hf time signal 中文意思是什麼

hf time signal 解釋
短波時號
  • hf : Hf ＝ 【化學】 hafnium.
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. Establishment of real - time vessel tracking system for all large vessels - using automatic identification system ( ais ) coupled with inmarsat - c / or hf capability on vessels ( or other technology as appropriate such as meteor burst signal technology ) - and continuous tracking of all such vessels by us coast guard

    利用跟蹤系統對所有大型船隻進行跟蹤，美國海岸警衛隊使用自動鑒別系統及其他相應的技術對所有的船隻進行跟蹤。
  2. Chapter 1 introduces the extensive application of hf / vhf communication and hf / vhf radios in military field, and points out the significance for promoting the research work of fh communication countermeasure using modern signal processing techniques, especially time - frequency analysis

    第一章介紹了短波通信和短波跳頻電臺在軍事領域中的廣泛應用，以及現代信號處理技術特別是時頻分析技術對促進跳頻通信對抗研究的重要意義。
  3. In this paper, the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of hf radar signal processing

    該文通過對高頻雷達信號處理過程的分析，闡明了電離層擾動對回波信號污染的機理。
  4. The technology of very low bit rate for hf ( high frequency ) communication means that, one technology of ecm ( electronic counter measures ) resistant communication is developed for low bit data message exchange in the time of battle which data communication is destroyed by electronic disturber. it is regarded by armies in the battle of information, because that it can overcome the very low snr ( signal noise ratio ), very high narrow - band interference and multipath with maxium delay of fifty millisecond

    短波最低限度通信技術是在戰時強電磁干擾情況下能實現保證最低限度的數據報通信的一種抗干擾通信技術。由於其能有效的克服極低信噪比、較強的窄帶干擾和幾十毫秒的多徑，在信息戰中受到各軍高度重視。
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