Effects of modulation index on telecommunications
Abstract
The relationship between modulation index and telecommunication link was studied for the Deep Space Program Science Experiment. Analytical aspects of modulation index are presented with a brief overview of modulation process in the relational format. Relations of modulation index with bandwidth, ranging/command/telemetry/carrier power losses, bit error rate, signal-to-noise ratio, and hardware simulation results of DSPSE communication links have been investigated with samples of graphical analysis to show optimum ranges of modulation indexes. It is noted that the influence of modulation indexes should not be overlooked in space communication link analysis.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1994
- Bibcode:
- 1994STIN...9523023C
- Keywords:
-
- Bandwidth;
- Binary Phase Shift Keying;
- Deep Space;
- Modulation;
- Phase Shift Keying;
- Space Communication;
- Space Programs;
- Telecommunication;
- Amplitude Modulation;
- Bit Error Rate;
- Data Links;
- Error Analysis;
- Pulse Modulation;
- Signal To Noise Ratios;
- Communications and Radar