民航甚高頻通信比選配置方案研究
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摘要:在民航甚高頻通信應(yīng)用場景中,一個管制扇區(qū)通常配置多個同頻的甚高頻收發(fā)臺站來完善扇區(qū)覆蓋。合理利用外置比選器的信號信噪比比選功能,可以在管制員與機組通信時自動完成最優(yōu)收發(fā)臺站的選擇,保證管制通話質(zhì)量及管制工作連續(xù)性。
關(guān)鍵詞:甚高頻通信;信號比選;信噪比比選器
doi:10.3969/J.ISSN.1672-7274.2022.09.007
中圖分類號:V 243.1 文獻標示碼:B 文章編碼:1672-7274(2022)09-00-04
Best-Signal-Selection in Civil Aviation VHF Communication
HE Yang
(Civil aviation Wenzhou air traffic management station, Wenzhou 325024, China)
Abstract: In the civil aviation VHF communication application scenario, a control sector is usually configured with multiple VHF transceiver stations with the same frequency to improve the sector coverage. Reasonable use of the best signal selection function of the external comparator can automatically complete the selection of the optimal transceiver station when the controller communicates with the crew, so as to ensure the quality of control calls and the continuity of control work.
Key words: VHF; best-signal-selection; signal-to-noise voter
0 引言
民用甚高頻地空通信系統(tǒng)采用甚高頻頻段調(diào)制語音信號,甚高頻頻段的無線電波在傳播時具有視距傳輸特性,它的傳輸距離有限并且容易受到山體遮擋。(剩余4210字)