Calibration and filtering of X-ray line array detector

Lei, 耿 磊 Geng; Xiao, 马 潇 Ma; Zhitao, 肖志涛 Xiao; Fang, 张芳 Zhang; Feng, 荣 锋 Rong; Xiaoshuai, 彭晓帅 Peng

doi:10.3788/irla201746.1226001

Cited by 1 publication

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“…Besides, to guarantee the precision of the measurement, X-ray detector calibration and noise filtering should be considered. An X-ray detector calibration can be realized using "two-point calibration" [33]. For the calibration method, two scaling points, φ 1 and φ 2 , are set.…”

Section: Pulsar Observation Modelmentioning

confidence: 99%

A Pulsar Vector Observation-Based Link Acquisition Method for X-Ray Communications

Song,

Lu,

Wang

2023

International Journal of Aerospace Engineering

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X-ray communication (XCOM) is an emerging laser communication technique for deep space applications. Traditional link acquisition of laser communications depends significantly on Earth support and shows little autonomy. For XCOM, a pulsar vector observation-based link acquisition method is proposed, which utilizes noncooperative pulsars in deep space as beacons to acquire absolute attitude information and accomplish link acquisition. Firstly, a pulsar vector observation model was established based on the coordinate definition of the X-ray detector and X-ray collimator model. Secondly, a modified “success-failure” pulsar vector search algorithm with two degrees of freedom was proposed to acquire the pulsar vector. With the pulsar vector and the relative attitude obtained from inertial sensors, the link acquisition pointing vector could be determined. Finally, the performance of the proposed method was evaluated using numerical experiments, and factors that influence the performance are discussed and analyzed.

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Section: Pulsar Observation Modelmentioning

confidence: 99%