We propose a novel software-defined radio implementation of a four-channel transceiver testbed with signalling-wavelength-spaced antennas. The radio frequency side of the system is implemented using commercial off-the-shelf products, whereas the baseband processing portion of the system is implemented on a pair of Altera® Stratix® II EP2S180 development boards with high-speed Analog Devices analog-to-digital converter daughter boards. The Altera® field programmable gate array is used to implement digital signal processing algorithms and to affect centralized control over the entire system. A goal was to create a testbed for algorithms and radio channel measurements.
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