{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,22]],"date-time":"2024-08-22T07:41:30Z","timestamp":1724312490114},"reference-count":29,"publisher":"Institution of Engineering and Technology (IET)","issue":"5","license":[{"start":{"date-parts":[[2023,5,13]],"date-time":"2023-05-13T00:00:00Z","timestamp":1683936000000},"content-version":"vor","delay-in-days":12,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["ietresearch.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IET Signal Processing"],"published-print":{"date-parts":[[2023,5]]},"abstract":"Abstract<\/jats:title>It is difficult for a receiver to intercept the signals from a radar system that can emit low probability of intercept (LPI) polyphase coded signals. The traditional Wigner Hough transform (WHT) algorithm requires a large amount of computation and takes a long time to estimate the parameters of the LPI radar polyphase coded signals. To address this problem, an iterative angle search (IAS) algorithm, which when used in combination with the WHT algorithm significantly reduces the computational cost is proposed. When the signal\u2010to\u2010noise ratio is in the range of \u22124 to 20\u00a0dB, the carrier frequency, number of subcodes, and number of cycles of the carrier frequency per subcode of five polyphase coded signals, namely, Frank, P1, P2, P3, and P4, are accurately estimated in simulation experiments. Based on the selected IAS algorithm parameters, the estimation accuracy of the proposed method is the same as that of the traditional WHT algorithm. However, the operation time is only 5.14% of that of the traditional method. The IAS algorithm has certain application prospects. Experiments indicate that the proposed algorithm provides excellent performance and can rapidly and accurately estimate the parameters of LPI polyphase codes.<\/jats:p>","DOI":"10.1049\/sil2.12224","type":"journal-article","created":{"date-parts":[[2023,5,13]],"date-time":"2023-05-13T07:44:38Z","timestamp":1683963878000},"update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A fast Wigner Hough transform algorithm for parameter estimation of low probability of intercept radar polyphase coded signals"],"prefix":"10.1049","volume":"17","author":[{"ORCID":"http:\/\/orcid.org\/0000-0001-7755-8019","authenticated-orcid":false,"given":"Jincheng","family":"Yang","sequence":"first","affiliation":[{"name":"PLA Strategic Support Force Information Engineering University Zheng Zhou China"}]},{"given":"Shiwen","family":"Chen","sequence":"additional","affiliation":[{"name":"PLA Strategic Support Force Information Engineering University Zheng Zhou China"}]},{"given":"Jinpeng","family":"Dong","sequence":"additional","affiliation":[{"name":"PLA Strategic Support Force Information Engineering University Zheng Zhou China"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-9700-4459","authenticated-orcid":false,"given":"Xiao","family":"Han","sequence":"additional","affiliation":[{"name":"PLA Strategic Support Force Information Engineering University Zheng Zhou China"}]}],"member":"265","published-online":{"date-parts":[[2023,5,13]]},"reference":[{"key":"e_1_2_9_2_1","volume-title":"ELINT: The Interception and Analysis of Radar Signals","author":"Wiley R.G.","year":"2006"},{"key":"e_1_2_9_3_1","volume-title":"Detecting and Classifying Low Probability of Intercept Radar, Second Edition","author":"Pace P.E.","year":"2009"},{"issue":"3","key":"e_1_2_9_4_1","first-page":"217","article-title":"The Wigner distribution \u2010 a tool for time\u2010frequency signal analysis .1. 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