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in subjects: "Sonar"  
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Application of Polynomial and Radial Basis Function Maps to Signal Masking

Description: The objective of this research was to develop and demonstrate a technique for encrypting information by using a masking signal that closely approximates local ambient noise. Signal masking techniques developed to date have used nonlinear differential equations, spread spectrum, and various modulation schemes to encode information. While these techniques can effectively hide a signal, the resulting masks may not appear as ambient noise to an observer. The advantage of the proposed technique over… more
Date: January 1, 1998
Creator: Damiano, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sampled data spectroscopy (SDS): A new technology for radiation instrumentation

Description: A new instrumentation architecture for radiation spectroscopy is in the early stages of development at Savannah River. Based upon the same digital sampling techniques used in sonar and radar, sampled data spectroscopy (SDS) has produced Na(I)/PMT spectra with resolution comparable to conventional PHA systems. This work has laid the foundation for extending SDS techniques to solid state detector applications as well. Two-dimensional SDS processes raw, unintegrated detector output pulses to produ… more
Date: January 1, 1992
Creator: Odell, D.M.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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