遙測編碼調制 的英文怎麼說
中文拼音 [yáocèbiānmǎdiàozhì]
遙測編碼調制
英文
tcm telemetry code modulation- 遙 : 形容詞(遙遠) distant; remote; far
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 編 : Ⅰ動詞1 (編織) weave; plait; braid 2 (組織; 排列) make a list; arrange in a list; organize; gr...
- 碼 : Ⅰ名詞(表示數目的符號或用具) a sign or object indicating number; code Ⅱ量詞1 (指一件事或一類的...
- 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 遙測 : telemetry; telemetering; remote measurement; remote metering; remote sensing; tele measurement
- 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
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The pulse code modulation / frequency modulation ( pcm / fm ) is widely used in most reentry remote sensing ( rrs ) system at the present time in our country
目前我國再入遙測系統主要採用脈沖編碼調制/調頻( pcm / fm )體制。One important feature of radio signals ’ is that the signals are easy to catch and to disturb. in order to disturb the radio signals, parameters, including code rate, modulation, protocol, protection methods and channel coding, about satellite ’ s signals should be known. so, it is possible to receive the data from satellites and obtain lots of information from it, and even to destroy the undesired information
衛星通信系統的遙控遙測信息都是通過無線通道傳遞,而無線電信號的一個很重要的特性就是發射易被接收、易被干擾,實現干擾的前提是對衛星信號參數的極大了解,這包括明確信號的碼速率、調制方式、所用協議、保密措施及通道編碼等,因此,通過接收衛星數據以獲取大量的未知信息,甚至破壞掉對己的不利信息就成為可能。
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