Title :
Fast wideband search for spurious responses
Author :
Cassidy, Kevin ; Snell, Jay
Author_Institution :
Tektronix Federal Syst., Inc., Beaverton, OR, USA
Abstract :
A technique for quickly searching frequencies in a signal path to find and measure low-level spurs is described. It couples a wideband tuned receiver with a tuned digital, parallel filter bank analyzer to greatly reduce spur testing times. The receiver is step-tuned across the region of frequencies to be searched, and at each step the filter bank is step-tuned across the IF output. An example system is described, and search time and sensitivity are discussed.<>
Keywords :
automatic test equipment; automatic testing; electronic equipment testing; signal generators; spectral analysers; IF output; search time; sensitivity; spectral analyser; spur testing; spurious responses; step tuned receiver; tuned digital parallel filter bank analyser; wideband search; wideband tuned receiver; Bandwidth; Digital signal processing; Electronic equipment testing; Filter bank; Frequency; Narrowband; Signal generators; Signal resolution; System testing; Wideband;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
