| Title: |
TMO Progress Report 42-135 November 15, 1998 The Effect of Phase and Amplitude Imbalance on the Performance of Offset Quadrature Phase-Shift-Keyed (OQPSK) Communication Systems |
| Authors: |
Tsou The Balanced; I. Introduction; H. Tsou |
| Contributors: |
The Pennsylvania State University CiteSeerX Archives |
| Source: |
http://tmo.jpl.nasa.gov/tmo/progress_report/42-135/135I.pdf. |
| Collection: |
CiteSeerX |
| Description: |
This article summarizes an analysis of the impact of these modulator imbalances on an o#set QPSK (OQPSK) communication system in which an OQPSK signal is coherently demodulated by using a carrier reference extracted from a modified QPSK carrier tracking loop. Both carrier-suppression level and bit-error performance are analyzed in this article. The results show that the current Consultative Committee for Space Data Systems (CCSDS) recommendations of 2-deg maximum permissible phase imbalance and 0.2-dB amplitude imbalance are su#cient to provide a 25-dB or more carrier suppression and a system degradation of 1 dB or less at the bit-error probability of 10 -4 when the OQPSK system is operated in a reasonable loop SNR region. I. |
| Document Type: |
text |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.8.350 |
| Availability: |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.8.350; http://tmo.jpl.nasa.gov/tmo/progress_report/42-135/135I.pdf |
| Rights: |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Accession Number: |
edsbas.3C8D4874 |
| Database: |
BASE |