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Range resolution improvement of range gated lidar system by phase coded method

  • Long Wu*
  • , Jiajia Xu
  • , Xiaocheng Yang
  • , Wentao Lv
  • , Qingheng Zhang
  • , Jindi Yan
  • , Yong Zhang
  • , Yuan Zhao
  • *Corresponding author for this work
  • Zhejiang Sci-Tech University
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The conventional range gated lidar systems require long laser pulse width and range bins to maintain the far detection range, which limits the ranging resolution of the system. A range gated lidar system with phase coded method is proposed with high ranging resolution. The system utilizes a kN+1 bits of the laser pulse sequence and controls the accumulation of the detector in the range bins to get the echo signals. The correlation calculation of the accumulated signals is conducted in the computer to acquire the targe range with the ranging resolution defined by the sequence bit width. The indoor demonstration experiment achieved 2 us resolution with the sampling period of 32 us by employing a 15-bit m-sequence. The result shows the ability of achieving high ranging resolution of range gated lidar.

Original languageEnglish
Title of host publication2016 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6205-6208
Number of pages4
ISBN (Electronic)9781509033324
DOIs
StatePublished - 1 Nov 2016
Event36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016 - Beijing, China
Duration: 10 Jul 201615 Jul 2016

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2016-November

Conference

Conference36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016
Country/TerritoryChina
CityBeijing
Period10/07/1615/07/16

Keywords

  • Range gated lidar
  • Resolution improvement
  • phase coded method

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