Citation
Abstract
The best-lock frequency of an idling carrier loop drifts in response to thermal noise at the receiver input. This effect is less for a loop with an imperfect integrator than it is for a loop of the same bandwidth with a perfect integrator. But perfect integration gives better tracking performance. In order to provide mission designers with a choice of loop types, the Spacecraft Transponding Modem (STM) will have a flexible loop filter design that can be programmed for either perfect or imperfect integration.
Keywords
deep space transponder
transponder
loop filter design
drift of best lock frequency of a phase locked loop
drift of best lock frequency of a phase locked receiver
digital loop filter
Details
- Volume
- 42-135
- Published
- November 15, 1998
- Pages
- 1–11
- File Size
- 246.3 KB