An interference detection device and method based on deep support vector data description

Abstract

The invention discloses an interference detection device and method based on deep support vector data description. The device includes data preprocessing, deep learning training module, interference detection and interference identification module; the method includes the following steps: collecting space signals through antennas and performing IQ Modulation, through frequency mixing, digital filtering, down-sampling and FFT, convert the one-dimensional data format of the signal into a four-dimensional matrix data format; construct, optimize and train the deep learning network architecture to obtain the optimal parameters of the network; call the corresponding algorithm according to the requirements, Realize online interference detection and modulation recognition on the CPU-based operating system; finally output the results on the pyQT-based display and control interface. By combining the advantages of deep support vector description and modulation recognition, the present invention solves the problems of unknown interference patterns and difficult signal feature extraction in complex environments, realizes open-set recognition with high detection rate and low false alarm rate, and ensures Under the interference detection and identification effect.

Description

technical field [0001] The invention belongs to the technical field of signal perception in communication systems, and more particularly, relates to an interference detection device and method based on deep support vector data description. Background technique [0002] In space-constrained combat platforms such as combat vehicles, aircraft, and warships, a large number of radar-communicating electronic warfare devices with different functions are deployed, and the space is crowded. The communication receiver located on the combat platform not only receives useful communication signals from friendly parties, but also receives electromagnetic signals leaked from other electronic devices on the platform, as well as electromagnetic interference signals from enemy platforms. The electromagnetic environment is complex. Interference detection and identification are the premise of communication anti-jamming and the basis of interference cognition. Studying the interference detection...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of poor detection performance and real-time performance under complex channels existing in existing interference detection and identification methods, the present invention provides an interference detection device and method based on deep support vector data description, which converts radio frequency signals to For the baseband signal, construct the training data set through signal preprocessing and introduce channel noise, design and optimize the deep support vector description network and deep convolutional neural network architecture, iteratively optimize the network weights, and complete the communication system interference detection and identification

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