LEADER 02411nam 2200397 450 001 9910136317203321 005 20231206213944.0 010 $a1-5044-0238-3 024 70$a10.1109/IEEESTD.1966.7393375 035 $a(CKB)3710000000578030 035 $a(NjHacI)993710000000578030 035 $a(EXLCZ)993710000000578030 100 $a20231206d1966 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aIEEE No 268-1966 $eIEEE Recommended Practice for Units in Published Scientific and technical Work /$fIEEE 210 1$aPiscataway, NJ :$cIEEE,$d1966. 215 $a1 online resource (8 pages) 225 1 $aIEEE Std ;$vNumber 268-1966 330 $aThis document is a companion to Technical Committee Report on Recommended Practices for Burst Measurements in the Time Domain, IEEE No. 257, May 1964. In the time domain document, bursts are defined and particular attention is placed on their duration and magnitude. The use of additional characteristics may prove desirable when investigating both cause and effect of a burst. Mathematical transformations have been widely used to bring out particular characteristics of signals. Perhaps the one most commonly used is the Fourier Transform, which defines the spectrum of signals. The energy density spectrum of a burst, a quantity derived from the Fourier Transform, is the subject of this report. Other transformations such as those of Hilbert or Henkel, may be used to display different characteristics of a burst but they will not be considered here. Sampling the energy density spectrum is the key concept of this document. It constitutes the basis by which this spectrum can be characterized comprehensively by a practical number of measurements. The sampling theorems in the frequency domain are, therefore, given detailed consideration in Appendices to the extent necessary for understanding the measurement methods to be discussed. 410 0$aIEEE Std ;$vNumber 268-1966. 517 $aIEEE No 268-1966 606 $aUnits of measurement 606 $aMeasurement$xStandards 615 0$aUnits of measurement. 615 0$aMeasurement$xStandards. 676 $a530.8 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a9910136317203321 996 $aIEEE No 268-1966$93647224 997 $aUNINA