Direction-finding method for determining the incident direction of a high-frequency electromagnetic signal
AssigneeDaimler-Benz Aerospace AG
InventorsFranz Herrmann, Manfred Schuster
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AssigneeDaimler-Benz Aerospace AG
InventorsFranz Herrmann, Manfred Schuster
Estimating the term…
A direction-finding method for determining an incident angle of a high-frequency electromagnetic signal in a system including at least two receiving antennas spaced apart by a known distance. the antenna output signals of the at least two receiving antennas are converted, together (in accordance with a multiplexing procedure) or individually, into the frequency domain through a Fourier transformation, followed by a conversion into an IF range and an A/D conversion. In this range, the phase difference between the output signals is determined and the signal frequency of the incident wave is determined through a phase-sequence analysis. The incident angle of the incident wave is determined from the phase difference and the signal frequency.
A direction-finding method for determining an incident direction of a high-frequency electromagnetic signal with respect to a predeterminable primary direction of an antenna arrangement including at least two receiving antennas spaced apart by a known distance (D) for receiving the incident signal, the method including steps of:
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