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数字接收机模拟信道和ADC的匹配设计 被引量:3

The Matching Design of Analog Down-conversion and ADC of Digital Receivers
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摘要 灵敏度和动态范围是数字接收机的2个重要性能。从这2项性能的定义出发,分别阐述了接收机设计中提高灵敏度和动态范围的措施,但二者相互矛盾。因此,结合灵敏度和动态范围的计算公式对数字接收机模拟信道和ADC的匹配设计进行了理论分析和计算,通过一具体接收机设计实例得出一组计算结果,并对计算结果进行了必要地说明。为接收机设计人员在接收机设计和指标分配时提供了一定的设计依据。 Upon the definition of sensitivity and SFDR, which are two important performances of digital receivers, the article introduces how to improve them. But there is illogicality between the two performances, so some theoretical analysis and calculation are made to make the analog frequency down-converters to match with the ADC. Finally, a series of results are obtained through an example of an actual digital receiver, and some necessary explanations are made. Through the article, the designers can obtain some useful reference in the design of digital
出处 《无线电工程》 2008年第6期58-60,共3页 Radio Engineering
关键词 数字接收机 ADC 灵敏度 动态范围 digital receiver ADC sensitivity SFDR
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参考文献3

  • 1Tsui James 杨小牛 译.宽带数字接收机[M].北京:电子工业出版社,2002..
  • 2斯蒂芬.接收系统设计[M].康士棣,姚冬萍,张弥临,译.北京:宇航出版社,1991.
  • 3戈稳编.雷达接收机技术[M].北京:电子工业出版社,2005.

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