| 大动态宽带数字中频接收机的优化设计 |
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| 引用本文： | 曹鹏,陈宁,齐伟,李伟强,王彦,费元春.大动态宽带数字中频接收机的优化设计[J].北京理工大学学报,2004,24(4):343-356. |
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| 作者姓名： | 曹鹏 陈宁 齐伟 李伟强 王彦 费元春 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 结合DIFR现有的工程实现技术,研究其优化设计技术.对3种典型的RFAF(射频模拟前端)电路做了对比分析和仿真,讨论了适用于大动态宽带DIFR的RFAF电路结构及性能特点,给出了一种新的数字RF AGC控制电路.以一个带宽为10 MHz,动态范围为-100～-10 dB,采样频率为80 MHz的DIFR设计为例,研究了RF模拟前端各部分的指标分配与整机性能指标设计,导出了RFAF的增益、噪声系数与DIFR的动态范围和RF AGC的增益控制代码之间的关系,并给出了仿真结果.
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| 关 键 词： | 宽带接收机 大动态 数字中频 优化设计 |
| 文章编号： | 1001-0645(2004)04-0353-04 |
| 收稿时间： | 4/7/2003 12:00:00 AM |
| 修稿时间： | 2003年4月7日 |
Optimization of a Large Dynamic Range and Broadband Digital Intermediate Frequency Receiver |
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| CAO Peng,CHEN Ning,QI Wei,LI Wei-qiang,WANG Yan and FEI Yuan-chun.Optimization of a Large Dynamic Range and Broadband Digital Intermediate Frequency Receiver[J].Journal of Beijing Institute of Technology(Natural Science Edition),2004,24(4):343-356. |
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| Authors: | CAO Peng CHEN Ning QI Wei LI Wei-qiang WANG Yan and FEI Yuan-chun |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A digital intermediate frequency receiver is optimized based on the state of art engineering implementation techniques, and three typical RFAF (radio frequency analog front-end) circuits are compared and simulated, and then the circuit architecture and features of RFAFs suitable for a large dynamic range and broadband digital receiver are discussed. A new type of digital RF AGC circuit is provided. A DIFR with (10 MHz) bandwidth, (-100~)(-10 dB) dynamic range and (80 MHz) sampling rate is optimized, the parameters allocation and optimization of the RFAF are studied, the relationship between the RFAF's gain, noise factor as against the dynamic range, and RF AGC code of the DIFR is deduced and simulated. |
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| Keywords: | broadband receivers large dynamic range digital intermediate frequency optimization |
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