대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

주파수와 타이밍 옵셋에 의한 빠른 주파수 호핑 시스템의 임계값 분석

Threshold level analysis of the FFH-MA system using noncoherent FSK modulation under the presence of frequency and timing offsets

  • Jeungmin Joo (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Yeomin Yoon (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Miheung Choe (Dept. of Information and Communication, Kwangju institute of Science and Tech.) ;
  • Lee, Kwangeog (Agency for Defense Development) ;
  • Kim, Kiseon (Dept. of Information and Communication, Kwangju institute of Science and Tech.)
  • 발행 : 2003.07.01
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초록

Under the prsence of the frequency and timing offset, we evaluate the BER performance of the FFH-MA system using noncoherent M-ary FSK modulation in the Rayleigh fading channel. The numerical resuts show that while the frequency and timing offset increases at a given SNR, the BER is severely degraded. The threshold level used in the envelope detector increases with the increase of the frequency and timing offset, and with the proper selection of the threshold level, the BER can be improved under the presence of such offsets.

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