DSSS Transmission Demonstrator

Direct Sequence Spread Spectrum data transmission system over Multipath Fading Channels
 

DSSS Transmission Demonstrator



During the year 2015 a demonstrator of a Direct Sequence Spread Spectrum data transmission system over Multipath Fading Channels with high Doppler rates will be implemented. The Goals of this demonstrator are to implement and practically test a transmission system, which has been prior designed and simulated, and to study the rapid prototyping capabilities using the 3rd Generation of USRPs by Ettus Research and GNU Radio.

Key Facts:

  • Based on USRP X-Series
  • Up to 120 MHz baseband bandwidth
  • Center frequencies from DC to 6 Ghz
  • Real-time capable through:
    • high bandwidth of (customizable) DSP the USRPs FPGA and
    • the high performance of GNU Radio
  • Fast implementation of new design through:
    • large variety of existing GNU Radio Code
    • usage of preexisting intellectual property for the FPGA design
    • ability to live test design segments with prerecorded signals and signals from the RF   

 

EttusResearch USRP X300

Power Delay Profile, estimated with Draft 1 of the Demonstrator