• DocumentCode
    1224731
  • Title

    An Optimum Squaring Loop Prefilter

  • Author

    Layland, J.

  • Author_Institution
    Jet Propulsion Lab., Pasadena, CA
  • Volume
    18
  • Issue
    5
  • fYear
    1970
  • fDate
    10/1/1970 12:00:00 AM
  • Firstpage
    695
  • Lastpage
    697
  • Abstract
    Squaring loops are often discussed as a means of establishing a coherent carrier reference for bi-phase PSK modulation. The optimal presquaring filter is derived under the assumptions that the modulating spectrum as narrow with respect to the carrier frequency and that the phase-locked loop bandwidth is much narrower than the modulating spectrum.
  • Keywords
    Background noise; Bandwidth; Differential quadrature phase shift keying; Filters; Frequency shift keying; Interference; Phase locked loops; Phase modulation; Phase shift keying; Signal to noise ratio;
  • fLanguage
    English
  • Journal_Title
    Communication Technology, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9332
  • Type

    jour

  • DOI
    10.1109/TCOM.1970.1090398
  • Filename
    1090398