FIELD: radio engineering and communications.
SUBSTANCE: invention relates to radio engineering and is intended to receive a navigation signal against intentional interference, and can be used in the navigation equipment of the consumer (NAC) of the global navigation satellite system (GNSS). In the interference compensator for the navigation equipment of the consumer of the global navigation satellite system, receiving elements 1.1, 1.2, … 1.K of antenna array 1 receives navigation signals and interference and transmit them to blocks of weight coefficients 2.1, 2.2, …, 2.K of diagram-forming circuit 2 and in direction finder 4, which determines the directions of the arrival of navigation signals and interference and transmits them to the block for setting the value of the directional pattern in the directions to the sources of the signals of the NAC and interference 5, which sets the values of the directivity pattern (DP) in the direction of arrival of signals equal to K, and in the other directions zeros, passes these values to the block for calculating weight coefficients 6, which calculates the vector of the weight coefficients and transfers the values of the vector to the corresponding blocks of weight coefficients 2.1, 2.2, …, 2.K of beam-forming arrangement 2, which form the weighted signals and transmit them to adder 3, where they accumulate and transmit the resulting signal to the NAC and interference analyzer 7, which performs a primary and secondary analysis that detects whether the incoming signal belongs to a navigation signal or interference, generates information about the directions of navigation signals, transmitting it to the block of setting the values of the directional pattern in the directions to the sources of signals of NAC and interference 5 to set the values of DP in the directions of navigation signals equal to K, and in the direction of arrival of interference – equal to zero, skips the navigation signals to the GNSS NAC.
EFFECT: improved reception of the navigation signal against the background of deliberate interference.
1 cl, 3 dwg
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Authors
Dates
2018-07-05—Published
2017-06-23—Filed