Wideband HF Arbitrary Signal Generator
Communications & Embedded Systems
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.
Specialized HF Receivers
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.
Related Terminology
high-performance high-frequency signal generator • specialized HF receivers • wideband high frequency arbitrary signal generators • arbitrary transmitted signals • communications engineering • automation and data systems • embedded systems
