulator
AIAA | 2004
|AIAA-2004-3125 High Data Rate Direct X-Band QPSK Modulator
British Library Conference Proceedings | 2004
|