{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T00:15:53Z","timestamp":1760228153959,"version":"build-2065373602"},"reference-count":23,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,5,7]],"date-time":"2022-05-07T00:00:00Z","timestamp":1651881600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the National Science Foundation of Key national Defense basic Research projects","award":["41409030301"],"award-info":[{"award-number":["41409030301"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In order to master the position variation rule of radar false alarm signal under continuous wave (CW) electromagnetic interference and reveal the mechanism of CW on radar, taking a certain type of stepping frequency radar as the research object, theoretical analysis of the imaging mechanism of radar CW electromagnetic interference false alarm signals from the perspective of time-frequency decoupling and receiver signal processing. Secondly, electromagnetic interference injection method is used to test the single-frequency and dual-frequency electromagnetic interference effect of the tested equipment. The results show that under the single frequency CW electromagnetic interference, the sensitive bandwidth of false alarm signal is about \u00b175 MHz, and the position of false alarm signal irregularity changes. Under the in-band dual-frequency CW electromagnetic interference, the position of non-intermodulation false alarm signal is similar to that of single frequency. However, the distance difference of two non-intermodulation false alarm signals is regular. In addition, the positions of the second-order intermodulation false alarm signals of the tested radar are also regular, and its position changes with the change of the second-order intermodulation frequency difference.<\/jats:p>","DOI":"10.3390\/s22093574","type":"journal-article","created":{"date-parts":[[2022,5,8]],"date-time":"2022-05-08T23:27:25Z","timestamp":1652052445000},"page":"3574","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Research on Dual-Frequency Electromagnetic False Alarm Interference Effect of a Typical Radar"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8412-6804","authenticated-orcid":false,"given":"Xue","family":"Du","sequence":"first","affiliation":[{"name":"National Key Laboratory on Electromagnetic Environmental Effects, Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guanghui","family":"Wei","sequence":"additional","affiliation":[{"name":"National Key Laboratory on Electromagnetic Environmental Effects, Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1767-6918","authenticated-orcid":false,"given":"Kai","family":"Zhao","sequence":"additional","affiliation":[{"name":"63870 Troops, Huayin 714200, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5447-3140","authenticated-orcid":false,"given":"Hongze","family":"Zhao","sequence":"additional","affiliation":[{"name":"National Key Laboratory on Electromagnetic Environmental Effects, Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuxu","family":"Lyu","sequence":"additional","affiliation":[{"name":"National Key Laboratory on Electromagnetic Environmental Effects, Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"59","DOI":"10.13164\/re.2020.0059","article-title":"Ku-Band High Performance Monopulse Microstrip Array Antenna Based on Waveguide Coupling Slot Array Feeding Network","volume":"29","author":"Zou","year":"2020","journal-title":"Radioengineering"},{"key":"ref_2","first-page":"12246","article-title":"Evaluation of Deceptive Jamming Effect on SAR Based on Visual Consistency","volume":"11","author":"Tang","year":"2022","journal-title":"IEEE J. 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