Towards A Real-Time UWB MIMO Testbed for Sensing and Communications

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Executive Summary

This paper reports a research testbed of real-time Ultra-WideBand (UWB) Multiple-Input Multiple-Output (MIMO) radio. In the receiver design, the UWB MIMO receiver supports up to eight channels, where each channel is equipped with an Analog-To-Digital Converter (ADC) with 8-bit resolution and sampling rate up to 3 Giga samples per second (Gsps). The transmitter is able to transmit two independent arbitrary waveforms with bandwidth up to 500 MHz. Multiple high performance Field Programmable Gate Array (FPGA) chips are utilized as real-time processors at both transmitter and receiver to handle huge amount of high speed data. As part of the whole system, the UWB MIMO receiver baseband is developed and tested using pulse based UWB signals.

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