A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation
This paper describes a digital baseband designed for use in a non-coherent IR-UWB system. Owing to the nonlinear statistics introduced by the energy-sampling RF front-end, the baseband employs a new quadratic correlation technique that achieves comparable performance to a matched filter classifier,...
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2010
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| Online Access: | http://hdl.handle.net/1721.1/59998 https://orcid.org/0000-0002-5977-2748 |
| _version_ | 1811078923558060032 |
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| author | Chandrakasan, Anantha P. Mercier, Patrick Philip Bhardwaj, Manish Daly, Denis C. |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Chandrakasan, Anantha P. Mercier, Patrick Philip Bhardwaj, Manish Daly, Denis C. |
| author_sort | Chandrakasan, Anantha P. |
| collection | MIT |
| description | This paper describes a digital baseband designed for use in a non-coherent IR-UWB system. Owing to the nonlinear statistics introduced by the energy-sampling RF front-end, the baseband employs a new quadratic correlation technique that achieves comparable performance to a matched filter classifier, with the added benefit of being robust to SNR estimation errors. Additionally, “alias-free codes” are introduced that allow for pulse-level synchronization accuracy without requiring any increase in front-end complexity. Fabricated in a 90 nm CMOS process, the digital baseband utilizes significant parallelism in addition to clock and data gating to achieve low-power operation, with supply voltages as low as 0.55 V. At a clock frequency of 32 MHz, the baseband requires 14-to-79 μs to process a preamble during which it consumes an average power of 1.6 mW, while payload demodulation requires 12 pJ/bit. |
| first_indexed | 2024-09-23T11:07:22Z |
| format | Article |
| id | mit-1721.1/59998 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:07:22Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/599982022-10-01T01:23:48Z A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation Chandrakasan, Anantha P. Mercier, Patrick Philip Bhardwaj, Manish Daly, Denis C. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Microsystems Technology Laboratories Chandrakasan, Anantha P. Chandrakasan, Anantha P. Mercier, Patrick Philip This paper describes a digital baseband designed for use in a non-coherent IR-UWB system. Owing to the nonlinear statistics introduced by the energy-sampling RF front-end, the baseband employs a new quadratic correlation technique that achieves comparable performance to a matched filter classifier, with the added benefit of being robust to SNR estimation errors. Additionally, “alias-free codes” are introduced that allow for pulse-level synchronization accuracy without requiring any increase in front-end complexity. Fabricated in a 90 nm CMOS process, the digital baseband utilizes significant parallelism in addition to clock and data gating to achieve low-power operation, with supply voltages as low as 0.55 V. At a clock frequency of 32 MHz, the baseband requires 14-to-79 μs to process a preamble during which it consumes an average power of 1.6 mW, while payload demodulation requires 12 pJ/bit. Natural Sciences and Engineering Research Council of Canada United States. Defense Advanced Research Projects Agency (HI-MEMS under Contract FA8650-07-C-7704) 2010-11-17T16:55:06Z 2010-11-17T16:55:06Z 2010-06 2009-12 Article http://purl.org/eprint/type/JournalArticle 0018-9200 INSPEC Accession Number: 11359467 http://hdl.handle.net/1721.1/59998 Mercier, P.P. et al. “A Low-Voltage Energy-Sampling IR-UWB Digital Baseband Employing Quadratic Correlation.” Solid-State Circuits, IEEE Journal of 45.6 (2010): 1209-1219. ©2010 IEEE. https://orcid.org/0000-0002-5977-2748 en_US http://dx.doi.org/10.1109/JSSC.2010.2046245 IEEE Journal of Solid-State Circuits Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Chandrakasan, Anantha P. Mercier, Patrick Philip Bhardwaj, Manish Daly, Denis C. A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title | A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title_full | A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title_fullStr | A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title_full_unstemmed | A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title_short | A low-voltage energy-sampling IR-UWB digital baseband employing quadratic correlation |
| title_sort | low voltage energy sampling ir uwb digital baseband employing quadratic correlation |
| url | http://hdl.handle.net/1721.1/59998 https://orcid.org/0000-0002-5977-2748 |
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