Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (2): 445-451.doi: 10.3969/j.issn.1001-506X.2020.02.25

Previous Articles     Next Articles

Fine feature recognition of frequency hopping radio based on high dimensional feature selection

Hongguang LI(), Ying GUO(), Ping SUI(), Zisen QI(), Linghua SU()   

  1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China
  • Received:2019-03-04 Online:2020-02-01 Published:2020-01-23
  • Supported by:
    国家自然科学基金(61601500);全军研究生资助课题(JY2018C169)

Abstract:

The high dimensional feature is used for individual identification of the fine features of the frequency hopping station. In order to enhance the classification and recognition ability of the frequency hopping station, it is usually necessary to increase the feature type and feature dimension of the feature set to improve the representation ability. However, many redundant features are introduced. As a result, the calculation time of the classifier is too long, and the classification correctness rate is lowered. In order to reduce the dimension of high-dimensional feature sets, the feature selection algorithm is firstly used to delete the irrelevant redundant features in the high-dimensional feature set to obtain the optimal feature set. Then, the parameter-optimized support vector machine (SVM) classifier is used for training and classification. Experiments show that the proposed algorithm can reduce the dimensionality of high-dimensional feature sets and improve the classification performance of SVM. On the basis of ensuring the correctness rate of classification, the computational complexity is reduced, and the timeliness of fine feature recognition of frequency hopping stations is improved.

Key words: frequency hopping radio, subtle features, feature selection, support vector machine (SVM)

CLC Number: 

[an error occurred while processing this directive]