NDLI: Parallel digital modem using multirate digital filter banks

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Parallel digital modem using multirate digital filter banks

Content Provider	NASA Technical Reports Server (NTRS)
Author	Sadr, Ramin Hinedi, Sami Vaidyanathan, P. P. Raphaeli, Dan
Copyright Year	1994
Description	A new class of architectures for an all-digital modem is presented in this report. This architecture, referred to as the parallel receiver (PRX), is based on employing multirate digital filter banks (DFB's) to demodulate, track, and detect the received symbol stream. The resulting architecture is derived, and specifications are outlined for designing the DFB for the PRX. The key feature of this approach is a lower processing rate then either the Nyquist rate or the symbol rate, without any degradation in the symbol error rate. Due to the freedom in choosing the processing rate, the designer is able to arbitrarily select and use digital components, independent of the speed of the integrated circuit technology. PRX architecture is particularly suited for high data rate applications, and due to the modular structure of the parallel signal path, expansion to even higher data rates is accommodated with each. Applications of the PRX would include gigabit satellite channels, multiple spacecraft, optical links, interactive cable-TV, telemedicine, code division multiple access (CDMA) communications, and others.
File Size	3185624
Page Count	112
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950016061
Archival Resource Key	ark:/13960/t4fn63j9h
Language	English
Publisher Date	1994-08-15
Access Restriction	Open
Subject Keyword	Multiplexing Digital Systems Block Diagrams Computer Systems Design Receivers Computerized Simulation Architecture Computers Digital Filters Computer Programs Functional Design Specifications Rates Per Time Parallel Computers Symbols Signal Processing Modems Computer Aided Design Signal Detection Demodulation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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