Space communication and radar with lasers

W.J. Witteman

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)


Sensitive heterodyne detection with lasers applied .to radar and satellite communication is seriously hampered by the large electronic bandwidth due to random Doppler shift and frequency instability. These drawbacks can be circumvented by dual signal heterodyne detection. The system consists of mixing the local oscillator with two signal beams and the lock-in amplification at the beat frequency of the two intermediate frequencies. The signal modulation is demodulated by the lock-in amplification. A detailed analysis of the accompanying noise is given. The derived NEP is much smaller than that of a conventional heterodyne system. As examples, the system is applied to radar and space communication.
Original languageEnglish
Title of host publicationLasers and Applications
Place of PublicationBellingham, WA, USA
ISBN (Print)9780819459657
Publication statusPublished - 28 Aug 2005
EventLasers and Applications 2005 - Warsaw, Poland
Duration: 28 Aug 20052 Sep 2005

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


ConferenceLasers and Applications 2005
Other28 August - 2 September 2005


  • METIS-310753
  • IR-96124

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