Receiver operating characteristics for the coherent UWB random noise radar

M. Dawood, R. M. Narayanan

Research output: Contribution to journalArticlepeer-review

76 Scopus citations


An ultrawideband (UWB) random-noise radar operating in the 1-2 GHz frequency band has been developed and field-tested at a 200 m range at the University of Nebraska. A unique heterodyne correlation technique based on a delayed transmitted waveform using a photonic delay line has been used to inject coherence within this system. The performance of this radar, assuming a point target, has been investigated from a statistical point of view by developing the theoretical basis for the system's receiver operating characteristics (ROC). Explicit analytical expressions for the joint probability density function (pdf) of the in-phase (I) and quadrature (Q) components of the receiver output have been derived under the assumption that the input signals are partially correlated Gaussian processes. The pdf and the complementary cumulative distribution function (cdf) for the envelope of the receiver output are also derived. These expressions are used to relate the probability of detection (Pd) to the probability of false alarm (Pf) for different numbers of integrated samples, and the results are analyzed.

Original languageEnglish (US)
Pages (from-to)586-594
Number of pages9
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number2
StatePublished - Apr 2001

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering


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