A degradation model for ranging ability evaluation through precision curves

Li Xue; Ming Li; Liangliang Wang

doi:10.1117/12.2069713

3 December 2014 A degradation model for ranging ability evaluation through precision curves

Li Xue, Ming Li, Liangliang Wang

Proceedings Volume 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors; 92970C (2014) https://doi.org/10.1117/12.2069713
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

Ranging ability valuation for high-repetition laser ranging system (High-repetition LRS) is essential in space debris measurement. Traditional approaches are usually based on system parameters, such as laser transmission frequency, single pulse energy, transmission aperture, etc. However, precision is not properly evaluated when system conditions varies from ideal conditions. In this paper, a degradation model with a new decrement process based on precision curves is proposed. First, the equation of detection probability and ranging distance is derived. Then, a degradation model to get detection-probability-dependent precision curves is established——a decrement process of data sparsity is simulated, by gradually decreasing effective data while keeping all the noisy data remained. From the curve, a detection probability “threshold” can be seen, from which the ranging ability of the LRS system can be evaluated. In this degradation model, the demanded ranging precision is satisfied automatically. The novel method is reliable and simple with only the detection-probability-dependent precision curve needed. Degradation modeling based on high-repetition ranging experiments for space debris——NORAD 10861, 11574, 16182, 25530 shows an improvement by about 20% in ranging ability evaluation without sacrificing the ranging precision.

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Li Xue, Ming Li, and Liangliang Wang "A degradation model for ranging ability evaluation through precision curves", Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 92970C (3 December 2014); https://doi.org/10.1117/12.2069713

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KEYWORDS

Ranging

Data modeling

Lawrencium

Distance measurement

Process modeling

Data processing

Pulsed laser operation

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