Phase laser ranger based on quadrature modem and frequency reduction

Xian-ze XU; Ming-jie WENG; Feng-qiu XU; Xiang BAI

doi:10.3788/OPE.20172508.1979

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Phase laser ranger based on quadrature modem and frequency reduction

Modern Applied Optics | 更新时间：2020-07-07

- Phase laser ranger based on quadrature modem and frequency reduction
- Optics and Precision Engineering Vol. 25, Issue 8, Pages: 1979-1986(2017)
- 作者机构：
  
  武汉大学电子信息学院, 湖北武汉 430072
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172508.1979
  CLC： TN247;TP394.1
- Received：30 March 2017，
  
  Accepted：04 May 2017，
  
  Published：25 August 2017
- 稿件说明：
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Xian-ze XU, Ming-jie WENG, Feng-qiu XU, et al. Phase laser ranger based on quadrature modem and frequency reduction[J]. Optics and precision engineering, 2017, 25(8): 1979-1986.
DOI：

Xian-ze XU, Ming-jie WENG, Feng-qiu XU, et al. Phase laser ranger based on quadrature modem and frequency reduction[J]. Optics and precision engineering, 2017, 25(8): 1979-1986. DOI： 10.3788/OPE.20172508.1979.

摘要

为了提高激光测距的精度与稳定性，通过改良传统相位激光测距仪，设计了新型正交调制降频与最小二乘法解相位的相位式激光测距仪。使用反射镜实现内外测距光路，通过正交调制技术对发射激光进行幅度调制，接收模块接收到的回波信号经过混频器后再经过低通滤波器将回波信号降频，降低解相难度并提升解相精度。改用分时测量得到距离相位从而消除二次混频方法所产生的附加相移，分别对内外光路低频回波信号采样进行模数转换后使用最小二乘法求解相位。采用多频率调制测量兼顾激光测距范围与测量精度，最后通过超定方程解模糊算法求解多频测距的待测距离。在国家标准基线上进行样机测试，实验结果表明，在60 m量程内正交调制激光测距仪的测量平均误差控制在1.5 mm以内，测距量程内标准差保持在0.9 mm以内。

Abstract

A novel laser range finder method based on the quadrature modem and least square method was investigated to improve the accuracy and reliability of traditional portable phase laser range finders. A reflector was employed for inner and outer optical paths. After amplitude modulation of laser intensity by the quadrature modulation method

the echo signal was mixed with modulation signal and passed through a low-pass filter to reduce the frequency

thus simplifying phase detection and improving solution accuracies. The inner and outer phase shifts were used to eliminate the additional phase shift lead by the secondary mixing. The low frequency echo signal from the inner and outer optical path were sampled for analog to digital conversion respectively

then the phase was solved base on the least square method. Multi-frequency measurement was adopted to maintain the laser ranging range and measurement accuracy. Finally

the measured distance was obtained by solving the laser ranging ambiguity by overdetermined linear equation. The proposed range finder was experimented on the national standard baseline. The results show that the prototypes of those rangers exhibit an average measurement error less than 1.5 mm and an standard deviation less than 0.9 mm in the range of 0~60 m.

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references

曲兴华, 职广涛, 张福民, 等.利用信号拼接提高调频连续波激光测距系统的分辨力[J].光学精密工程, 2015, 23(1):40-47.

QU X H, ZHI G T, ZHANG F M, et al.. Improvement of resolution of frequency modulated continuous wave laser ranging system by signal splicing[J]. Opt. Precision Eng., 2015, 23(1):40-47.

PARK H S, SON S, CHOI S W, et al.. Wireless laser range finder system for vertical displacement monitoring of mega-trusses during construction[J]. Sensors, 2013, 13(5):5796-5813.

施智勇, 潘晓声, 张谦, 等.利用延时法进行高精度脉冲激光测距[J].光学精密工程, 2014, 22(2):252-258.

SHI ZH Y, PAN X SH, ZHANG Q, et al.. High-precision pulsed laser measuring distance by time delay method[J]. Opt. Precision Eng., 2014, 22(2):252-258.

吴军, 于之靖, 诸葛晶昌, 等.采用红外扫描激光与超声技术的室内空间定位[J].光学精密工程, 2016, 24(10):2417-2423.

WU J, YU ZH J, ZHUGE J J, et al.. Indoor positioning by using scanning infrared laser and ultrasonic technology[J]. Opt. Precision Eng., 2016, 24(10):2417-2423.

王锐.激光距离选通成像门宽对图像信噪比影响[J].中国光学, 2015, 8(6):951-956.

WANG R. Effect of gate width of laser range gating imaging on image SNR[J]. Chinese Optics, 2015, 8(6):951-956.

肖洋, 于晋龙, 王菊, 等.二次偏振调制测距系统中调制频率与测距精度的关系[J].物理学报, 2016, 65(10):100601.

XIAO Y, YU J L, WANG J, et al.. Relationship between modulation frequency and range accuracy in the double polarization modulation range finding system[J]. Acta Physica Sinica, 2016, 65(10):100601.

赵文成, 许贤泽, 乐意, 等.基于双探测器的手持式激光测距仪系统设计与实现[J].中南大学学报:自然科学版, 2015, 46(8):2843-2849.

ZHAO W CH, XU X Z, LE Y, et al.. System design and implementation for a portable laser range finder with dual detectors[J]. Journal of Central South University:Science and Technology, 2015, 46(8):2843-2849.

郑大青, 陈伟民, 陈丽, 等.一种基于相位测量的快速高精度大范围的激光测距法[J].光电子·激光, 2015, 26(2):303-308.

ZHENG D Q, CHEN W M, CHEN L, et al.. A laser ranging method with high precision and large range in high speed based on phase measurement[J]. Journal of Optoelectronics·Laser, 2015, 26(2):303-308.

刘邈, 杨学友, 刘常杰.正交混频相位式激光测距方法与系统实现[J].中国激光, 2012, 39(2):0208004.

LIU M, YANG X Y, LIU CH J. Phase shift laser range finding with a novel quadrature modulation method and system implementation[J]. Chinese Journal of Lasers, 2012, 39(2):0208004.

乐意, 许流博, 赵文成, 等.基于最小二乘法的相位式激光测距仪[J].华中科技大学学报:自然科学版, 2014, 42(7):108-112.

LE Y, XU L B, ZHAO W CH, et al.. Phase laser range finder based on least square method[J]. Journal of Huazhong University of Science & Technology:Natural Science Edition, 2014, 42(7):108-112.

李军侠.基于三步搜索算法的解距离模糊方法[J].系统工程与电子技术, 2011, 33(3):557-561.

LI J X. Resolution method of range ambiguity based on three-step-search algorithm[J]. Systems Engineering and Electronics, 2011, 33(3):557-561.

乐意, 许贤泽, 李忠兵, 等.基于超定方程组的相位激光测距解模糊算法[J].仪器仪表学报, 2012, 33(4):930-935.

LE Y, XU X Z, LI ZH B, et al.. Resolution method of laser ranging ambiguity based on overdetermined equation system[J]. Chinese Journal of Scientific Instrument, 2012, 33(4):930-935.

王凯, 段发阶, 郭浩天, 等.基于大频差双频激光的发动机叶尖间隙测量技术[J].光电子·激光, 2013, 24(10):1984-1988.

WANG K, DUAN F J, GUO H T, et al.. Blade tip clearance measurement using dual frequency laser with large frequency difference[J]. Journal of Optoelectronics·Laser, 2013, 24(10):1984-1988.

王选钢, 缑宁祎, 张珂殊.相位式激光测距谱分析鉴相的无偏改进[J].光学精密工程, 2012, 20(4):888-895.

WANG X G, GOU N Y, ZHANG K SH. Unbiased improvement of spectrum analysis phase discrimination for phase-shift laser range finder[J]. Opt. Precision Eng., 2012, 20(4):888-895.

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