Title :
Extending the dynamic range of RF receivers using nonlinear equalization
Author :
Goodman, Joel ; Miller, Benjamin ; Herman, Matthew ; Vai, Michael ; Monticciolo, Paul
Author_Institution :
MIT Lincoln Lab., Lexington, MA
Abstract :
Systems currently being developed to operate across wide bandwidths with high sensitivity requirements are limited by the inherent dynamic range of a receiver´s analog and mixed-signal components. To increase a receiver´s overall linearity, we have developed a digital nonlinear equalization (NLEQ) processor which is capable of extending a receiver´s dynamic range from one to three orders of magnitude. In this paper we describe the NLEQ architecture and present measurements of its performance.
Keywords :
equalisers; radio receivers; RF receivers; digital nonlinear equalization; mixed-signal components; sensitivity requirements; wide bandwidths; Bandwidth; Computer architecture; Distortion measurement; Dynamic range; Filters; Military computing; Nonlinear distortion; Polynomials; Radio frequency; Signal generators;
Conference_Titel :
Waveform Diversity and Design Conference, 2009 International
Conference_Location :
Kissimmee, FL
Print_ISBN :
978-1-4244-2970-7
Electronic_ISBN :
978-1-4244-2971-4
DOI :
10.1109/WDDC.2009.4800349
