ISSN:
1572-8129
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract The interface between analog and digital signalprocessing paths in radio receivers and transmitters issteadily migrating toward the antenna as engineers learnto combine the unique attributes and capabilities of DSP with those of traditional communicationsystem designs to achieve systems with superior andbroadened capabilities while reducing system cost.Digital signal processing (DSP) techniques are rapidly being applied to many signal conditioning andsignal processing tasks traditionally performed byanalog components and subsystems in RF communicationreceivers and transmitters [1-4]. The incentive toreplace analog implementations of signal processingfunctions with DSP-based processing includes reducedcost, enhanced performance, improved reliability, easeof manufacturing and maintenance, and operatingflexibility and configurability [5]. Technologies thatfacilitate cost-effective DSP-based implementationsinclude a very large market base supportinghigh-performance programmable signal processing chips[6], field programmable gate arrays (FPGA),application-specific integrated circuits (ASICs), andhigh-performance analog-to-digital and digital-to-analogconverters (ADC and DAC respectively) [7]. The optimumpoint for inserting DSP in a signal processing chainis determined by matching the system performancerequirements to bandwidth and signal-to-noise ratio(i.e., speed and precision) limitations of the signal processors and the signal converters. In thispaper we review how clever algorithmic structuresinteract with DSP hardware to extend the range andperformance of DSP-based processing in RF transmitters and receivers.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1018817502812
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