Browsing Technical Reports by Subject "Frequency modulated pulses"

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    • On the recording of low frequency signals on magnetic tape 

      Marthins, Jan (NATO. SACLANTCEN, 1962/01)
      A short review of the different methods of recording on magnetic tape is given together with the advantages and disadvantages of each method. Particular emphasis was given to the ability to record low frequencies. This ...

    • Parametric relations on FM sonar 

      Kelly, H. W. K. (NATO. SACLANTCEN, 1961/06)
      The report deals with the simple theory of FM sonar operations and shows how an optimum system may be designed. It also indicates the effects of doppler, the equipment and other factors which may be expected, in practice, ...