keyed system 中文意思是什麼

keyed system 解釋
鍵控系統
  • keyed : adj. 1. 帶鍵的〈如鍵盤樂器〉。2. 【建築】用拱頂石加固的。3. 定調的；調子…的〈常用以構成復合詞〉。4. 使調子和諧一致的。
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. In all cases the amenity codes should be keyed into the guest profile in the fidelio system

    任何級別的貴賓的特殊要求代碼都要輸入至電腦的客戶檔案中。
  2. Insects keyed into this system of chemical relationships between related plant species very early in their evolution.

    昆蟲在它們進化的過程中很早就已楔入在相近植物物種間的化學關系的系統之中。
  3. In this paper, bit - error rate performance analyses are presented for coded and un - coded frequency hopping m - ary frequency - shift keyed systems under the condition of additive white gaussian noise ( awgn ) and partial band noise jamming and multitone jamming. the use of error - correct codes provide a way to improve the performance of frequency hopping system, particularly the use of reed - solomon code in a fh system under the condition of partial band noise jamming can greatly improve the performance of system. so we provide the way of coding and decoding of rs code in c language. in the end, we offer the simulation of the performance of time diversity fh / 2fsk system over partial band jamming noise channels

    第一章為緒論，敘述跳頻通信的發展趨勢，以及基本概念，第二章及第三章介紹提高抗部分頻帶干擾的前向糾錯碼reed - solomon碼的原理和實現方法。第四章研究跳頻通信系統在各種干擾條件下的性能。最後在第五章以fh mfsk系統為例，探討在部分頻帶干擾下的系統性能，並進行計算機模擬，模擬結果表明採用分集技術和各種編碼技術對于系統的性能改善具有明顯的效果。
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