Exponent: Arbitrary Bandwidth Receiver Architecture
summary
Claims a practical architecture that stitches many narrowband 9361 receivers into one arbitrarily wide receiver by matching Nyquist filter magnitudes, detecting phase error in overlap regions with a digital-PLL-like loop, and applying complex phase shifts. Implements the algorithm on Xilinx Zynq + ADI FMCOMMS5, uses GNU Radio and a USRP source with QPSK video traffic, locks within a few milliseconds, shows better BER in overlap region than a single receiver, and validates results in simulation and working hardware.
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chapters (18)
- 0:00Introduction
- 0:20Small satellite industry needs
- 1:47Wideband receiver architecture
- 3:12Market limitations
- 4:16Theoretical simulations
- 5:00Nyquist filters
- 6:24Phase synchronization challenges
- 7:51Phase offset adjustment
- 8:55Real-time phase feedback
- 10:19Real data results
- 11:23Hardware overview
- 12:27FMComs5 proof-of-concept
- 13:30New Radio processing
- 14:55Real-time signal reconstruction
- 15:16Signal visualization
- 16:21Performance and BER results
- 17:22Conclusion
- 18:46Q&A
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