頻偏詢答機英文怎麼說

頻偏詢答機 的英文翻譯

頻偏詢答機 例句

1. This is not so for other grains such as amaranth and quinoa that have been produced more frequently by organic farmers
   但是對于其它穀物例如莧屬植物和昆諾阿藜（產于安第斯山脈地區，印第安人種植，食用其粟）卻並不如此，它們得到了更 頻 繁的有 機 種植。
2. The query module is a retrieval system on internet, it adopts b / s mode of three - layer structure, and has been implemented by using the inner component ado and the third party component fileup of asp technology and sql server 7. 0. this module can support the transmission of multi - media file. the discussion module is a electronic white board which is based on network, it has been implemented by java language and java media framework ( one of java media apis )
   本 答 疑係統由查 詢 和討論兩部分組成，查 詢 部分是一internet上的全文檢索系統，它採用三層結構的b / s模式，利用asp技術的內置組件ado 、第三方組件fileup和sqlserver7 . 0來實現，它能支持與問題相關的多媒體文件的上傳和下載，從而為查 詢 答 疑提供了與問題相關場景（即音視 頻 信息）的支持；討論部分則是一網上實時交互系統，該系統是以java語言和javamediaapis （ applicationprograminterfaces應用程序介面）提供的jmf （ java多媒體框架）編程實現的網路電子白板，通過它能在ip網路上實現文字、圖形、圖象、音 頻 視 頻 信息的實時交流，使網上 答 疑變得直觀生動和高效
3. 11a framing structure. secondly, we analyze the frequency estimation algorithm in ieee 802. lla standard
   Ofdm對載波 頻 偏 十分敏感，接收 機 的 頻 偏 估計能力是影響ofdm接收性能的重要因素。
4. This thesis adopts 8psk / qpsk modulation mode that ' s widely applied in short - wave communication to research all - digital blind receiver in burst mode based on software radio technology. then related solutions are given for the doppler frequency shift problem and multiple fading problem in short - wave channels. the arrangement of the thesis is below : chapter 1 gives brief description for the new technology and new systems of short - wave communication and for the development and appliance of software radio
   本文採用短波通信中應用廣泛的8psk qpsk調制方式，研究基於軟體無線電技術的突發模式全數字盲接收 機 ，並對多音并行及慢速傳輸中存在的多譜勒大 頻 偏 問題、單音串列、高速數傳時在短波通信鏈路中發生的干涉衰落問題做了研究，提出了相應的解決方案。
5. Take the hoc based blind modulation detection algorithm as an example, the relationship between the blind modulation detection algorithm and synchronization is investigated. an unproved detection algorithm robust to frequency offset is proposed which solves the problem caused by the error in carrier synchronization. how to synchronize a received signal with unknown modulation type is studied and a blind algorithm to estimate symbol timing of the signals with unknown modulation type is presented
   研究了載波同步和碼元定時同步與調制方式盲檢測演算法的關系；以自適應單載波中高階累積量調制方式盲檢測演算法為例，對于載波同步誤差引起的 頻 偏 問題，提出一種基於 頻 偏 穩健的mdpsk信號調制方式盲檢測演算法；對于未知調制方式信號的定時同步問題，提出一種盲定時估計演算法，該演算法可以估計mdpsk和mqam信號的定時同步信息，實現數字信號的同步分類；提出了一種基於調制方式盲檢測的自適應接收 機 結構，把調制方式盲檢測，信噪比估計和同步解調聯合起來進行，實現調制方式隨通道質量而自適應變化的信號的正確接收。

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