| 抗干扰导航接收机射频前端线性度优化设计 |
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| 引用本文： | 汤先鹏,李柏渝,陈华明,欧钢.抗干扰导航接收机射频前端线性度优化设计[J].压电与声光,2017,39(4):577-581. |
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| 作者姓名： | 汤先鹏 李柏渝 陈华明 欧钢 |
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| 作者单位： | (国防科学技术大学 电子科学与工程学院，湖南 长沙 410073) |
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| 基金项目： | 青年科学基金资助项目（61403413） |
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| 摘 要： | 针对干扰条件下无自动增益控制(AGC)电路的卫星导航接收机射频前端的设计,在给定A/D采样芯片和混频器的条件下,根据抗干扰需求,提出了线性度指标的优化设计方法,得出了各级电路的增益、1dB压缩点、三阶交调截点和噪声系数的求解方法,以此指导器件选型。根据此优化设计方法,设计了某卫星导航系统的一种接收机射频前端,达到预期抗干扰效果,证明此方法有效可行。
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| 关 键 词： | 抗干扰 导航接收机 射频前端 线性度 优化设计 |
Linearity Optimization Design of RF Front end for Anti jamming GNSS Receivers |
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| TANG Xianpeng,LI Baiyu,CHEN Huaming,OU Gang.Linearity Optimization Design of RF Front end for Anti jamming GNSS Receivers[J].Piezoelectrics & Acoustooptics,2017,39(4):577-581. |
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| Authors: | TANG Xianpeng LI Baiyu CHEN Huaming OU Gang |
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| Affiliation: | (College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | For the design of the RF front end without AGC circuit of GNSS receivers with the existence of jamming,when the A/D sampling chip and mixer are fixed,an optimal design method of the linearity is proposed in this paper.And a method to compute the gain,power 1 dB compression point,third order intercept and noise figure of each class of circuits is proposed for the requirement of anti jamming,which can be guidance for components selection.Based on this optimal design method,a RF front end of a GNSS receiver is designed,which achieves the expected effect and demonstrates the effectiveness of the method. |
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| Keywords: | anti jamming GNSS receivers RF front ends linearity optimal design |
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