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onclick="setCopy('http://water.oecr.com/plugin.php?id=attachcenter:page&aid=87892', '链接已经复制到剪贴板');" type="submit"> <em>复制链接推荐给好友</em></button> <input type="text" class="px vm" onclick="this.select();setCopy(this.value, '链接已经复制到剪贴板');" value="http://water.oecr.com/plugin.php?id=attachcenter:page&aid=87892" size="50" /></p> </div> <div class="bm"> <div class="bm_c xld"> <b>FFT在激光测距系统中的应用:</b><div class="postmsg">FFT在激光测距系统中的应用<br /> FFT in Laser Distance Measuring System Application<br /> 下载全文<br /> <br /> 作 者：张艳林 高秀敏<br /> ZHANG Yanlin, GAO Xiumin （Hangzhou University of Electronic Science and Technology, Hangzhou 310018, China）<br /> 机构地区：杭州电子科技大学,浙江杭州310018<br /> 出 处：《无线互联科技》 2015年第2期 146-148页,共3页<br /> 摘 要：文章从激光的特点和原理出发,简要介绍了相位法激光测距的基本原理,着重突出了FFT（快速傅里叶变换）在高精度中短距离测量上的应用以及在本系统中的优势,从理论上论证了FFT的原理,提出了在DSP上实现FFT的方法。在文中的末尾给出了该方法的误差,并且分析了误差来源,提出了减小误差的方法,提高了系统的测量精度和稳定性。<br /> This article embarks from the laser characteristic and the principle.Introduced briefly the phase method laser ranging basic principle, has highlighted FFT emphatically（the fast Fournier transformation） in the high accuracy mid-and short distance survey application as well as in this system superiority, theoretically has proven the FFT principle, proposed realizes the FFT method on DSP.Has given this method error in article end, and has analyzed the error source, proposed reduced erroneous the method to increase the system measuring accuracy and the stability.<br /> </div> <div style="height200px;"></div> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a 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