Abstract
Effective clustering of radar emitters can enhance the perception capability of electronic warfare units in the electromagnetic environment. For the problem of radar emitter clustering with an unknown number of classes, this work proposes a method based on threshold segmentation and information fusion for inferring the number of clusters. Firstly, the radar emitter data is preprocessed to obtain the time-frequency information and spectrum information. Then, the threshold segmentation-based key time-frequency information processing algorithm is applied to process the time-frequency information. Next, the obtained key time-frequency information is fused with the spectrum information. Finally, principal component analysis and weighted consensus clustering are used to infer the number of clusters for radar emitters. The proposed method can accurately infer the number of clusters when the signal-to-noise ratio is not less than −4 dB. Experimental results demonstrate that the proposed key time-frequency information processing algorithm and information fusion algorithm can effectively improve the performance of the proposed method, and the performance of the proposed method is superior to traditional methods.
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References
Mousavi, S.M., Zhu, W., Ellsworth, W., Beroza, G.: Unsupervised clustering of seismic signals using deep convolutional autoencoders. IEEE Geosci. Remote Sens. Lett. 16(11), 1693–1697 (2019)
Wu, Z., Cao, W., Bi, D., Pan, J.: CLIPC: contrastive learning-based radar signal intra-pulse clustering. IEEE Internet Things J. (2023)
Wu, Z.L., Huang, X.X., Du, M., Xu, X.S., Bi, D., Pan, J.F.: Intra-pulse recognition of radar signals via bicubic interpolation WVD. IEEE Trans. Aerosp. Electron. Syst. (2023)
Clancy, T.C., Khawar, A., Newman, T.R.: Robust signal classification using unsupervised learning. IEEE Trans. Wirel. Commun. 10(4), 1289–1299 (2011)
Scherreik, M., Rigling, B.: Online estimation of radar emitter cardinality via Bayesian nonparametric clustering. IEEE Trans. Aerosp. Electron. Syst. 57(6), 3791–3800 (2021)
Lang, P., Fu, X., Cui, Z., Feng, C., Chang, J.: Subspace decomposition based adaptive density peak clustering for radar signals sorting. IEEE Sig. Process. Lett. 29, 424–428 (2021)
Gasperini, S., Paschali, M., Hopke, C., Wittmann, D., Navab, N.: Signal clustering with class-independent segmentation. In: 2020 IEEE International Conference on Acoustics, Speech and Signal Processing, pp. 3982–3986. IEEE, Virtual Conference (2020)
Cheng, Y.: Mean shift, mode seeking, and clustering. IEEE Trans. Pattern Anal. Mach. Intell. 17(8), 790–799 (1995)
Ester, M., Kriegel, H.P., Sander, J., Xu, X.: A density-based algorithm for discovering clusters in large spatial databases with noise. In: Proceedings of the Second International Conference on Knowledge Discovery and Data Mining, pp. 226–231. AAAI Press, Portland, Oregon (1996)
Zhang, T., Ramakrishnan, R., Livny, M.: BIRCH: an efficient data clustering method for very large databases. ACM SIGMOD Rec. 25(2), 103–114 (1996)
Ankerst, M., Breunig, M.M., Kriegel, H.P., Sander, J.: OPTICS: ordering points to identify the clustering structure. ACM SIGMOD Rec. 28(2), 49–60 (1999)
Frey, B. J., Dueck, D.: Clustering by passing messages between data points. Science 315(5814), 972–976 (2007)
Ünlü, R., Xanthopoulos, P.: Estimating the number of clusters in a dataset via consensus clustering. Expert Syst. Appl. 125, 33–39 (2019)
Thorndike, R.L.: Who belongs in the family? Psychometrika 18(4), 267–276 (1953)
Rousseeuw, P.J.: Silhouettes: a graphical aid to the interpretation and validation of cluster analysis. J. Comput. Appl. Math. 20, 53–65 (1987)
Caliński, T., Harabasz, J.: A dendrite method for cluster analysis. Commun. Stat. Theory Methods 3(1), 1–27 (1974)
Davies, D.L., Bouldin, D.W.: A cluster separation measure. IEEE Trans. Pattern Anal. Mach. Intell. 2, 224–227 (1979)
Zhou, S., Xu, Z., Liu, F.: Method for determining the optimal number of clusters based on agglomerative hierarchical clustering. IEEE Trans. Neural Netw. Learn. Syst. 28(12), 3007–3017 (2016)
Kingrani, S.K., Levene, M., Zhang, D.: Estimating the number of clusters using diversity. Artif. Intell. Res. 7(1), 15–22 (2018)
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Wu, Z., Bi, D., Pan, J. (2025). Inferring the Number of Clusters for Radar Emitters via Threshold Segmentation and Information Fusion. In: Cai, Z., Takabi, D., Guo, S., Zou, Y. (eds) Wireless Artificial Intelligent Computing Systems and Applications. WASA 2024. Lecture Notes in Computer Science, vol 14997. Springer, Cham. https://doi.org/10.1007/978-3-031-71464-1_23
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