| 1. | A d and d a conversion
数模与模数转换
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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
在系统的开发过程中，采用的是p卜818l数据采集卡作为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
根据该公式，对影响激光感生电压的一些参量如、 d 、薄膜的厚度d等进行了讨论。
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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
所以模拟信号数字化是信息技术的发展趋势，而a d和d a转换器在其中扮演着重要角色。
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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
文章还就实现a d 、 d a转换的具体电路和利用该数据采集卡实现a d 、 d a转换的具体手段进行了阐述。
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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
它由以下几个部分组成:模拟前端,宽带a / d和d / a ,数字上/下变频器,高速数字信号处理器等。
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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
软件无线电的关键思想在于两点:一是将a / d , d / a尽量靠近天线,二是用软件实现尽可能多的无线电功能。
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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
对控制系统进行了软件设计。软件包括控制系统pid算法的dsp实现、系统初始化以及a d 、 d a转换程序。
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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
在结合具体硬件环境和系统需求明确了系统的a d 、 d a等环节的实现手段以后，文章对系统控制程序所采用的具体的语言环境和程序结构进行了说明。
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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
软件无线电的基本思想是将宽带a / d及d / a尽可能靠近天线,将无线电台的各种功能在一个开放性、模块化的通用硬件平台上尽可能多的用软件来实现。
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