Citation
Abstract
Performance results of a digital test signal-generator hardware-demonstration unit are reported. Capabilities available include baseband and intermediate frequency (IF) spectrum generation, for which test results are provided in this article. Repeatability in the setting of a given signal-to-noise ratio (SNR) when a baseband or an IF spectrum is being generated ranges from 0.01 dB at high SNR’s or high data rates to 0.3 dB at low data rates or lov SNR’s. Baseband symbol SNR and carrier SNR (P,/No) accuracies of 0.1 dB have been verified with the built-in statistics circuitry. At low SNR’s that accuracy remains to be fully verified. These results have been confirmed with measurements from a demodulator synchronizer assembly for the baseband spectrum generation, and with a digital receiver (Pioneer 10 receiver) for the IF spectrum generation.
Details
- Volume
- 42-114
- Published
- August 15, 1993
- Pages
- 140–153
- File Size
- 548.5 KB