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| 接收机前端放大链与数字模块接口匹配分析 | |
| 引用本文： | 张财生,丁家会,何友.接收机前端放大链与数字模块接口匹配分析[J].火力与指挥控制,2009,34(10). |
| 作者姓名： | 张财生 丁家会 何友 |
| 作者单位： | 1. 海军航空工程学院信息融合技术研究所,山东,烟台,264001;南京电子技术研究所,江苏,南京,210013 2. 南京电子技术研究所,江苏,南京,210013 3. 海军航空工程学院信息融合技术研究所,山东,烟台,264001 |
| 基金项目： | 国家自然科学基金，全国优秀博士学位论文作者基金，教育部新世纪优秀人才支持计划资金资助项目 |
| 摘 要： | 探讨了雷达数字化接收系统前端放大链与数字A/D模块级联后,接收系统的噪声系数、灵敏度和瞬时动态范围等参数的变化;研究了在工程上接收系统为获得最佳性能,前端放大链与数字A/D模块性能指标的折衷问题,推导了相应的设计公式并给出了实验验证.最后总结了在接收系统前端和A/D性能允许范围内,获得设计师希望得到的接收系统灵敏度和动态范围的方法及设计参考曲线. |
| 关 键 词： | 噪声系数 瞬时动态范围 匹配分析 |
Matching Analysis of Front-End Amplifier Chain & Digital A/D Module Interface |
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| ZHANG Cai-sheng,DING Jia-hui,HE You.Matching Analysis of Front-End Amplifier Chain & Digital A/D Module Interface[J].Fire Control & Command Control,2009,34(10). | |
| Authors: | ZHANG Cai-sheng DING Jia-hui HE You |
| Abstract: | The problem of matching between a receiving front-end amplifier chain and a digital A/D converter module is explored in details. Then the limit performances of a receiving system sensitivity and dynamic range are analyzed when the front-end amplifier chain and the digital A/D converter module are interconnected. An experimental test results is presented to demonstrate and compare with our deduction values in theory. Several compromising suggestions on choosing the right gain of an amplifier chain and a proper AD converter are given. Some aspects and referential curves on receiving system design are summarized which is used to obtain the required sensitivity and dynamic range within the available performances of the front-end and the digital A/D converter modules. |
| Keywords: | noise figure instant dynamic range matching analysis |
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