| 摘要 |
The receiving and processing system includes an aerial system (A) having three outer antennas (AC2..AC4) spaced around a circle at 120 degree intervals, and a central antenna (AC1) placed in the circle centre. Each antenna is connected to a receiver and to processing devices. Thus four paths are created for the receivers and the first processing devices to work in parallel. The second processing devices define an additional path, relative to a virtual phase centre defined as the symmetric of one of the triangle vertex relatively to the circle centre. This allows to obtain a covariance square matrix of order 5 and to calculate the missing part of the matrix using the additional relation given by the nullity of its determinant. Then a deviation measurement is carried on using a number of jammers equal to the number of phase centres of the present aerial system. In order to provide more information, three virtual phase centres (AF5, AF6, AF7) are created. The total information is then analysed in a fifth order covariance square matrix, to separate out the noise source jammer angles.
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