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Digital front end for satellite LEO applications on W band
| Publication type | Conference paper |
|---|---|
| Year of publication | 2002 |
| Authors | Michele Caponi, Fabrizio Frescura, Euro Sereni, and Alessio Barbini |
| Title | Digital front end for satellite LEO applications on W band |
| Conference name | IEEE 56th Vehicular Technology Conference, 2002 (VTC 2002-Fall) |
| Volume | 4 |
| Issue | |
| Pages | 2308–2312 |
| Editor | |
| Publisher | IEEE |
| Date | September 2002 |
| Place | Vancouver, BC, Canada |
| ISSN number | 1090-3038 |
| ISBN number | 0-7803-7467-3 |
| Key words | digitale, dsp, front-end |
| Abstract | We present an Earth digital receiver for LEO satellite applications in W band (80-90 GHz), in order to design an architecture robust to frequency offset. The maximum Doppler frequency is proportional to the relative speed and the carrier frequency, therefore in W band this value is large, approximately 2 MHz. According to this phenomenon, the recovery of the received signal carrier is very difficult. Starting from the IF (intermediate frequency) stage, we present a digital method to estimate and correct the Doppler-shift directly in the base band. In particular, we propose an innovative algorithm based on a two step Doppler-recovery. We also provide simulation results indicating the accuracy of this method and a prototype system (based around DSP C6416) for real time carrier recovery with unknown Doppler-shift. |
| URL | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1040632 |
| DOI | http://dx.doi.org/10.1109/VETECF.2002.1040632 |
| Other information | |
| Paper |