SOFTWARE DEFINED RADIOcci.usc.edu/wp-content/uploads/2017/09/CLASS-3-SOFTWARE-TOOLS.pdfUSC SDR...
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SOFTWARE DEFINED RADIO USR SDR WORKSHOP, SEPTEMBER 2017 PROF. MARCELO SEGURA SESSION 1: SOFTWARE TOOLS 1
Transcript of SOFTWARE DEFINED RADIOcci.usc.edu/wp-content/uploads/2017/09/CLASS-3-SOFTWARE-TOOLS.pdfUSC SDR...
SOFTWARE DEFINED RADIOUSR SDR WORKSHOP, SEPTEMBER 2017
PROF. MARCELO SEGURA
SESSION 1: SOFTWARE TOOLS
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USC SDR WORKSHOP
UNIVERSAL HARDWARE DRIVER
• USRP
• Libusrp
• Libusrp-gnuradio
• Python dboard code
• C++ dboard code
• Usrp_* examples and utils
• USRP2
• Libusrp2 (linux only)
• libusrp2-gnuradio
• C dboard code in FW
• Usrp2_* examples and utils
• NOT SCALE
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BRIEF HISTORY
USC SDR WORKSHOP
UHD
• UHD is an C++ API, that allow to interface a host with any USRP boards.
• Instantiate device object on Matlab or GNURadio.
• SET/GET FUNCTION
• SEND/ RECEIVE SAMPLES (HOST: Ring buffer, SDR: BRAM FIFO)
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DEFINITION
USC SDR WORKSHOP
MATLAB SDR DESIGN
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NEXT GEN WIRELESS DEVELOPMENT
REQUIRES AT LEAST 7 DIFFERENT SKILLS!!!
USC SDR WORKSHOP
MATLAB SDR DESIGN
• We primarily use Comm & DSP toolbox
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TOOLBOX
USC SDR WORKSHOP
MATLAB SDR DESIGN
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DESIGN WORKFLOW
USC SDR WORKSHOP
MATLAB SDR DESIGN
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PROTOTYPING WORKFLOW
USC SDR WORKSHOP
MATLAB SDR DESIGN
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PROTOTYPING WORKFLOW
USC SDR WORKSHOP
MATLAB SDR DESIGN
• Create your own IP core
• Performance
• Interface speed
• Hardware accelerators
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PROTOTYPING WORKFLOW
USC SDR WORKSHOP
UHD + MATLAB
• Matlab System objects are the base building block to communicate with SDR.
• System objects are designed specifically for implementing and simulating dynamic systems with inputs that
change over time.
• Matlab objects have a predefined structure that allow to control and send/receive date from SDR.
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DEFINITION
USC SDR WORKSHOP
UHD + MATLAB
• UHD ON A SYSTEM BLOCK
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SUPPORT PACKAGE
USC SDR WORKSHOP
UHD + MATLAB
• The sampling rates should be matched with the master clock rate.
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DIGITAL UP/DOWN CONVERSION RATES
USC SDR WORKSHOP
UHD + MATLAB
• SDRu RX block:
• Serial Number of B200 mini
• Channel Mapping: 1 SISO, [1 2] MIMO
• Center Freq: LO frequency
• LO Offset: offset freq to avoid LO leakage or self interference.
• Gain: overall gain including both analog and digital components.
• Transport data: 16 bit default
• Samples per frame: to optimize Ethernet packet.
• Burst mode: to test systems that cannot run on real time, avoiding overrun or
Underrun.
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SUPPORT PACKAGE
USC SDR WORKSHOP
UHD + MATLAB
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TX/RX BLOCK CONFIG
USC SDR WORKSHOP
MATLAB
• Lab 1 : INSTALLING B200 on MatLab
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GETTING START
