Performance Analysis of the First Korean Satellite Laser Ranging System

Self Cite

The Accurate Ranging System for Geodetic Observation -Mobile (ARGO-M) was successfully developed as the first Korean mobile Satellite Laser Ranging (SLR) system in 2012, and has joined in the International Laser Ranging Service (ILRS) tracking network, DAEdeoK (DAEK) station. The DAEK SLR station was approved as a validated station in April 2014, through the ILRS station "data validation" process. The ARGO-M system is designed to enable 2 kHz laser ranging with millimeter-level precision for geodetic, remote sensing, navigation, and experimental satellites equipped with Laser Retroreflector Arrays (LRAs). In this paper, we present the design and development of a next generation high-repetition-rate SLR system for ARGO-M. The laser ranging rate up to 10 kHz is becoming an important issue in the SLR community to improve ranging precision. To implement high-repetition-rate SLR system, the High-repetition-rate SLR operation system (HSLR-10) was designed and developed using ARGO-M Range Gate Generator (A-RGG), so as to enable laser ranging from 50 Hz to 10 kHz. HSLR-10 includes both hardware controlling software and data post-processing software. This paper shows the design and development of key technologies of high-repetition-rate SLR system. The developed system was tested successfully at DAEK station and then moved to Sejong station, a new Korean SLR station, on July 1, 2015. HSLR-10 will begin normal operations at Sejong station in the near future.

Section: Introductionmentioning

confidence: 92%

Design and Development of High-Repetition-Rate Satellite Laser Ranging System

Choi

Bang²,

Sung³

et al. 2015

Self Cite

“…This started with the preparation of the space exploration program in the first space development promotion basic plan (June 2007) and continued to the specifics of the lunar exploration plan in the detailed roadmap of the first space development promotion (November 2007). Each year since the planning research was conducted, research on lunar exploration has been carried out with the establishment of the lunar exploration plan in 2008 (Choi et al 2014). The number of papers in the space applications field is 117, accounting for 10.5% of the total.…”

Section: Classification By Research Topic Of Published Papersmentioning

confidence: 99%

“…This means that approximately four authors are engaged in the completion of one article. The article with the highest number of authors was "Performance Analysis of the First Korean Satellite Laser Ranging System" (Choi et al 2014), which was published in Volume 31, Issue 3, 2014. It is confirmed that a total of 19 researchers from the Korea Astronomy and Space Science Institute and Chungnam National University participated in that study.…”

Section: Analysis Of Authors and Their Affiliationsmentioning

confidence: 99%

Analysis of Papers Published in the Journal of Astronomy and Space Sciences from 1984 to 2018

Jeon¹,

Kim²

2019

This paper presents at the characteristics of publications in the Journal of Astronomy and Space Sciences from 1984 to 2018. Since its first publication, a total of 1,113 papers (~35 volumes) have been published up to December 2018. While the space astronomy field has made up a large portion of the total number of papers, the number of annually published papers in this field is decreasing. In contrast, the number of papers in the space environment field has been showing an increasing trend since 2013, accounting for more than 30% of the annual publications. The participation rate of foreign researchers has been maintained at greater than 20% since 2012. Despite the decrease in the number of paper per year, there are positive developments including sustained foreign researcher participation at greater than 20% and improvements in the impact factor. We believe that JASS has the potential to enter the distinguished level of international academic journals following a welldeveloped future road map.

“…It is designed to enable 2 kHz laser ranging up to the MEO altitude with millimeter-level precision for geodetic, remotesensing, navigational and experimental satellites equipped with laser retro-reflector (Choi et al 2014;Choi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Conditional Signal-Acquisition Parameter Selection for Automated Satellite Laser Ranging System

Kim¹,

Lim²,

Kim³

2019

Self Cite

An automated signal-acquisition method for the NASA’s space geodesy satellite laser ranging (SGSLR) system is described as a selection of two system parameters with specified probabilities. These parameters are the correlation parameter: the minimum received pulse number for a signal-acquisition and the frame time: the minimum time for the correlation parameter. The probabilities specified are the signal-detection and false-acquisition probabilities to distinguish signals from background noise. The steps of parameter selection are finding the minimum set of values by fitting a curve and performing a graphdomain approximation. However, this selection method is inefficient, not only because of repetition of the entire process if any performance values change, such as the signal and noise count rate, but also because this method is dependent upon system specifications and environmental conditions. Moreover, computation is complicated and graph-domain approximation can introduce inaccuracy. In this study, a new method is proposed to select the parameters via a conditional equation derived from characteristics of the signal-detection and false-acquisition probabilities. The results show that this method yields better efficiency and robustness against changing performance values with simplicity and accuracy and can be easily applied to other satellite laser ranging (SLR) systems.