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In this paper, USRP N210, USRP-LW N210, and other general software radio peripherals are used to simulate the transmitting and receiving process of radar signals, and a total of 8 radar signals, namely, Barker, Frank, chaotic, P1, P2, P3, P4, and OFDM, are produced. The signal obtains time-frequency images (TFIs) through the Choi\u2013Williams distribution function (CWD). According to the characteristics of the radar signal TFI, a global feature balance extraction module (GFBE) is designed. Then, a new IIF-Net convolutional neural network with fewer network parameters and less computation cost has been proposed. The signal-to-noise ratio (SNR) range is \u221210 to 6\u2009dB in the experiments. The experiments show that when the SNR is higher than \u22122\u2009dB, the signal recognition rate of IIF-Net is as high as 99.74%, and the signal recognition accuracy is still 92.36% when the SNR is \u221210\u2009dB. Compared with other methods, IIF-Net has higher recognition rate and better robustness under low SNR.<\/jats:p>","DOI":"10.1155\/2020\/8858588","type":"journal-article","created":{"date-parts":[[2020,8,29]],"date-time":"2020-08-29T03:21:51Z","timestamp":1598671311000},"page":"1-8","source":"Crossref","is-referenced-by-count":8,"title":["A Radar Signal Recognition Approach via IIF-Net Deep Learning Models"],"prefix":"10.1155","volume":"2020","author":[{"given":"Ji","family":"Li","sequence":"first","affiliation":[{"name":"School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huiqiang","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8507-6386","authenticated-orcid":true,"given":"Jianping","family":"Ou","sequence":"additional","affiliation":[{"name":"ATR Key Laboratory, National University of Defense Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2298-3429","authenticated-orcid":true,"given":"Wei","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2978875"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1007\/s00521-019-04494-1"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.14257\/ijca.2014.7.12.36"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/access.2020.2980363"},{"issue":"3","key":"10","first-page":"1000","volume":"49","year":"2019","journal-title":"Journal of Jilin University (Engineering and Technology Edition)"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1117\/1.oe.58.4.040901"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.2991\/ijcis.d.191209.001"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1155\/2020\/7602384"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1155\/2020\/8859172"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1155\/2020\/8893419"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1109\/access.2019.2892526"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1109\/access.2018.2864347"}],"container-title":["Computational Intelligence and Neuroscience"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/cin\/2020\/8858588.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/cin\/2020\/8858588.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/cin\/2020\/8858588.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,8,29]],"date-time":"2020-08-29T03:21:56Z","timestamp":1598671316000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/cin\/2020\/8858588\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,8,28]]},"references-count":12,"alternative-id":["8858588","8858588"],"URL":"https:\/\/doi.org\/10.1155\/2020\/8858588","relation":{},"ISSN":["1687-5265","1687-5273"],"issn-type":[{"type":"print","value":"1687-5265"},{"type":"electronic","value":"1687-5273"}],"subject":[],"published":{"date-parts":[[2020,8,28]]}}}