Design and Evaluation of Frequency-Agile Multi-Standard Direct RF Digitizing Receivers for Automotive Use
2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)(2015)
摘要
This paper presents the design and evaluation of a ΣΔ-modulator based analog-to-digital converter (ADC) for direct RF digitization within a multi-standard vehicular connectivity architecture. Upcoming trends and changes which will require new architecture concepts for connectivity in the automotive domain are discussed. Hardware requirements are derived. Based on these goals, a reconfigurable ADC is designed with capabilities of digitizing all relevant wireless services for vehicular use within the frequency range of 600 MHz to 6GHz. A performance assessment is done based on evaluation of the signal to noise ratio within a realistic use case where multiple services at different frequencies are successfully digitized.
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关键词
Vehicular Connectivity, SDR, Multi-Standard, Direct RF Digitization, ADC, Sigma Delta-modulator
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