| 1. | A d and d a conversion
數模與模數轉換
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| 2. | In the development process , pcl - 818l card is adopted by the system as the interfaces of a / d and d / a
在系統的開發過程中，采用的是p卜818l數據采集卡作為d 、八接。
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| 3. | The influence of the parameters such as d and d ( illm thickness ) on laser induced voltage had been discussed
根據該公式，對影響激光感生電壓的一些參量如、 d 、薄膜的厚度d等進行了討論。
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| 4. | So digitalizing analog signal is the trend of information technology , in which a / d and d / a plays an important role
所以模擬信號數字化是信息技術的發展趨勢，而a d和d a轉換器在其中扮演著重要角色。
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| 5. | Then , the article introduces the circuits of the a / d and d / a , and the conversion method of the a / d and d / a
文章還就實現a d 、 d a轉換的具體電路和利用該數據采集卡實現a d 、 d a轉換的具體手段進行了闡述。
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| 6. | The software radio consists of several parts as follow : analog front end , broadband a / d and d / a , digital upper / down converter , high - speed signal processor and so on
它由以下幾個部分組成:模擬前端,寬帶a / d和d / a ,數字上/下變頻器,高速數字信號處理器等。
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| 7. | The main point of the conception about software radio is as follows : first , making the a / d and d / a close to the antenna ; secondly , accomplishing as much as function by software
軟件無線電的關鍵思想在于兩點:一是將a / d , d / a盡量靠近天線,二是用軟件實現盡可能多的無線電功能。
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| 8. | The package of software contains the pid algorithm realizing for the dsp control system , the program for system initialization as well as the program for a / d and d / a transforming
對控制系統進行了軟件設計。軟件包括控制系統pid算法的dsp實現、系統初始化以及a d 、 d a轉換程序。
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| 9. | After the methods of a / d and d / a were expressed according to the hardware and needs of the system , the article explains the language environment and the program structure
在結合具體硬件環境和系統需求明確了系統的a d 、 d a等環節的實現手段以后，文章對系統控制程序所采用的具體的語言環境和程序結構進行了說明。
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| 10. | The basis idea of software radio ( srd ) is to place the a / d and d / a close up the antenna as possible as and use software to realize all the function of any radio based on an opening and blocking currency hardware platform
軟件無線電的基本思想是將寬帶a / d及d / a盡可能靠近天線,將無線電臺的各種功能在一個開放性、模塊化的通用硬件平臺上盡可能多的用軟件來實現。
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