| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a distance measuring device, a distance measuring method and a program which achieves measuring of a distance to a measuring target with a simple configuration. <P>SOLUTION: A distance measuring device 1 transmits an optical transmission wave to a measuring target according to a first PN code signal generated based on a first clock signal, receives a reflected wave of the optical transmission wave, generates a first correlation signal by multiplying the reflected wave and a second PN code signal generated based on a second clock signal which has a similar frequency to that of the first clock signal, generates a second correlation signal by multiplying the first PN code signal and the second PN code signal, generates first and second correction signals in which frequency bands of the respective first and second correlation signals are reduced, and calculates a distance to the measuring target based on a ratio between capacitance of first and second capacitors which perform charging and discharging based on the first and second correction signals. <P>COPYRIGHT: (C)2012,JPO&INPIT |
