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Throughput Analysis for TT&C to and from SV Links in RFI with and without RFI Mitigation

Event Date: April 4, 2016
Speaker: Donald P. Olsen (PhD)
Speaker Affiliation: The Aerospace Corporation
Time: 3:00pm
Location: MSEE 239
Contact Name: Professor James Lehnert
Contact Phone: 765-49-42362
Contact Email: lehnert@ecn.purdue.edu
Open To: ACCEPTABLE FOR ECE 694
Priority: No
School or Program: ECE

Abstract

The author will present a modified COTS (commercial off the shelf) approach to mitigating co-channel RFI on uplinks and downlinks.  The approach is based on the DVB-S2 commercial standard for streaming data up and down and the WiMAX commercial standard adapted for short uplink command messages.  The RFI mitigation is provided by a CDMA overlay of a pseudo random number sequence on both the I and Q modulation constellation axes for either of the above COTS standards.  The numerics are flexible for selecting the spreading symbol and data symbol rate between 16 kbps and 65536 kbps in roughly half octave steps. Several sets of performance curves are provided showing supportable data rates vs interfering source EIRP for several ground terminal EIRPs. 

Biography

Donald Olsen was a Purdue EE graduate student under Dr.  John Lindenlaub from 1965 to January 1969 where his dissertation was on linearizing phase lock loops.  His prior education included a bachelor’s degree in EE from California State Polytechnic College in San Luis Obispo followed by a master degree in EE from Brigham Young University.  All degrees specialized in RF communications.

He was born in Montana spent most of his live in California except for 2 years in Florida and at school.  He currently is a Senior Engineering specialist for The Aerospace Corporation in El Segundo California in the Communications and Cyber Division of the Engineering and Technology Group where they provide tech support to the Space and Missile Systems Center of the United States Air Force.