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Direction finding method of correlative interferometer based on dimension division

A related interferometer and direction finding technology, applied in directions such as direction finders using radio waves, radio wave director components, etc., can solve the problem of large computational complexity of two-dimensional direction finding algorithms, and achieve reduced search computation and high efficiency. The effect of the 2D direction finding method

Inactive Publication Date: 2011-09-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0006] In view of the technical problem in the prior art that the two-dimensional direction-finding algorithm has a large amount of calculation when searching for the azimuth and elevation angles at the same time, it is necessary to provide a correlation interferometer direction-finding method based on dimension splitting

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  • Direction finding method of correlative interferometer based on dimension division
  • Direction finding method of correlative interferometer based on dimension division
  • Direction finding method of correlative interferometer based on dimension division

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0035] A method for two-dimensional direction finding of a correlation interferometer based on dimension splitting, through the invention, the calculation amount of the direction finding process can be reduced while ensuring the accuracy of the two-dimensional direction finding of the correlation interferometer, and the direction finding speed of a broadband direction finding system can be improved . The present invention mainly divides the two-dimensional search of angle measurement into two one-dimensional searches of azimuth angle and pitch angle, and uses the obtained rough angle measurement value to reduce the size of the sample library used for similarity calculation, and combines the interpolation method Obtain final azimuth and elevation measurements.

[0036] For the convenience of description, the following definitions are firs...

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Abstract

The invention belongs to the technical field of communication radars, and particularly relates to a direction finding method of a correlative interferometer based on dimension division. The method mainly comprises the following steps: dividing the two-dimensional searching of a measured angle into the one-dimensional searching of an azimuth angle and an elevation angle; calculating the size of a sample database for similarity operation according to the reduction of an obtained angle rough measurement value; and calculating the azimuth angle measurement value and the elevation angle measurement value by an interpolation method. Compared with the correlative interferometer algorithm of the prior art, the correlative interferometer algorithm based on dimension division of the two-dimensional direction finding method has reduced operation amount and improved operation efficiency while ensuring the similar direction finding accuracy.

Description

technical field [0001] The invention belongs to the technical field of communication radar, and in particular relates to a direction finding method of a correlation interferometer based on dimension splitting. Background technique [0002] In the existing direction finding system, phase interferometer direction finding has the advantages of high direction finding accuracy, simple algorithm, fast speed, etc., so it has been widely used in military and civilian fields. In the military field, it can locate radiation sources such as radar, communication, and measurement and control, and can play an important role in the implementation of targeted electronic interference and military strikes; in the civilian field, it can be used for traffic control, life rescue, and radio frequency spectrum management etc. [0003] A simple and classic solution for phase interferometer direction finding is the multi-baseline phase interferometer. It uses a short baseline to roughly estimate th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S3/12
Inventor 程婷贾可新何子述蒋林鸿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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