A Classification and Detection Method for Clear and Ciphertext Signals Based on Blind Estimation of Wireless Signals

Abstract

The invention discloses a plaintext signal classification and detection method for blind estimation of wireless signals. In the case of known wireless plaintext and ciphertext states, the plaintext signal features and ciphertext signal features are respectively extracted, and the plaintext signal features are extracted. The ciphertext signal features are used as the training set, and the detected wireless signal phase statistical feature values ​​are used as the test set, which is input into the support vector machine for feature training and classification judgment. Compared with the prior art, the positive effect of the present invention is that the present invention proposes a novel wireless signal ciphertext security detection method aiming at the problem of wireless network electromagnetic signal security detection, which solves the problem of non-demodulation and non-decoding conditions. The blind recognition classification problem based on the statistical characteristics of wireless signal modulation phase. The invention has good detection and classification recognition performance for plaintext\ciphertext signals, high reliability, low cost, convenient use, and can efficiently meet the security analysis requirements of ciphertext signals in various wireless network communication environments.

Description

technical field [0001] The invention belongs to the technical field of wireless network electromagnetic signal security detection, and in particular relates to a method for classifying and detecting plain and ciphertext signals for blind estimation of wireless signals. Background technique [0002] With the development of information technology, the scale and complexity of wireless networks continue to increase, wireless networks have covered all aspects of people's work and life, and network security issues have become increasingly prominent, especially because of the openness, mobility and network Topology dynamic variability, etc., make wireless network security become a very concerned issue. [0003] In a wireless communication system, in order to ensure the security of various application information, an encryption algorithm is generally used to encrypt and protect message information. When there is an encryption requirement, a certain encryption algorithm is used to e...

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Problems solved by technology

[0007] Compared with the prior art, the positive effect of the present invention is that the present invention proposes a novel wireless signal ciphertext security detection method aiming at the problem of wireless network electromagnetic signal security detection, which solves the problem of non-demodulation and non-decoding conditions. The blind recognition classification problem based on the statistical characteristics of wireless signal modulation phase

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