| 摘要 |
PURPOSE: An incidence angle estimation method is provided to set a plurality of different sized virtual antennas, to apply an incidence angle estimation algorithm to each virtual angle, to average space spectra resulted from the application, to make the size of a pseudo signal less than that of a real signal, and to estimate an inclination angle on a real sensor by separating two more incident signals from one another. CONSTITUTION: The method comprises several steps. Arranged sensors sense signals(401). The sensed signals are converted into digital signals via a signal receiver, and transmitted to a processor(402). Then the processor extends virtually existing arranged sensors for setting a plurality of virtually extended arranged sensors(403). Each space spectrum of each arranged sensor is calculated by applying a space spectrum estimation algorithm to the virtually extended arranged sensors(404). Then one average space spectrum is calculated by using the plural calculated space spectra(405). A value of a pointed head in the average space spectrum is determined as an incidence angle(406), and is externally expressed on an angle display(407).
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