Fleet algorithm for X-ray pulsar profile construction and TOA solution based on compressed sensing

被引：13

作者：

Li, Sheng-liang ^{[1
]}

Liu, Kun ^{[1
]}

Xiao, Long-long ^{[1
]}

机构：

[1] Natl Univ Def Technol, Inst Space Technol, Coll Aerosp Sci & Engn, Changsha, Hunan, Peoples R China

来源：

OPTIK | 2014年 / 125卷 / 07期

基金：

中国国家自然科学基金;

关键词：

X-ray pulsar profile; TOA; Compressed sensing; Modeling and simulation;

D O I：

10.1016/j.ijleo.2013.10.032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

X-ray pulse profile and time of arrival (TOA) are the two important physical quantities for pulsar navigation. With the standard and integrated X-ray pulse profiles modeled, X-ray pulse profile construction is studied and TOA is solved using compressed sensing (CS) technology. The observation matrix and waveform complete dictionary are mainly examined. A column vector-based matching pursuit algorithm is presented. The feasibility of obtaining X-ray pulse profile construction by compressed sensing technology is verified by numerical simulation. Compared with the X-ray pulse profile construction method based on epoch folding, the proposed method exhibits improved real-time performance, and its detection time for integrated X-ray pulse profile could be reduced by one order of magnitude. This proposed method can also solve for TOA solution and construct the X-ray pulse profile simultaneously, which is essential to improve pulsar navigation efficiency. Crown Copyright (C) 2013 Published by Elsevier GmbH. All rights reserved.

引用

页码：1875 / 1879

页数：5

共 10 条

[1] Compressed sensing [J].