Half-Bit Offset Decision Frequency Detection of Differentially Encoded Gmsk Signals

K. Ohno, F. Adachi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


An efficient frequency detection scheme for GMSK signal reception is described. In this detection scheme, a three-level eye opening of the frequency detector output at the decision instant offset by a half-bit is used to improve bit error rate (BER) performance. Experimental results for 16 kbit/s differentially encoded GMSK transmission with a premodulation filter bandwidth-bit duration product (Bb T) =0.25 (typical for mobile radio applications) show that the half-bit offset decision frequency detection scheme can significantly improve BER performance, in comparison with conventional detection schemes.

Original languageEnglish
Pages (from-to)1311-1312
Number of pages2
JournalElectronics Letters
Issue number24
Publication statusPublished - 1987 Jan 1
Externally publishedYes


  • Mobile radio systems
  • Modulation
  • Radio links

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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