SoftwareDefined Radio

1
Software-Defined Radio

• Sponsor CALIT-2
• Mentor Professor Bill Hodgkiss
• Team members
• John Burch
• Isaac Caldwell
• Matt Costa

2
Agenda

• Introduction
• Project background
• Project features
• Research on platforms
• Next steps

3
Gantt Chart
4
What is an SDR?

• Purpose is to eliminate application-specific
  hardware in favor of easily replaceable software.
• Becoming the norm, i.e. the militarys Joint
  Tactical Radio System.

http//gnuradio.org
5
Statement of Work

• Features
• Create an SDR using available HW/SW platform
  online
• Ability to transmit/receive RF communication
• Specifications
• RF transmitter/receiver boards with DAC/ADC
• Motherboard FPGA DSP
• Interface with computer for signal processing

6
Statement of Work (2)

• Deliverables
• Research on possible implementations of SDRs
• Completed, functional SDR
• Written report/documentation
• Resources Required
• SDR hardware, including transmitter/receiver
  boards (with ADC/DAC), motherboard
• Potential use of CALIT lab

7
The Weeks Progress

• Research had to be done on the possible
  platforms.
• GNU Radio
• Rice Univ.s WARP
• National Instruments
• High Performance SDR

http//sine.ni.com
8
GNU Radio (USRP)

• Universal Software Radio Peripheral
• 800-900 for a single unit
• Mother/daughterboard
• Daughterboard determines frequency band
• http//www.ettus.com

9
Rice WARP Board

• Motherboard/daughterboard setup
• Includes FPGA chip
• 10,000
• http//warp.rice.edu

10
National Instruments SDR

• FPGA based
• 7000
• Front-end downconverter
• 20 MHz bandwidth
• http//www.ni.com

11
High Performance SDR

• Modular based design with common backplane
• 720 for complete unit
• Max freq of 65 MHz
• http//hpsdr.org

12
Next Steps

• Finalize decision on platform to be used
• Place hardware order as soon as possible
• Begin work on software

13
Summary

• Software-defined radios are becoming an
  increasingly important part of modern
  communications.
• Research done on various possible platforms.
• Work on software implementation to begin.

http//www.ettus.com