Satellite anti-parametric scanning communication method based on ML-WFRFT and AN assistance

A technology of ML-WFRFT and communication method, applied in the field of satellite communication, can solve the problems of shortage of spectrum resources, increased risk of information eavesdropping, limited transmission power, etc., to ensure secure communication, enhance anti-parameter scanning, spectrum The effect of increased utilization

Inactive Publication Date: 2019-01-04
达新宇
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Problems solved by technology

[0003] In summary, the problems in the prior art are: At present, spectrum resources are becoming more and more scarce, and the transmission power is limited. Any user within the satellite coverage area can receive data, and the risk of eavesdropping on the transmitted information increases.

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  • Satellite anti-parametric scanning communication method based on ML-WFRFT and AN assistance
  • Satellite anti-parametric scanning communication method based on ML-WFRFT and AN assistance
  • Satellite anti-parametric scanning communication method based on ML-WFRFT and AN assistance

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043]The present invention proposes a satellite anti-parameter scanning communication method assisted by multi-layer weighted fractional Fourier transform (ML-WFRFT) and artificial noise (AN), which solves the problem of low frequency spectrum utilization and easy transmission of information in traditional satellite communication systems. Issues such as being intercepted; satellite communication can achieve secure communication without other additional equipment.

[0044] Such as figure 1 As shown, the ML-WFRFT and AN-assisted satellite anti-parameter scanning communication method provided by the embodiment of the presen...

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Abstract

The invention, which belongs to the field of satellite communication technology, discloses a satellite anti-parametric scanning communication method based on multilayer weighted fractional fourier transform (ML-WFRFT) and artificial noise (AN) assistance. According to the method disclosed by the invention, an ML-WFRFT modulation signal is employed and the ML-WFRFT is combined with the AN assistance technology. On the basis of modification of the traditional WFRFT, the ML-WFRFT is put forward to modulate signals; and the ML-WFRFT is combined with the multiple input multiple output (MIMO) technology, so that the modulated signal has multiple modulation parameters and high encryption; and parameter scanning is carried out by suppressing the eavesdropping side and the ML-WFRFT is combined withthe AN assistance technology. Therefore, the receiving performance of the AN assistance technology is suppressed greatly while the communication requirement of the legal receiving side is met; and thus the signal can not be demodulated correctly basically.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, in particular to a satellite anti-parameter scanning communication method based on ML-WFRFT and AN assistance. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: Satellite communication has the characteristics of large communication coverage area, long communication distance, communication frequency bandwidth, large communication capacity, good channel quality, and stable transmission performance. Therefore, satellite communication has been widely used in civil and military communications. However, with the development of social economy, the demand for high-speed and high-quality data transmission is more urgent. With the development of science and technology, there are more and more services such as radio and television, satellite communications, transportation, railways, and walkie-talkies, and spectrum resources are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04K3/00H04K1/00H04L27/26H04L1/06
CPCH04K1/003H04K3/82H04K3/827H04L1/0625H04L27/2695
Inventor 达新宇翟东胡航梁源徐瑞阳倪磊王浩波潘钰
Owner 达新宇
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