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Microwave staring correlated imaging random radiation array element spatial arrangement optimization method

A random radiation and associated imaging technology, which is applied in the direction of radio wave reflection/re-radiation, using re-radiation, radio wave measurement system, etc., can solve the problem that the randomness of the radiation source cannot be guaranteed

Active Publication Date: 2015-05-06
UNIV OF SCI & TECH OF CHINA
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  • Description
  • Claims
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Problems solved by technology

The traditional random radiation source arrangement mainly adopts uniform arrangement or random arrangement. This method has strong blindness and cannot guarantee that the randomness of the radiation source is optimal.

Method used

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  • Microwave staring correlated imaging random radiation array element spatial arrangement optimization method
  • Microwave staring correlated imaging random radiation array element spatial arrangement optimization method
  • Microwave staring correlated imaging random radiation array element spatial arrangement optimization method

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Embodiment

[0039] figure 1 It is a flowchart of a method for optimizing the spatial arrangement of random radiation array elements in microwave staring correlation imaging provided by an embodiment of the present invention. Such as figure 1 As shown, the method mainly includes the following steps:

[0040] Step 11. Obtain the front area of ​​the random radiation source, the aperture and minimum spacing of the array elements, and the number of array elements.

[0041] In the embodiment of the present invention, the radiation source front may be in a square, circular or irregular shape.

[0042] Step 12, using the genetic algorithm to optimize based on the maximization of the array element distribution entropy, and obtain the maximum array element distribution entropy arrangement.

[0043] Such as figure 2 As shown, the steps of using the genetic algorithm to optimize based on the maximization of array element distribution entropy mainly include:

[0044] 1) According to the obtained...

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Abstract

The invention discloses a microwave staring correlated imaging random radiation array element spatial arrangement optimization method. The method includes acquiring the random radiation array area and the minimum distances, diameters and numbers of the array elements; performing optimization by adopting the rule of array element arrangement entropy maximization by the genetic algorithm, and acquiring the maximum arrangement manner of the array element arrangement entropy. By the aid of the method, the randomness of the radiation field can be improved, and the high-resolution imaging is implemented.

Description

technical field [0001] The invention relates to the technical field of radiation source design, in particular to an optimization method for spatial arrangement of random radiation array elements in microwave staring correlation imaging. Background technique [0002] Microwave staring-associated imaging refers to the use of radar located on a stationary platform to image a fixed area, which can achieve continuous staring observation and imaging of a specific area. Traditional staring imaging, that is, real-aperture imaging, its angular resolution is limited by the aperture of the actual antenna array, which limits its practical application. [0003] The high-resolution microwave staring correlation imaging system based on the space-time two-dimensional random radiation field interacts with the target in the fixed staring area by constructing the space-time two-dimensional randomly changing radiation field, and performs information processing through the received scattered ech...

Claims

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Application Information

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IPC IPC(8): G01S13/89
CPCG01S13/89
Inventor 王东进孟青泉刘发林郭圆月田超刘波
Owner UNIV OF SCI & TECH OF CHINA
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