Processing method of laser ranging data based on array of superconducting nanowire single photon detector

Abstract

The utilization of array detection technology is pivotal in augmenting the capability of laser ranging systems to detect echo signals. It can amplify the likelihood of successful detection. But there will be variations amongst the channels due to the array detector’s inconsistency. A response time model is developed based on the detection mechanism of superconducting nanowire single photon detectors (SNSPD). This model is employed in conjunction with ground target calibration measurements to rectify time bias among the channels within the 4-channel Satellite Laser Ranging (SLR) system. The findings indicate that this method adeptly manages channel deviations and mitigates data fluctuations by rectifying the inherent range walk error of SLR measurement data, resulting in improved data quality. The average precision of satellite measurement data in the first half of 2024 increased by .