ARTICLES

Testing Digital Communications Transmitters and Receivers

Test methods for today's more spectrally efficient communications hardware
TUTORIAL TESTING DIGITAL COMMUNICATIONS TRANSMITTERS AND RECEIVERS HELEN WRIGHT Agilent Technologies Liberty Lake, WA There is a fundamental tradeoff in communication systems. Simple hardware can be used in transmitters and receivers to communicate information. However, this method uses a lot of spectrum, which limits the number of users. Alternatively,...
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Useful Filtering Techniques to Save Scarce Spectrum in Communications Systems

Filtering techniques that significantly reduce transmitted banwidth without losing the content of digital data
Useful Filtering Techniques to Save Scarce Spectrum in Communications Systems Helen Wright Hewlett-Packard Co., Microwave Instruments Division Santa Rosa, CA Most communications systems fall into one of three categories: those that are bandwidth efficient, power efficient or cost efficient. Bandwidth efficiency describes the ability of a modulation scheme to...
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