IFF signal identification method and device based on radio frequency fingerprint, and medium
A radio frequency fingerprint and signal identification technology, applied in the field of signal identification, can solve problems such as failure to reach, achieve the effect of improving accuracy, solving performance degradation, and improving safety performance
Pending Publication Date: 2022-01-07
湖南艾科诺维科技有限公司
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Input to the subsequent deep learning network for classification and recognition, may not achieve the expected results
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[0041] The following description and specific embodiments in conjunction with the accompanying drawings of the preferred invention will be further described, without thereby restricting the scope of the present invention.
[0042] like figure 1 , The present invention provides a recognition method based on a radio frequency signal IFF fingerprint, comprising the steps of:
[0043] S1) acquiring IFF signal, the resulting I / Q baseband signals, I / Q baseband signal comprises in-phase component (I component) baseband signal and a quadrature component (Q component) of the IFF signal processing, the I / Q baseband signal is mapped plotted on the complex plane of the constellation, to calculate the density values of each constellation point in the constellation corresponding to obtain a constellation using the constellation points dot density values of different densities on the color-coded constellation, the constellation dot density as the radio frequency signals IFF fingerprint...
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The invention discloses an IFF signal identification method and device based on a radio frequency fingerprint and a medium, and the method comprises the steps: mapping an I / Q baseband signal obtained after processing an IFF signal to a complex plane to draw a constellation diagram, calculating the density value corresponding to each constellation point in the constellation diagram, marking the constellation points with different density values on the constellation diagram with different colors to obtain a constellation point density diagram as radio frequency fingerprint data; inputting the radio frequency fingerprint data of the IFF signal into a pre-configured deep learning network to identify radio frequency fingerprint features and obtain an identification classification result; and performing demodulation and decoding on the IFF signal to read contained information, and if the information or the identification and classification result is unknown equipment, stopping receiving the IFF signal and stopping sending information to a source of the IFF signal. According to the method, the radio frequency fingerprint data of the IFF signal can be effectively extracted, and the deep residual convolutional neural network is imported for effective identification and classification, so that camouflage intrusion can be effectively prevented.
Description
Technical field [0001] The present invention relates to the field of signal identification, and more particularly to an IFF signal identification method, apparatus and medium based on radio frequency fingerprint. Background technique [0002] IFF (Individual Identity System) is one of the important means of modern aeronautical wireless communication confirmation, which can make quick and convenient monitoring airline aerospace equipment and communicate with it under the premise of ensuring information security. The rapid development of modern aviation technology has a higher requirement for null domain utilization. If the IFF signal identifies an important source of status information to obtain other electronic aviation equipment. According to the analysis and recognition study of the received IFF signal, it can count the other party. The characteristics of the aircraft and travel and other important information. This information is important in the airspace monitoring, and it is...
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Login to View More IPC IPC(8): H04W12/79
CPCH04W12/79Y02D30/70
Inventor 张吉楠凌琪琪王萌
Owner 湖南艾科诺维科技有限公司