carrier acquisition time 中文意思是什麼
carrier acquisition time
解釋
載波捕獲時間- carrier : n 1 運送人，搬夫；負荷者；使役，〈美國〉信差，郵遞員；送報人；〈英國〉運輸行，運輸業者。2 傳書鴿...
- acquisition : n. 1. 取得，獲得；習得。2. 取得物，獲得物[人]。3. 【無線電】探測。
- 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 ...
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The performance targets of acquisition and tracking : the code rate of pseudorandom signals is 1m - 5mhz, the code length is 255. 511, the receiving sensitivity is - 118dbm, the dynamic range is 70db. the doppler of carrier is 75khz, the time that 10 targets are captured within 0. 2s
捕獲和跟蹤的性能指標：偽隨機信號碼率1m 5m比特/秒，碼長是255 、 511 ，接收靈敏度是- 118db ，信號動態范圍是70db載波普勒是75khz ，目標捕獲在0 . 2秒內。 -
In this thesis, a kind of 2 - dimention signal acquisition method is presented which combines parallel pn code phase and carrier frequency acquisition, as a result the acquisition time is shortened greatly. besides, according to the fact that the detection of spread spectrum signals is always the key point in the receiving system
在擴頻信號的捕獲過程中要求有較小的時延和較高的概率，本文介紹一種二維信號的捕獲方法，這種方法結合偽pn碼和載波頻率的獲取，捕獲時延將大幅度降低，實際上，擴頻信號的檢測是接收系統的關鍵。
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