【摘要】：微多普勒特征的準(zhǔn)確提取對(duì)于雷達(dá)目標(biāo)識(shí)別具有重要意義.提出了調(diào)頻閃爍噪聲產(chǎn)生方法;給出了頻率源相位噪聲綜合的參數(shù)化模型.在此基礎(chǔ)上,結(jié)合相位噪聲對(duì)微多普勒特征提取的影響分析,建立了以載頻信號(hào)相位噪聲為主要干擾源的全相參脈沖雷達(dá)微多普勒特征提取仿真系統(tǒng).引入逆拉東(Radon)變換,定量分析了相位噪聲對(duì)雷達(dá)目標(biāo)微多普勒特征提取的影響,得出現(xiàn)有的晶振技術(shù)指標(biāo)可支撐中段彈頭目標(biāo)微多普勒特征提取的明確結(jié)論.
[Abstract]:The accurate extraction of micro-Doppler features is very important for radar target recognition. A method for generating frequency modulation scintillation noise and a parameterized model for synthesizing phase noise of frequency source are presented. Based on the analysis of the effect of phase noise on micro-Doppler feature extraction, a simulation system for micro-Doppler feature extraction of coherent pulse radar with carrier frequency signal phase noise as the main interference source is established. The effect of phase noise on micro-Doppler feature extraction of radar target is quantitatively analyzed by introducing inverse Radon (Radon) transform, and a clear conclusion is drawn that the existing crystal oscillation technical indexes can support the micro-Doppler feature extraction of midcourse warhead target.
【作者單位】： 中國電子科學(xué)研究院;
【基金】：上海航天科技創(chuàng)新基金(No.SAST201240) 國家自然科學(xué)基金(No.61271373)
【分類號(hào)】：TN957.51
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本文編號(hào)：2395844