Multi-mode reconfigurable software defined radio (SDR) architecture for avionic radios

2017 ◽  
Author(s):  
Joe Zambrano ◽  
Abdessamad Amrhar ◽  
Alireza Avakh Kisomi ◽  
Eric Zhang ◽  
Claude Thibeault ◽  
...  
Keyword(s):  
Software Defined Radio ◽  
Reconfigurable Software ◽  
Multi Mode

scholarly journals A reconfigurable software defined ultra-wideband impulse radio transceiver

2010 ◽  
Vol 8 ◽  
pp. 67-73 ◽  
Author(s):  
M. D. Blech ◽  
A. T. Ott ◽  
P. Neumeier ◽  
M. Möller ◽  
T. F. Eibert
Keyword(s):  
Software Defined Radio ◽  
Matched Filter ◽  
Digital Signal ◽  
Impulse Radio ◽  
Ultra Wideband ◽  
Modulation Scheme ◽  
Digital To Analog Converter ◽  
Shift Keying ◽  
Reconfigurable Software ◽  
Radio Transceiver

Abstract. An ultra-wideband (UWB) software defined radio (SDR) implementation is presented. The developed impulse radio (IR) transceiver employs first order bandpass (BP) sampling at a conversion frequency which is four times the channel bandwidth. The subsampling architecture directly provides the RF signal avoiding any non-ideal mixer stages and reduces the requirements of digital signal processing implemented in a field programmable gate array (FPGA). The transmitter consists basically of a multi-Nyquist digital to analog converter (DAC), whereas the implemented matched filter (MF) receiver prototype employs a standard digitizing oscilloscope. This design can be adaptively reconfigured in terms of modulation, data rate, and channel equalization. The reconfigurable design is used for an extensive performance analysis of the quadrature phase shift keying (QPSK) modulation scheme investigating the influence of different antennas, amplifiers, narrowband interferers as well as different equalizer lengths. Even for distances up to 7 m in a multipath environment robust communication was achieved.

Reconfigurable software defined radio in 5g mobile communication systems [Guest editorial]

2015 ◽  
Vol 22 (6) ◽  
pp. 12-14 ◽  
Author(s):  
Ray Yeuh-Min Huang ◽  
Victor C. M. Leung ◽  
Chin-Feng Lai ◽  
Subhas Mukhopadhyay ◽  
Roy X. Lai
Keyword(s):  
Mobile Communication ◽  
Software Defined Radio ◽  
Communication Systems ◽  
Guest Editorial ◽  
Mobile Communication Systems ◽  
5G Mobile Communication ◽  
Reconfigurable Software

Cognitive Engine Architecture for Railway Communications

2010 ◽  
Author(s):  
Ashwin Amanna ◽  
Matthew J. Price ◽  
Soumava Bera ◽  
Manik Gadhiok ◽  
Jeffrey H. Reed
Keyword(s):  
Cognitive Radio ◽  
Software Defined Radio ◽  
Situational Awareness ◽  
Cognitive Architecture ◽  
Test Bed ◽  
Cognitive Engine ◽  
Case Representation ◽  
Optimization Routine ◽  
Reconfigurable Software ◽  
The Relationship

This paper discusses a railway specific cognitive radio that builds upon software defined radio (SDR) platforms to adapt the radio based situational awareness. Cognitive Radio incorporates artificial intelligence based algorithms with reconfigurable software-defined radios that enable automatic adjustments of the radio to improve performance and overcome obstacles the radio may confront in the field (i.e. environmental/man-made interference, occupying the same channel as a user with higher priority, etc.). This paper describes the Railway Cognitive Radio (Rail-CR) architecture and illustrates preliminary results in simulation. The proposed cognitive engine architecture consists of a case-based reasoned (CBR) and a Genetic Algorithm (GA) optimization routine. This paper discusses the overall cognitive architecture, the relationship between the CBR and the GA based on weighted objective functions, and metrics for assessing performance. Methods for case representation, quantifying similarity between cases histories, and techniques for managing case growth rate are presented as well as a proposed test bed SDR platform.

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