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Alternative TitleRe search on Nonlinear Effect s of Power Amplifier on Chirpand Methods for Precompensation
阎敬业; 姜景山; 张云华; 北京8701信箱
Source Publication电子学报
Keyword功率放大器 非线性失真 预补偿 脉冲压缩
Other AbstractThis paper focuses on nonlinear effects on both amplitude and phase of a Chirp signal ,and also on precompensation method for removing these effects.In a radar system ,working distance is mainly decided by transmitted power ,the more the power ,the longer distance the radar can detect. High power amplifier (HPA) often works at saturation point in order to get high output power ,but brings on nonlinear effect on output radar signal. The nonlinear effect degrades the performance of Chirp signal greatly.We analyze the main lobe width and first side lobe due to these effects. We propose two methods for pre-compensation based on DDS ,i. e. tablechecking method and iterative method. Theory and simulation results show thatthese two methods reduce these effects efficiently. Finally ,we analyze the factors that influence the performance of these two pre-compensation methods ,as well as the convergence issue for the iterative method ,and compare their results.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
阎敬业,姜景山,张云华,等. 功率放大器非线性对Chirp信号的影响及预补偿方法研究[J]. 电子学报,2005,33(12):2139-2143.
APA 阎敬业,姜景山,张云华,&北京8701信箱.(2005).功率放大器非线性对Chirp信号的影响及预补偿方法研究.电子学报,33(12),2139-2143.
MLA 阎敬业,et al."功率放大器非线性对Chirp信号的影响及预补偿方法研究".电子学报 33.12(2005):2139-2143.
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