SOUTHWEST RESEARCH INSTITUTE

Communications Engineering

Wideband HF Arbitrary

Signal Generator

 

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A high-performance HF signal generator was designed by Southwest Research Institute (SwRI) as part of the test equipment for a specialized HF receiver. The generator is capable of producing up to 250 different signals in any 1 MHz band within the 3 to 30 MHz HF band. The transmitted signal or signals are truly arbitrary, produced at an IF range of 0.5 to 1.5 MHz, with a DAC update rate of 5 million samples per second.

 

Custom software was also developed to facilitate signal creation within certain parameters. Each signal had unique

  • Turn-on and turn-off times

  • Power levels

  • Baud rates

  • Modulation schemes including

    • OOK (Morse coded)

    • FSK

    • PSK-4 and 8

    • QAM-16 and 64

The system achieved 75 dB SFDR, with a THD of 70 dB and a noise floor of 85 dB below full power.

 

For more information about wideband HF arbitrary signal generator capabilities at SwRI or how you can contract with SwRI, please contact Mike Pilcher at mpilcher@swri.org or (210) 522-2083.  We can offer you the best approach for solving your specialized automated test system engineering problem.

 

Contact Information

Mike Pilcher

Communications Engineering

(210) 522-2083

mpilcher@swri.org

Related Terminology

communication devices

communication networks

radar systems

communication systems

RF systems

radio frequency engineering

RF engineering

analysis

specification development

circuit design

fabrication

consulting

COTS integration

custom instruments

test systems

prototype development

modeling

simulation

reverse engineering

replacement engineering

communications engineering

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

July 21, 2008