Method for eliminating interference of broadband time domain in pulsar arrival time data

A technology of arrival time and pulsar, applied in astronomical navigation and other directions, can solve the problems of affecting the contour shape of pulsar, complex establishment, difficult to realize, etc., to achieve the effect of reliable guarantee and improved accuracy
CN106289239AActive Publication Date: 2017-01-04XINJIANG ASTRONOMICAL OBSERVATORY CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XINJIANG ASTRONOMICAL OBSERVATORY CHINESE ACADEMY OF SCI
Publication Date
2017-01-04

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Abstract

The invention relates to the technical field of astrophysics, and in particular relates to a method for eliminating the interference of a broadband time domain in pulsar arrival time data. The method comprises the following steps: observing a pulse signal of a pulsar, obtaining a periodical pulse outline of the pulsar, eliminating a dispersion delay of the periodical pulse outline of the pulsar, observing broadband radio interference in the pulse signal data of the pulsar, and eliminating the interference of the broadband time domain in the pulsar arrival time data. By utilizing the correlation of the broadband time domain interference, the broadband time domain interference is eliminated by virtue of channel subtraction so as to eliminate the broadband time domain interference in the pulsar observation data, a real pulsar outline is obtained, the precision of the pulsar arrival time is improved, and the observation and research of the pulsar arrival time can be more reliably guaranteed.
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Description

technical field

[0001] The invention relates to the technical field of astrophysics, in particular to a method for eliminating broadband time-domain interference in pulsar time-of-arrival data. Background technique

[0002] Pulsar is one of the four major astronomical discoveries in the 1960s. Its discovery has had a huge impact on the development of contemporary astrophysics. Related research work has won the Nobel Prize in Physics twice, which shows that the observation and theory of pulsars The research is of great scientific significance. The observation and research of pulsars has always been a hot spot in the field of astrophysics. It is a "natural laboratory" for studying the properties and laws of matter under extreme physical conditions.

[0003] One of the most notable features of pulsars is their extremely stable rotation period. Long-term monitoring results show that the long-term stability of their period is comparable to or even better than that of atomic clock...

Claims

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