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Angle measurement method capable of broadening narrow beam of guidance radar

A narrow beam, angle measurement technology, used in radio wave measurement systems, instruments, etc., can solve problems such as saturation, poor signal, and low angle measurement accuracy, and achieve the effect of reducing accuracy requirements

Active Publication Date: 2019-12-20
CNGC INST NO 206 OF CHINA ARMS IND GRP
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  • Application Information

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Problems solved by technology

However, when the narrow beam of the radar is broadened, there will be a series of problems such as low angle measurement accuracy and saturation of the differential signal in the narrow beam broadened area.

Method used

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  • Angle measurement method capable of broadening narrow beam of guidance radar
  • Angle measurement method capable of broadening narrow beam of guidance radar
  • Angle measurement method capable of broadening narrow beam of guidance radar

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Experimental program
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Embodiment Construction

[0023] The present invention mainly comprises following 3 parts:

[0024] 1) Guidance radar narrow beam broadening. According to the guidance radar narrow beam pattern and actual test performance, widen the narrow beam, reduce the accuracy requirements of the guidance radar wide beam, and ensure that the guidance handover between the wide beam and the narrow beam is within a suitable angle range;

[0025] 2) Design improvement of communication protocol in the system. After the narrow beam is widened, the angle output error value increases, and the effective bits of the output error of the signal processing subsystem should increase. At the same time, the improvement of the communication protocol design with the central control computer is completed;

[0026] 3) The sum signal and the difference signal are used as the input signal to perform automatic gain control, so that the angle measurement error value is output smoothly in the extended area.

[0027] The specific impleme...

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Abstract

The invention relates to an angle measurement method capable of broadening the narrow beam of guidance radar. On the basis of ensuring the detection and control of a sum path signal, the functions ofdetecting and controlling an orientation difference path signal and a pitching difference path signal are added, because of beam broadening, an output angle measurement error signal becomes larger, and an original communication protocol with a central control computer and a display control terminal cannot be met, so that 2 bits are added in the data transmission of a signal processing and centralcontrol computer, the central control computer and the display control terminal, and data bits are added in the data transmission process of sending an angle measurement error value to a missile launching vehicle through the central control computer. The angle measurement method solves the angle measurement problem of narrow beam broadening, the requirement on wide beam precision is reduced, and the connection of wide and narrow beams is realized.

Description

technical field [0001] The invention belongs to the technical field of radar system design, in particular to an angle measurement method for guiding radar narrow beam broadening. By adopting the method of widening the narrow beam to measure the angle of the guidance radar, the guidance handover between the wide beam and the narrow beam is solved within a suitable angle range, the accuracy requirements for the wide beam are reduced, and the smooth handover of the wide and narrow beam is realized. Background technique [0002] Among the angle measurement methods of guided radar, the single pulse angle measurement method is widely used in radar systems due to its advantages of high angle measurement accuracy and strong anti-interference ability. The monopulse goniometric method belongs to the simultaneous lobe goniometric method. In an angular plane, two identical partially overlapping beams are generated at the same time, and the overlapping direction is the equal signal axis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 韩星宋伟强高剑张博君刘冰陈春鲁金
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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