| 摘要 |
<p>The present invention relates to a device and a method for estimating a direction of arrival (DOA) in a multi-jammer environment. The method includes the steps of: generating and combining a jamming signal, a GPS signal, and a noise signal from a reception signal of an array antenna; performing primary DOA estimation by deriving a root from the generated and combined signals and array antenna information; performing secondary DOA estimation by determining a reduced search range and resolution in the search range based on results of the primary DOA estimation; and calculating and outputting a root mean square error (RMSE) and a resolution probability from results of the secondary DOA estimation. According to the present invention, the device and the method can be easily applied to a case of realizing hardware requiring limitation to an operation or a case that all of excellent DOS estimation, a fast operation speed, and a high resolution probability are required to be met. Also, the method of the present invention, which is to use and mix an existing algorithm, can be easily applied to improve performance of a system requiring an existing DOA estimation process.</p> |
