Multi-Frequency Modulation Laser Range Finding System | Yu | Modern Applied Science | CCSE

Multi-Frequency Modulation Laser Range Finding System

Chen Yu
Wang Chunyang
Gao Huan
Liu Huan

Abstract

Traditional laser ranging system has a poor phase measuring accuracy, low anti-jamming capability and time-consuming measurement. A multi-frequency modulation laser range finder method is proposed in this paper. System uses phase detection algorithm to calculate the sine of ranging phase for noisy environments, and the angle is calculated by Coordinate Rotation Digital Computer(CORDIC) angle solver algorithm. When the sampling frequency is 500MHz, the word length is 16-bits, the SNR is 12dB, the measurement range is 100m, the phase difference resolution is higher than 0.0213°, and the distance accuracy is 0.10mm. Experiments proved that the system can meet the need of high-accuracy and low computational complexity.

Full Text: PDF
DOI:10.5539/mas.v9n4p328

This work is licensed under a Creative Commons Attribution 4.0 License.

ISSN(Print): 1913-1844
ISSN(Online): 1913-1852
Started: 2007
Frequency: semiannual

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