Real-time Wideband Video Synchronization via an Analog QPSK Costas Loop in a Laboratory Demonstration of an E-Band Satellite Downlink
- Resource Type
- Conference
- Authors
- Wormann, Janis; Manoliu, Laura; Haussmann, Simon; Krstic, Milos; Kallfass, Ingmar
- Source
- 2024 IEEE Space Hardware Radio Conference (SHaRC) Space Hardware Radio Conference (SHaRC), 2024 IEEE. :23-26 Jan, 2024
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineering Profession
Fields, Waves and Electromagnetics
Nuclear Engineering
Photonics and Electrooptics
Phase shift keying
Satellite broadcasting
Receivers
Streaming media
Real-time systems
Synchronization
Wideband
Carrier recovery
real-time
receiver synchronization
3G-SDI
QPSK Costas loop
zero-IF
- Language
A wideband video transmission in E-band from 71 to 76 GHz dedicated to a satellite downlink is demonstrated in a laboratory setup with an analog QPSK Costas loop circuit in 130nm SiGe BiCMOS in the receiver front-end for direct demodulation. A QPSK modulated, uncompressed 4K live video with a total data rate of 6 Gbit/s is received with an EVM of −17.5 dB in real-time at low power consumption due to analog receiver synchronization and without any further synchronization in the digital domain. The Costas loop provides a sufficiently large hold-in range to cover the carrier frequency drift due to the Doppler effect from the satellite overpass and operates with a power efficiency of 940 pJ/bit for the tested video stream data rate.