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Main lobe interference suppression method and device

A main lobe interference and optimal weight vector technology, applied in the field of communication, can solve problems such as side lobe level increase, offset, main beam deformation peak, etc.

Active Publication Date: 2013-06-26
ZTE CORP
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Problems solved by technology

[0004] The present invention provides a main lobe interference suppression method and device to at least solve the problem in the related art that the application of conventional adaptive beamforming technology to suppress main lobe interference will lead to increased side lobe level, main beam deformation and peak shift, resulting in The problem of output signal-to-noise ratio drop

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Embodiment Construction

[0023] It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0024] The present invention provides a method for suppressing main lobe interference, figure 1 Is a flowchart of a method for suppressing main lobe interference according to an embodiment of the present invention, such as figure 1 As shown, the following steps S102 to S104 are included.

[0025] Step S102: Calculate the optimal weight vector of the main lobe interference according to the constraint matrix, the loading level, the array receiving data matrix and the preprocessing blocking matrix.

[0026] Step S104, using the optimal weight vector of the main lobe interference to suppress the main lobe interference.

[0027] In related technologies, the application of conventional adaptive be...

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Abstract

The invention discloses a main lobe interference suppression method and device. The method includes calculating an optimal weight vector of main lobe interference according to a constraint matrix, a load electrical level, an array receive data matrix and a preprocessing block matrix; and using the optimal weight vector of main lobe interference to perform main lobe interference suppression. By means of the main lobe interference suppression method and device, main beams are enabled to point to an expected target direction, and simultaneously, main lobe interference is inhibited from forming deep null steering in other interference directions.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method and device for suppressing main lobe interference. Background technique [0002] With the development of mobile communications, smart antenna technology is also used in multi-antenna system mobile communications. Smart antennas use digital signal processing technology to generate spatially directional beams, so that the main beam of the antenna is aligned with the direction of the desired user signal, and the side lobes or nulls are aligned with the direction of the interference signal, so as to effectively receive the desired mobile user signal and suppress or eliminate unnecessary interference signals. . [0003] When there is main lobe interference, the application of conventional adaptive beamforming technology will cause the sidelobe level to increase, the main beam is deformed and the peak value shifts, and the output SNR decreases. When the main lobe interfere...

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Application Information

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IPC IPC(8): H04B7/04
Inventor 曾召华李斌史凡秦洪峰刘聪锋甘昶冯汝鹏
Owner ZTE CORP
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