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Sub-array-class adaptive digital beam forming device with low side-lobe characteristics

An adaptive beam and digital beam technology, applied in antenna arrays, electrical components, circuits, etc., can solve problems such as poor side lobe performance, achieve good side lobe performance, suppress side lobes, and improve flexibility.

Inactive Publication Date: 2011-08-03
HARBIN INST OF TECH
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem of poor sidelobe performance of existing subarray-level adaptive digital beamformers, and to provide a subarray-level adaptive digital beamformer with low sidelobe characteristics

Method used

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  • Sub-array-class adaptive digital beam forming device with low side-lobe characteristics
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  • Sub-array-class adaptive digital beam forming device with low side-lobe characteristics

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specific Embodiment approach 1

[0017] Specific implementation mode one: the following combination Figure 1 to Figure 3 Describe this embodiment, the subarray-level adaptive digital beamformer with low sidelobe characteristics in this embodiment, which consists of sub-array-level optimal adaptive beamformer 1, sub-array-level adaptive beamformer with pattern control performance 2, an adder 3 and a beamformer 4, the subarray level optimal adaptive beamformer 1 is used to generate the subarray level optimal adaptive weight vector w opt , the subarray level adaptive beamformer 2 with pattern control performance is used to generate a subarray level adaptive weight vector w with pattern control performance pc , the adder 3 is used to weight the weight vector of sub-array level optimal adaptive beamformer 1 and the weight vector of sub-array level adaptive beamformer 2 with pattern control performance, to obtain the sub-array level Adaptive weight vector w adap ,

[0018] The subarray-level adaptive weight vec...

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Abstract

The invention discloses a sub-array-class adaptive digital beam forming device with low side-lobe characteristics, relating to a sub-array-class adaptive digital beam forming device. The purpose of the invention is to solve the problem that the side-lobe performance of the current sub-array-class adaptive digital beam forming device is poor. The forming device is composed of a sub-array-class optimal adaptive beam forming device, a sub-array-class adaptive beam forming device with a direction figure control performance, an adding device and a beam forming device, wherein the sub-array-class optimal adaptive beam forming device is used for generating a sub-array-class optimal adaptive weight vector wopt; the sub-array-class adaptive beam forming device with the direction figure control performance is used for generating a sub-array-class adaptive weight vector wpc with the direction figure control performance; the adding device carries out weighted summation for the adaptive weight vectors wopt and wpc of the two forming devices; and the beam forming device is used for carrying out adaptive interference suppression. The sub-array-class adaptive digital beam forming device is suitable for the field of sub-array-class adaptive digital beam forming.

Description

technical field [0001] The invention relates to a sub-array adaptive digital beamformer. Background technique [0002] An array antenna consists of multiple antennas arranged in a certain order. Phased array is a very important form of array antenna, which has important applications in communication, radio direction finding, smart antenna, seismic exploration and other fields. It controls the beam pointing of the pattern through a phase shifter, which has great advantages over traditional mechanical scanning methods. It does not need to mechanically rotate the antenna, greatly improves the beam scanning speed, and has the advantage of quickly finding targets; even in a multi-target environment, it can also quickly track targets by changing the phase shifter. The phased array uses the phase difference between the array elements to find the direction, and the narrow beam can be obtained by increasing the array aperture, thereby greatly improving the direction finding accurac...

Claims

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Application Information

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IPC IPC(8): H01Q3/30H01Q21/00
Inventor 胡航邱朝阳阎晓莉苏宏艳李绍滨邓新红
Owner HARBIN INST OF TECH
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