Abstract
Single-photon Light Detection and Ranging (Lidar) has been widely used for long-range ranging due to its single-photon sensitivity and picosecond timing resolution. However, it is still a great challenge to range long-range targets with high accuracy in a short time regardless of whether target is static or dynamic. It is because that the existing long-range single-photon ranging techniques both have non-negligible drawbacks: Coded Signal Ranging (CSSR) with long computation time and Multi-Repetition Rate Ranging (MRRSR) technology with low accuracy. Therefore, the coded multi-repetition rate single-photon ranging (CMSPR) method is proposed to achieve high-accuracy ranging with a short computation time. And coded dual-repetition rate single-photon ranging (CDSPR) system with neighboring coding lengths is proposed to simplify the solution process, which can directly have analytical solutions. Besides, the data centralization method (DCM) based on the coding technique is proposed to further enhance the performance of CDSPR, which is a data pre-processing method based on the characteristics of CDSPR. Results show that CDSPR with DCM can provide a higher ranging error with less computation time.
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