脉冲到达时间产生方法的比较分析
A comparative analysis of pulse time-of-arrival creation methods
摘要：
精确提取脉冲到达时间及其不确定度是高精度脉冲星计时的第一步，也是最基本的一步。在经典方法中，TOA是通过与该轮廓的理想化“1D”模板的互相关从散射体的总强度脉冲轮廓导出的。虽然在文献中已经提出了一些结果，依赖于不断增加的灵敏度，这样的脉冲星定时实验，有没有共识的最可靠的方法TOA创建，更重要的是，相关的TOA的不确定性为每个计划。在这篇文章中，我们提出了一个全面的比较TOA确定的做法，重点是创建定时模板，TOA确定方法和最有用的TOA带宽。其目的是提出一种可能的TOA优化方法，以及（部分）确定最佳TOA创建方案和演示的优化之间的差异，卫星和数据集。我们比较了数据衍生的模板配置文件的值相比，分析配置文件和评估三个最常用的模板匹配方法。最后，我们研究了定时精度和TOA带宽之间的关系，以确定任何潜在的中断关系。作为一个实际的演示，我们应用我们选择的方法，欧洲脉冲星定时阵列数据上的三个测试脉冲星PSR\ J0218+4232，J1713+0747和J2145 $-$ 0750。
英文摘要：
Extracting precise pulse times of arrival (TOAs) and their uncertainties is the first and most fundamental step in high-precision pulsar timing. In the classical method, TOAs are derived from total intensity pulse profiles of pulsars via cross-correlation with an idealised `1D' template of that profile. While a number of results have been presented in the literature relying on the ever increasing sensitivity of such pulsar timing experiments, there is no consensus on the most reliable methods for TOA creation and, more importantly, the associated TOA uncertainties for each scheme. In this article, we present a comprehensive comparison of TOA determination practices, focusing on the creation of timing templates, TOA determination methods and the most useful TOA bandwidth. The aim is both to present a possible approach towards TOA optimisation as well as the (partial) identification of an optimal TOA-creation scheme and the demonstration of optimisation differences between pulsars and data sets. We compare the values of data-derived template profiles as compared to analytic profiles and evaluate the three most commonly used template-matching methods. Finally, we study the relation between timing precision and TOA bandwidth to identify any potential breaks in that relationship. As a practical demonstration, we apply our selected methods to European Pulsar Timing Array data on the three test pulsars PSRs\ J0218+4232, J1713+0747 and J2145$-$0750.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
