Citation
Abstract
The potential benefit of using a smoothing filter to estimate carrier phase over use of phase locked loops (PLL) is determined. Numerical results are presented for the performance of three possible configurations of the DSN Advanced Receiver. These are Residual Carrier PLL, Sideband Aided Residual Carrier PLL, and finally Sideband Aiding with a Kalman Smoother. The average symbol SNR after losses due to carrier phase estimation error is computed for different total power SNRs, symbol rates and symbol SNRs. It is found that smoothing is most beneficial for low symbol SNRs and low symbol rates. Smoothing gains up to 0.4 dB over a Sideband Aided Residual Carrier PLL, and the combined benefit of Smoothing and Sideband Aiding relative to a Residual Carrier Loop is often in excess of 1 dB.
Details
- Volume
- 42-83
- Published
- November 15, 1985
- Pages
- 57–62
- File Size
- 344.9 KB