HP a-101 free download

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HP Archive This vintage Hewlett Packard document was preserved and distributed by www. hparchive.com Please visit us on the web ! On-line curator: Glenn Robb This document is for FREE distribution only! Analysis of Spread Spectrum Signals Using a Time & Frequency Analyzer David Chu R.F. Schneider Santa Clara Division RF & Microwave Measurement Symposium and Exhibition Flin- HEWLETT ~~ PACKARD www.HPARCHIVE.com ABSTRACT The traditional method of capturing a non-repetitive spread spectrum signal is by digitizing it's waveform. This paper describes an alternate and more efficient method based on digitizing the phase progession of the signal using counters which can be read on-the-fly. By curve-fitting the data, both carrieres) and modulation, including FSK, PSK, Chirp and AGILE, can be recovered. www.HPARCHIVE.com Analysis of Spread Spectrum Signals Using a Time & Frequency Analyzer David Chu R. F. Schneider Santa Clara Division EXAMPLES OF SPREAD SPECfRUM SIGNALS Examples of Spread Spectrum Signals Modem Radar, Communication, and Navigation systems use Waveform Coding Frequency Coding spread spectrum signals to enhance system performance. Modem radars require high resolution that is obtained by