【摘要】：針對α-β濾波器濾波增益隨采樣時(shí)刻的增加而減小的問題,提出了一種根據(jù)位置濾波平均誤差、速率濾波平均誤差以及速度濾波效果確定濾波增益下降截止時(shí)刻的方法,并分析了可能影響濾波增益下降截止時(shí)刻的因素。仿真結(jié)果表明:通過該方法確定的濾波增益下降截止時(shí)刻可以使α-β濾波器的濾波效果達(dá)到最佳;濾波增益下降截止時(shí)刻與目標(biāo)采樣間隔的相關(guān)性最強(qiáng),與過程噪聲的相關(guān)性次之,與量測噪聲的相關(guān)性最弱。
[Abstract]:In order to solve the problem that the filtering gain of 偽-尾 filter decreases with the increase of sampling time, a method is proposed to determine the cutoff time of filtering gain decline according to the average error of position filtering, the average error of rate filtering and the effect of velocity filtering, and the factors that may affect the cutoff time of filter gain decline are analyzed. The simulation results show that the filter gain drop cutoff time determined by this method can make the filtering effect of 偽-尾 filter reach the best, and the filter gain decline cutoff time has the strongest correlation with the target sampling interval, the second correlation with process noise, and the weakest correlation with measurement noise.
【作者單位】： 海軍航空工程學(xué)院電子信息工程系;
【分類號(hào)】：TN713
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本文編號(hào)：2524348