| 一种新的LFM中频信号产生电路校正算法 |
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| 引用本文： | 马振球,崔嵬.一种新的LFM中频信号产生电路校正算法[J].北京理工大学学报,2009,29(9):824-829. |
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| 作者姓名： | 马振球 崔嵬 |
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| 作者单位： | 北京理工大学,信息与电子学院,北京,100081 |
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| 基金项目： | 国家"八六三"计划项目 |
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| 摘 要： | 通过对宽带线性调频(LFM)中频信号产生电路的误差分析,从频域的角度建立了一种新的误差模型,将电路等效为由非理想基带信号产生器与理想正交调制器构成. 据此模型,设计了一种通过改变波形存储器数据实现系统校正的算法,并给出了算法的实现结构. 仿真结果验证了此算法的优越性以及实现框图的正确性.
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| 关 键 词： | 中频信号产生器 误差校正 线性调频信号 幅相误差 |
| 收稿时间： | 2008/11/27 0:00:00 |
A Novel Calibration Algorithm of LFM IF Signal Generator Circuit |
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| MA Zhen-qiu and CUI Wei.A Novel Calibration Algorithm of LFM IF Signal Generator Circuit[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(9):824-829. |
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| Authors: | MA Zhen-qiu and CUI Wei |
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| Institution: | MA Zhen-qiu,CUI Wei(School of Information , Electronics,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Based on the error analysis of linear frequency modulated(LFM) intermediate frequency(IF) signal generator circuit,a novel error model in frequency domain was established.The model divided the signal generator circuit into two parts,the non-ideal LFM baseband signal generator circuit and the ideal IF modulator.Then a new calibration algorithm is proposed.Through changing the ROM data,it achieved the purpose of circuit error correction.Furthermore,a structure to realize the calibration algorithm was designed... |
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| Keywords: | intermediate frequency(IF) signal generator error correct linear frequency modulated signal amplitude and phase error |
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