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Lossy Compression Method for Frequency Domain Data

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

Active Publication Date: 2021-07-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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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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  • Lossy Compression Method for Frequency Domain Data
  • Lossy Compression Method for Frequency Domain Data
  • Lossy Compression Method for Frequency Domain Data

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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 lossy compression method for frequency domain data. Firstly, the radio frequency domain data is obtained and grouped, and the frequency domain data belonging to the same group are converted into a frequency domain data matrix, and then each level of the frequency domain data matrix is ​​sampled. Values ​​are converted, and then divided into sub-matrices of the same size, dimensionally transformed for each sub-matrix, and then quantized, the obtained quantization matrices are converted into one-dimensional vectors, spliced ​​​​to obtain a complete data encoding vector, and then combined with the frequency domain Data information to build a compressed result file. The present invention improves the compression ratio of the radio frequency domain data through a lossy compression method, which is beneficial to the more efficient and reasonable utilization of the radio frequency domain data.

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 Patents(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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