Citation
Abstract
The carrier tracking performance of the breadboard Costas Loop of the Multimegabit Telemetry Demodulator Detector System was tested with unbalanced quadriphase shift keying (UOPSK) signals, An S-band UQPSK modulator has been built for the tests. The experimental results are very close to the theoretical rms phase error calculations. The test and analysis show that the rms phase error for UQPSK signals is less than 5 deg at the design point if the I-to-Q channel power ratio is larger than 6 dB.
Details
- Volume
- 42-64
- Published
- August 15, 1981
- Pages
- 109–115
- File Size
- 356.6 KB