X-ray pulsar angular position measurement ground simulation verification system and its application method
A technology of ground simulation and verification system, applied in the directions of measurement device, measurement angle, surveying and navigation, etc., can solve the problems of X-ray inpenetrability, high cost of space flight test, high risk, etc., to reduce errors and avoid waveform distortion , the effect of high reliability
Active Publication Date: 2021-09-28
XIDIAN UNIV
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[0005] In order to achieve the above object, the present invention provides a ground simulation verification system for X-ray pulsar angular position measurement and its use method, which solves the problem that the X-rays radiated by pulsars in the prior art cannot penetrate the earth's atmosphere and can only be carried out outside the atmosphere. Observation, and space flight test is expensive and risky
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[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] X-ray pulsar angular position measurement ground simulation verification system based on dual-satellite platform, such as figure 1 As shown, it includes: light beam generation and conversion device 1, waveform processing unit 1, waveform processing unit 2 3, time calibration unit 1 4, time calibration unit 2 5, atomic clock 6, program-controlled computer 7, and true random number generation unit 8;
[0054] Beam generation and conversion device 1, used ...
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The invention discloses an X-ray pulsar angle position measurement ground simulation verification system and a method for using the same. The X-ray pulsar angle position measurement ground simulation verification system includes: a beam generation and conversion device, a waveform processing unit 1, and a waveform processing unit 2 1. Time calibration unit 1. Time calibration unit 2. Atomic clock, program-controlled computer, true random number generation unit. The present invention simulates X-ray pulsar signals by means of constant light source and random screening, the system structure is simple, waveform distortion in time domain caused by modulation of light source is avoided, and X-ray pulsar signal simulation with multiple physical characteristics is supported. The reliability of the signal is high.
Description
technical field [0001] The invention belongs to the technical field of astrometry, and relates to a ground simulation verification system for X-ray pulsar angular position measurement based on a double-satellite platform and an application method thereof. Background technique [0002] In the fields of constructing and maintaining a high-quality space-time reference system and realizing autonomous navigation of space astronomy, it is necessary to measure the angular position of celestial bodies with high precision. Pulsars are high-speed rotating neutron stars that periodically radiate electromagnetic signals. By measuring the angular position of pulsars with high precision, the basic star catalog can be enriched and improved, and the accuracy of space-time reference and pulsar navigation can be improved. [0003] At present, the measurement of the angular position of pulsars mainly relies on the very long baseline interferometry (VLBI) technology on the ground. The radio wav...
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IPC IPC(8): G01C25/00G01C1/00
CPCG01C1/00G01C25/00
Inventor 孙海峰方海燕丛少鹏刘彦明李小平苏剑宇包为民
Owner XIDIAN UNIV