Citation
Abstract
In this article a method of determining the group delay effect of DSN microwave components on multimegabit telemetry detection is described. That is, when the gain and phase shift characteristics of the overall system between the modulator and demodulator are given, the group delay effect for the intended data rate can be assessed by examining the equation for the recovered signal (equation *) for several rectangular pulse inputs with different duty cycles, For example, the group delay loss of 30 Mbit/sec telemetry with only a Block I X-band maser is less than 0.2 dB even with a 10-MHz center frequency offset.
Details
- Volume
- 42-67
- Published
- February 15, 1982
- Pages
- 59–65
- File Size
- 287.3 KB