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Doppler causes a frequency shift in the frequency dimension and a time delay in the time dimension, which makes it impossible for a single HFM signal to measure speed accurately. However, the time delay caused by the same moving target to HFM signals with different frequency bands and different pulse widths is also different. A velocity measurement method combining HFM signals (VCH) is proposed, which employs the time delay correlation between the combined HFM signals to achieve the target distance and speed. In the VCH method, the echo signal is no longer matched and filtered as a whole but is divided into two channels and matched and filtered separately. And then, the combined HFM signals are used to obtain the distance and speed of the target. Extensive simulation results show that the proposed method can estimate the distance and speed of moving targets accurately, and it has reference value for engineering application.<\/jats:p>","DOI":"10.1155\/2024\/4022298","type":"journal-article","created":{"date-parts":[[2024,4,5]],"date-time":"2024-04-05T00:38:38Z","timestamp":1712277518000},"page":"1-14","source":"Crossref","is-referenced-by-count":1,"title":["VCH: A Velocity Measurement Method Combining HFM Signals"],"prefix":"10.1155","volume":"2024","author":[{"given":"Wei","family":"Yan","sequence":"first","affiliation":[{"name":"Hangzhou Institute of Applied Acoustics, Hangzhou 310023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3897-7629","authenticated-orcid":true,"given":"Caixia","family":"Song","sequence":"additional","affiliation":[{"name":"College of Science and Information, Qingdao Agricultural University, Qingdao 266109, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8838-1279","authenticated-orcid":true,"given":"Yuankun","family":"Peng","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Applied Acoustics, Hangzhou 310023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zeng","family":"Liang","sequence":"additional","affiliation":[{"name":"Hangzhou Institute of Applied Acoustics, Hangzhou 310023, China"},{"name":"Eastern Communication Company Limited, Hangzhou 310023, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","volume-title":"Principle of active sonar detection information","author":"K. 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