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Adv. Signal Process."],"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Linear canonical transform (LCT) is a powerful tool for improving the detection accuracy of the conventional Wigner distribution (WD). However, the LCT free parameters embedded increase computational complexity. Recently, the instantaneous cross-correlation function type of WD (ICFWD), a specific WD relevant to the LCT, has shown to be an outcome of the tradeoff between detection accuracy and computational complexity. In this paper, the ICFWD is applied to detect noisy single component and bi-component linear frequency-modulated (LFM) signals through the output signal-to-noise ratio (SNR) inequality modeling and solving with respect to the ICFWD and WD. The expectation-based output SNR inequality model between the ICFWD and WD on a pure deterministic signal added with a zero-mean random noise is proposed. The solutions of the inequality model in regard to single component and bi-component LFM signals corrupted with additive zero-mean stationary noise are obtained respectively. The detection accuracy of ICFWD with that of the closed-form ICFWD (CICFWD), the affine characteristic Wigner distribution (ACWD), the kernel function Wigner distribution (KFWD), the convolution representation Wigner distribution (CRWD) and the classical WD is compared. It also compares the computing speed of ICFWD with that of CICFWD, ACWD, KFWD and CRWD.<\/jats:p>","DOI":"10.1186\/s13634-021-00830-7","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T12:02:48Z","timestamp":1640001768000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Instantaneous cross-correlation function type of WD based LFM signals analysis via output SNR inequality modeling"],"prefix":"10.1186","volume":"2021","author":[{"given":"Sheng-Zhou","family":"Qiang","sequence":"first","affiliation":[]},{"given":"Xian","family":"Jiang","sequence":"additional","affiliation":[]},{"given":"Pu-Yu","family":"Han","sequence":"additional","affiliation":[]},{"given":"Xi-Ya","family":"Shi","sequence":"additional","affiliation":[]},{"given":"An-Yang","family":"Wu","sequence":"additional","affiliation":[]},{"given":"Yun","family":"Sun","sequence":"additional","affiliation":[]},{"given":"Yun-Jie","family":"Chen","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3408-7947","authenticated-orcid":false,"given":"Zhi-Chao","family":"Zhang","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,12,20]]},"reference":[{"issue":"8","key":"830_CR1","doi-asserted-by":"publisher","first-page":"1350","DOI":"10.1364\/JOSAA.395777","volume":"37","author":"A Yelashetty","year":"2020","unstructured":"A. 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