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Frequency domain data lossy compression method

A technology of frequency domain data and compression method, which is applied in the direction of digital transmission system, adjustment of transmission mode, electrical components, etc., can solve the problems of inability to consider the similarity of multi-frame data and low compression rate, achieve less data loss and improve compression ratio , Efficient and reasonable utilization effect

Active Publication Date: 2020-09-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] At present, the traditional lossless compression technology can achieve a compression rate of 60%-70% for radio frequency domain data, and there is a problem of low compression rate, which is mainly because the traditional lossy compression technology cannot consider the frequency domain data of the radio spectrum Due to the similarity of multi-frame data, it is necessary to propose a more adaptive compression method for the characteristics of radio frequency domain data

Method used

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  • Frequency domain data lossy compression method
  • Frequency domain data lossy compression method
  • Frequency domain data lossy compression method

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Embodiment

[0029] figure 1 It is a structural diagram of a specific embodiment of the frequency domain data lossy compression method of the present invention. Such as figure 1 As shown, the specific steps of the frequency domain data lossy compression method of the present invention include:

[0030] S101: Obtain a frequency domain data matrix:

[0031] Monitor the radio frequency spectrum. Each piece of frequency domain data includes monitoring start frequency, monitoring stop frequency, monitoring time, number of monitoring sampling points, and level sampling value of each monitoring sampling point. The monitoring start frequency, monitoring stop frequency, monitoring The frequency domain data with the same number of sampling points is divided into a group, and the frequency domain data matrix A is constructed, and its expression is as follows:

[0032]

[0033] Among them, a mn Indicates the level sampling value of the nth sampling point in the mth frequency domain data in the ...

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Abstract

The invention discloses a frequency domain data lossy compression method. The method comprises the steps of acquiring and grouping radio frequency domain data, converting the frequency domain data belonging to the same group into a frequency domain data matrix, converting each level sampling value of the frequency domain data matrix, dividing the matrix into sub-matrixes with the same size, performing dimension transformation on each sub-matrix, performing quantization processing, converting each obtained quantization matrix into a one-dimensional vector, conducting splicing to obtain a complete data coding vector, and constructing a compression result file in combination with frequency domain data information. Through a lossy compression mode, the compression ratio of the radio frequencydomain data is improved, and the radio frequency domain data can be utilized more efficiently and reasonably.

Description

technical field [0001] The invention belongs to the technical field of frequency domain data processing, and more specifically relates to a lossy compression method for frequency domain data. Background technique [0002] For radio spectrum monitoring, as the number of monitoring equipment increases, the frequency domain data generated by monitoring also increases continuously. The storage and transmission of these data seriously restrict the improvement of radio monitoring level. It is necessary to use data compression algorithm to reduce frequency Difficulty in storing and transferring domain data. [0003] At present, the traditional lossless compression technology can achieve a compression rate of 60%-70% for radio frequency domain data, and there is a problem of low compression rate, which is mainly because the traditional lossy compression technology cannot consider the frequency domain data of the radio spectrum Due to the similarity of multi-frame data, it is necess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0007H04L1/0083H04L1/0084
Inventor 金燕华雷啸廖达科石起斌江旭
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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