Inversions of the Evaporation Duct Heights Utilizing Opportunistic Signals of Navigation Radar

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-09-10 DOI:10.1109/TAP.2024.3454364

Fan Yang;Kunde Yang;Yang Shi;Shuwen Wang;Yihang Shu

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引用次数: 0

Abstract

Evaporation ducts (EDs) can significantly impact marine communications and radar detections. Observations of ED height (EDH) are crucial for the remote sensing of anomalous propagation in different weather conditions. However, there are limitations in existing methods for remote sensing of EDs in large areas and long terms. This article first reports on an over-the-horizon (OTH) propagation measurement campaign lasted for five days over the South China Sea (SCS) to invert EDHs using opportunistic signals of a navigation radar. The results of different measurement systems show good consistency in their measured path loss (PL) and the inverted EDHs. For verifications, results that are predicted by the naval atmospheric vertical surface layer model (NAVSLaM) with observations of air-sea parameters were analyzed. The root-mean-square error (RMSE) between the EDHs inverted from the navigation radar signals and the predicted EDHs was 0.97 m. Based on the opportunistic signals of navigation radar, an EDH inversion method is proposed and verified by the predicted results. This method shows good potential in long-term EDH inversion of OTH propagation links via the opportunistic signals generated from navigation radar widely used on marine vessels.

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利用导航雷达的机会信号反演蒸发管道高度

蒸发管道（ED）会严重影响海洋通信和雷达探测。对蒸发管高度（EDH）的观测对于遥感不同天气条件下的异常传播至关重要。然而，现有方法在大面积和长时间遥感 ED 方面存在局限性。本文首先报告了在中国南海（SCS）上空进行的为期五天的超视距（OTH）传播测量活动，利用导航雷达的机会信号反演 EDH。不同测量系统的结果表明，其测量的路径损耗（PL）和反演的 EDH 具有良好的一致性。为了进行验证，对海军大气垂直表层模型（NAVSLaM）预测的结果和海气参数观测结果进行了分析。根据导航雷达的机会信号，提出了一种 EDH 反演方法，并通过预测结果进行了验证。该方法显示了通过广泛应用于海洋船舶上的导航雷达产生的机会信号对 OTH 传播链路进行长期 EDH 反演的良好潜力。

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

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques