Ionospheric correction of S-band tracking radar data using NavIC S-band signals in missile test range applications

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-03-01 DOI:10.1017/S0373463323000073

Mrinal Goswami, Atanu Santra, Sukabya Dan, R. Ghatak, A. Bose

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引用次数: 0

Abstract

Abstract In missile test ranges, complex missions demand precise trajectory generated by radar. Both the radar and Global Navigation Satellite System (GNSS) signals are affected by atmospheric effects, degrading their accuracy and performance. The Indian Regional Navigation Satellite System/Navigation with Indian Constellation (IRNSS/NavIC) transmits signals in the S-band together with the L-band. This paper presents a novel experimental technique to improve the tracking accuracy of S-band radars using the concurrent NavIC S-band signal. The ionospheric delay using the NavIC S-band signal is calculated first, and the results are used to improve the trajectory data of simultaneously operating S-band radars. This is a unique application of the NavIC S-band signals apart from its conventional usage. During a launch mission, for low elevation angles, the ionospheric error is found to be ~130 m while at higher elevation angles the error values are found to be ~1–3 m. The concept is validated using data from a missile test mission. This report on the use of S-band GNSS signals for the correction of S-band radar range data offers a clear advantage of simplicity and accuracy.

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基于NavIC s波段信号的导弹试验场s波段跟踪雷达数据电离层校正

摘要在导弹试验场中，复杂的任务需要雷达产生精确的弹道。雷达和全球导航卫星系统（GNSS）信号都受到大气影响，降低了它们的精度和性能。印度区域导航卫星系统/印度星座导航（IRNSS/NavIC）在S波段和L波段发射信号。本文提出了一种利用NavIC S波段并行信号提高S波段雷达跟踪精度的新实验技术。首先利用NavIC S波段信号计算电离层延迟，并将计算结果用于改进同时运行的S波段雷达的轨迹数据。这是NavIC S波段信号在传统用途之外的独特应用。在发射任务中，对于低仰角，电离层误差约为130 m，而对于高仰角，误差值约为1–3 m。该概念通过导弹测试任务的数据进行了验证。这份关于使用S波段全球导航卫星系统信号校正S波段雷达测距数据的报告具有简单和准确的明显优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.