专利名称：Remote sensing apparatus and a frequency
analysis method of the remote sensingapparatus
发明人：Shimpei Fukata,Noboru Narumi申请号：US11365860申请日：20060302公开号：US07161733B2公开日：20070109
专利附图：
摘要：A remote sensing apparatus includes an optical system device, a frequencyconverter, and a frequency analyzer. The device transmits laser light generated from a
laser light source toward an optical pattern rotary plate to receive its reflection light byan optical receiver. The plate is a measurement object. The converter converts areception signal obtained by the receiver into a signal in a frequency domain. Theanalyzer analyzes a frequency component of the signal obtained by the converter,selects candidate values of sideband wave frequencies from the signal in the frequencyregion, obtains an approximate value of a rotational frequency by decision of a majorityof intervals of the sideband wave frequencies, obtains candidate values of the carrierfrequency from the approximate value, and selects the rotational frequency on the basisof the candidate values of the rotational frequency from among the candidate values ofthe carrier frequency.
申请人：Shimpei Fukata,Noboru Narumi
地址：Kawasaki JP,Yokohama JP
国籍：JP,JP
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
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