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- W4384498180 abstract "Abstract In order to improve the accuracy of pulse laser ranging based on time-of-flight (TOF), this paper proposes a laser ranging method based on double threshold echo pulse prediction correction. By using two high-speed comparators with different thresholds to detect the pulse-echo signal, the initial TOF, pulse width, and edge rate can be obtained. These three parameters are combined with statistical functions to accurately predict the peak position of the echo pulse and obtain the corrected TOF. Finally, the accurate measurement distance is calculated. In the aspect of improving ranging accuracy, this method overcomes the shortcoming that the traditional TOF pulse laser rangefinder has large errors in measuring targets with different reflectivity. This method only uses two high-speed comparators and a monostable trigger more than traditional TOF laser ranging systems. Adding these simple circuits can greatly improve the accuracy of laser ranging. The system structure is simple and the cost is low. Experimental results show that this method can achieve accurate distance measurement, and the measurement error is significantly reduced. This method can greatly improve the performance of the TOF laser rangefinder." @default.
- W4384498180 created "2023-07-18" @default.
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- W4384498180 date "2023-07-27" @default.
- W4384498180 modified "2023-09-27" @default.
- W4384498180 title "Laser ranging method based on dual-threshold echo pulse prediction and correction" @default.
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- W4384498180 doi "https://doi.org/10.1088/1361-6501/ace7ec" @default.
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