Impulse response characterization of the propagation and scattering environment in through-wall applications using an S-band noise radar

Sonny Smith, Ram Mohan Narayanan

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

2 Scopus citations

Abstract

An ultrawideband (UWB) random noise radar operating at S-Band has been developed for through-wall detection, ranging, tracking, and imaging of targets. The system transmits a bandlimited UWB noise signal and accomplishes detection by cross-correlating the reflected signal with a time-delayed replica of the transmit signal. Noise radars have been found eminently suitable for most though-wall radar applications. Yet, in such scenarios, the antennas and the barrier (i.e. the wall) cause distortions in the return signal due to their frequency-dependent radiation and loss characteristics, respectively. In this paper, we explore the feasibility of characterizing the impulse response of various barriers and obstructions via measurements with the S-Band noise radar. As is well known, the entire operation of a linear system (e.g., antenna or barrier) can be captured in its impulse response h(t), i.e. the output of the system when excited by an impulse function at its input, δ(t). Thus, impulse response testing, generally, provides a complete diagnosis of the system over its entire mode of operation. This paper will present results on our impulse response characterization of the propagation and scattering environment through a barrier by the atypical method of cross correlation of noise signals. In addition, we will introduce a simple electromagnetic forward model for wall propagation and accompanying simulations.

Original languageEnglish (US)
Title of host publicationRadar Sensor Technology XVI
DOIs
StatePublished - Dec 1 2012
EventRadar Sensor Technology XVI - Baltimore, MD, United States
Duration: Apr 23 2012Apr 25 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8361
ISSN (Print)0277-786X

Other

OtherRadar Sensor Technology XVI
CountryUnited States
CityBaltimore, MD
Period4/23/124/25/12

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Impulse response characterization of the propagation and scattering environment in through-wall applications using an S-band noise radar'. Together they form a unique fingerprint.

  • Cite this

    Smith, S., & Narayanan, R. M. (2012). Impulse response characterization of the propagation and scattering environment in through-wall applications using an S-band noise radar. In Radar Sensor Technology XVI [836118] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8361). https://doi.org/10.1117/12.922457