frequency modulation index 中文意思是什麼

frequency modulation index 解釋
調頻指數
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  • modulation : n 調整,調節;(聲調的)抑揚,變化;【音樂】轉調,變調;【無線電】調制。 amplitude modulation 振...
  • index : n (pl es dices )1 索引。2 指標,標準,標志。3 示[食]指 (=index finger)。4 指數。5 【印刷】指...
  1. A comprehensive theory is presented for fm spectroscopy of doppler - broadened molecular iodine absorption lines. the relationship betwcen fm spectroscopy and modulation frequency and modulation index has been studied. the whole circuit for thc frcquency stabilized laser system has been developed

    建立了多普勒加寬碘分子線性吸收fm光譜的一般理論,對fm光譜與調制頻率和調制度的關系進行了研究;並研製了532nmnd : yvo _ 4 / ktp碘吸收穩頻激光器的電路系統;提出了虛擬激光穩頻技術的概念。
  2. Some modulation parameters, such as the carrier frequency and the symbol rate, can be estimated prior to the recognition of modulation types. such other parameters as the modulation index, the modulation frequency deviation, and the signal broadband can be further estimated after recognition

    部分調制參數如載波頻率、符號速率在識別之前獲得,在識別完成之後可以進一步估計調制指數、調制頻偏、信號帶寬等其餘參數。
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