02 Oct 2014
Simulate defense threats with off-the-shelf signal generator
Keysight Technologies has unveiled the N5193A UXG agile signal generator, an off-the-shelf instrument that enables highly realistic and scalable threat simulations for aerospace/defense applications.
The UXG is also a dependable slide-in replacement for the legacy fast-switching local oscillators (LOs) often used in large, dedicated simulation systems.
To produce realistic multi-threat scenarios, the UXG can switch frequency, amplitude and phase settings in as little as 250 ns, and it provides built-in phase repeatability. This is made possible by direct digital synthesis technology and a Keysight-proprietary digital-to-analog converter.
When simulating advanced radar signals, the UXG can generate pulses as narrow as 5 ns with 1 ns rise/fall times and an 80 dB on/off ratio. The signal generator can also produce chirps as wide as 10 to 25 percent of the carrier frequency. To mimic antenna scan patterns, the optional attenuator provides 80 dB of agile amplitude changes and 120 dB of overall amplitude range.
“In development and mission-data reprogramming, better testing performed sooner enables higher confidence in the performance of electronic-warfare systems,” said Andy Botka, vice president and general manager of Keysight’s Microwave and Communications Division. “Because the UXG is fluent in the language of EW systems, it accelerates the integration of newly acquired intelligence into up-to-date signal scenarios.”
With the ability to directly understand pulse descriptor words (PDWs), the UXG reduces programming time. For system testing, pre-defined scenarios can be created and stored in memory for playback using list mode, and on-the-fly control can be triggered by external events.
At three rack units (3U) high, the generator is a slide-in replacement for legacy fast-switching sources. To minimize the need for software changes, the standard generators code-compatible with Aeroflex sources. It also can be connected directly with existing wiring and cabling through trigger- and hardware-connector compatibility and a fast BCD input/output interface.
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