A fast lossless compression storage method for near-field data suitable for the method of moments
A lossless compression, near-field technology, applied in special data processing applications, design optimization/simulation, code conversion, etc., can solve problems such as large hard disk space, inappropriate storage length, and data format not suitable for mass data storage, etc. The effect of storage space
Active Publication Date: 2021-12-10
BEIHANG UNIV
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[0003] For near-field data, the antenna near-field data is generally obtained through the traditional method of moments, but these data take up a lot of hard disk space, have a lot of redundancy, and the data format is not suitable for mass data storage, nor is it suitable for Occasions that require very strict storage length
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[0076] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0077] Such as figure 1 As shown, a fast lossless compression storage method for near-field data suitable for the method of moments, including the following steps:
[0078] S1. Load CAD grid model:
[0079] Extract the point list and point connection list of the CAD bin mesh model from the target object mesh model file in nastran format, set the electromagnetic parameter information of the material and the model excitation source parameters, and complete the creation of the electromagnetic model;
[0080] In the embodiment of the present application, the target object includes an antenna, a circuit, or a complex combination of an antenna and a circuit.
[0081] S2. Convert the extracted CAD surface element mesh model, the set material ele...
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The invention disclosed a near -field data that is suitable for the quantity method to quickly and lossless compression storage method, including the following steps S1. Load the CAD grid model; S2.Grid vertex electric field and magnetic field; S4. Get the step S1 to get the point list and point connection list of the CAD facade grid modelNear -field data files; s5. Read the exported data file and exported grid data file into memory, and establish the mapping of the electric field and magnetic field data in each point of the CAD facade grid model and the magnetic field data in the near -field data file; S6. Compress the near -field data and grid data in the memory, and write a binary file; S7. With the help of the RAR compression tool, the data obtained by the step S6 is compressed to obtain the final compression storage file.The invention can effectively reduce the storage space of near -field data, and the data format can be suitable for the storage of massive data.
Description
technical field [0001] The invention relates to electromagnetic environment data storage, in particular to a fast and lossless compression storage method for near-field data suitable for the method of moments. Background technique [0002] The electromagnetic environment database plays a very important role in equipment testing, scene simulation, etc. The data in the electromagnetic environment database mainly includes the near-field data and far-field data of the antenna; [0003] For near-field data, the antenna near-field data is generally obtained through the traditional method of moments, but these data take up a lot of hard disk space, have a lot of redundancy, and the data format is not suitable for mass data storage, nor is it suitable for Occasions that require very strict storage length. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a fast and lossless compression storage meth...
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IPC IPC(8): G06F30/23H03M7/30
CPCG06F30/23H03M7/30
Inventor 李尧尧蔡少雄胡蓉曹成苏东林
Owner BEIHANG UNIV