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ARTICLES

Testing Digital Communications Transmitters and Receivers

Test methods for today's more spectrally efficient communications hardware
Helen Wright
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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
Helen Wright
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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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