Now showing items 1-3 of 3

    • Acoustic characterization of a shallow water site 

      Cable, P.; Marshall, W.; Kooij, Theo; Skarda, G.; Waldman, K. (NATO. SACLANTCEN, 1993/08)
      Results are presented from an exercise aimed at providing a low frequency active sonar environmental characterization of a specific shallow water site in the Gulf of Mexico. Downward refracting acoustic transmission and ...
    • Spatial and temporal coherence in a long range, upslope environment 

      DeDominicis, Theresa S.; Kooij, Theo (NATO. SACLANTCEN, 1993/08)
      In an active acoustic test conducted off the USA Pacific Coast in November-December 1991, a low-frequency source, kept stationary over the deep basin, insonified from long range the coastal slope and shelf. An autonomous, ...
    • The influence of quantizing and sampling on the signal-to-noise ratio of a complex correlator 

      Kooij, Theo; Laval, Robert (NATO. SACLANTCEN, 1967/09)
      The combined effects of sampling and phase-quantizing of phase- modulated signals in Gaussian noise are studied and expressed in terms of the output signal-to-noise ratio of a matched filter correlator. The obtained results ...