Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding

Russell Vela, Gordon Woodington, Mark R. Deluca, Ram M. Narayanan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Frequency spectrum responses of targets are of importance in UWB radar for target identification and recognition. As technology's digitization rate of analog sources increases, direct acquisition of wider bandwidths is becoming possible. Through conversion to the frequency domain, wider bandwidth spectral responses for targets can be produced. However, to directly digitize higher frequencies with UWB signals directly (i.e., = 4 GHz), the technology is somewhat limited. This paper will present a technique which utilizes both hardware and software to produce a lower bandwidth signal (e.g., 1.5 GHz), which contains larger spectral bandwidth information (e.g., 6 GHz). The technique utilizes a double band folding methodology implemented in hardware, or software, to translate larger bandwidths into lower bandwidths for direct digitization. The generated lower bandwidth will have a unique spectral response containing the superimposed amplitudes of the larger bandwidth transmitted signal. This folded spectrum can then be used in applications such as target recognition and identification. Simulated and experimental results will be presented to evaluate the advantages and disadvantages of such an approach.

Original languageEnglish (US)
Title of host publicationRadar Sensor Technology XV
DOIs
StatePublished - Jul 13 2011
EventRadar Sensor Technology XV - Orlando, FL, United States
Duration: Apr 25 2011Apr 27 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8021
ISSN (Print)0277-786X

Other

OtherRadar Sensor Technology XV
CountryUnited States
CityOrlando, FL
Period4/25/114/27/11

Fingerprint

Digitization
Analog to digital conversion
Folding
Ultra-wideband (UWB)
folding
Frequency bands
Bandwidth
broadband
bandwidth
Target Identification
Spectral Response
Target Recognition
spectral sensitivity
hardware
Hardware
computer programs
Target
Software
target recognition
Frequency Spectrum

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Vela, R., Woodington, G., Deluca, M. R., & Narayanan, R. M. (2011). Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding. In Radar Sensor Technology XV [802115] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8021). https://doi.org/10.1117/12.887075
Vela, Russell ; Woodington, Gordon ; Deluca, Mark R. ; Narayanan, Ram M. / Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding. Radar Sensor Technology XV. 2011. (Proceedings of SPIE - The International Society for Optical Engineering).
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Vela, R, Woodington, G, Deluca, MR & Narayanan, RM 2011, Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding. in Radar Sensor Technology XV., 802115, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8021, Radar Sensor Technology XV, Orlando, FL, United States, 4/25/11. https://doi.org/10.1117/12.887075

Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding. / Vela, Russell; Woodington, Gordon; Deluca, Mark R.; Narayanan, Ram M.

Radar Sensor Technology XV. 2011. 802115 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8021).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Vela R, Woodington G, Deluca MR, Narayanan RM. Direct digitization of ultra-wideband (UWB) noise signals using frequency band folding. In Radar Sensor Technology XV. 2011. 802115. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.887075