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In FMCW laser range sensors, nonlinear frequency sweep can severely degrade the measurement accuracy because it gives the system ambiguity when determining the target range. In general, voltage controlled oscillators (VCO) which are used for frequency modulation show nonlinear frequency sweep property even though the input voltage signal is a linear ramp signal. To solve this problem, we adopt an additional fixed delay structure to extract the nonlinearity and compensate it. The proposed linearization method has been worked out through the numerical process and the simulation, and this method effectively eliminates the nonlinear frequency sweep problem. <\/jats:p>","DOI":"10.1155\/2013\/294967","type":"journal-article","created":{"date-parts":[[2013,6,25]],"date-time":"2013-06-25T06:27:19Z","timestamp":1372141639000},"page":"294967","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Correction of Nonlinear Frequency Sweep in Frequency-Modulated Continuous-Wave Laser Range Sensor"],"prefix":"10.1177","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0739-4404","authenticated-orcid":false,"given":"Soo-Yong","family":"Jung","sequence":"first","affiliation":[{"name":"School of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seong Ro","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Information and Electronics Engineering, Mokpo National University, Yeongsan-ro, Cheonggye-myeon, Jeollanam-do, Muan-gun 1666, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang-Soo","family":"Park","sequence":"additional","affiliation":[{"name":"School of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2013,6,24]]},"reference":[{"key":"B1-2013-294967","doi-asserted-by":"publisher","DOI":"10.1109\/5.482232"},{"key":"B2-2013-294967","doi-asserted-by":"publisher","DOI":"10.1117\/1.1631921"},{"key":"B3-2013-294967","doi-asserted-by":"publisher","DOI":"10.1007\/BF00619793"},{"key":"B4-2013-294967","doi-asserted-by":"publisher","DOI":"10.1117\/1.1330700"},{"issue":"2","key":"B5-2013-294967","first-page":"112","volume":"5","author":"Nejad S. 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