Radar-assisted height estimation method under multipath effect

The invention relates to the field of radar signal processing, in particular to a radar-assisted height estimation method under a multipath effect. The method comprises the following five main steps of: 1, calculating wave path differences between multipath echoes and direct waves of different heigh...

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Bibliographische Detailangaben
Hauptverfasser: GUI YUYANG, YANG XU, SUN YUXI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the field of radar signal processing, in particular to a radar-assisted height estimation method under a multipath effect. The method comprises the following five main steps of: 1, calculating wave path differences between multipath echoes and direct waves of different heights of each row line source; 2, calculating the theoretical echo amplitude of each row line source; 3, calculating the actual echo amplitude at the target distance unit of each row line source; 4, calculating the correlation between the theoretical echo amplitude and the actual echo amplitude and normalizing the correlation; and step 5, determining an accurate height measurement result of the target by combining a normalized correlation result and a traditional specific height measurement result. According to the invention, the target height measurement result under the multipath effect is more accurate. 本发明涉及雷达信号处理领域,特别是涉及一种多径效应下的雷达辅助估高方法。本发明包括5个主要步骤,步骤1:计算出每个行线源不同高度的多径回波与直达波的波程差;步骤2:计算各个行线源的理论回波幅度;步骤3:计算各个行线源的目标距离