面向可选飞机定位的高精度DME：大功率DME中的SFOL脉冲传输

IF 5.7 2区计算机科学 Q1 ENGINEERING, AEROSPACE

IEEE Transactions on Aerospace and Electronic Systems Pub Date : 2025-06-09 DOI:10.1109/TAES.2025.3578290

Jongmin Park;Seowoo Park;Sunghwa Lee;Jiwon Seo;Euiho Kim

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引用次数: 0

摘要

拉伸前腿（SFOL）脉冲是一种先进的距离测量设备（DME）脉冲，与传统的高斯脉冲相比，它提供了更高的测距精度。最近，利用功率放大器的数字预失真（DPD）技术，商用高斯脉冲DME在低功耗模式下成功地实现了SFOL脉冲传输。这些调整是通过软件修改实现的，在不替换现有DME基础设施的情况下实现SFOL集成。然而，SFOL脉冲的设计是通过利用DME规范中允许的有效辐射功率和脉冲形状参数来优化测距能力。因此，它对这些规范的操作余地很小，可能导致在高功率模式下传输时不符合规范。本文介绍了一些策略，使基于高斯脉冲的DME能够在高功率模式下传输SFOL脉冲，同时符合DME规范。提出的策略包括使用SFOL脉冲的变体和DPD技术，利用截断奇异值分解，为大功率DME操作量身定制。在利用商用高斯脉冲DME的试验台上进行的测试结果证明了这些策略的有效性，确保在高功率模式下符合DME规范，并且性能损失最小。该研究能够经济高效地将高精度SFOL脉冲集成到现有的大功率DME系统中，在确保符合行业标准的同时提高飞机定位精度。

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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Toward High Accuracy DME for Alternative Aircraft Positioning: SFOL Pulse Transmission in High-Power DME

The stretched-front-leg (SFOL) pulse is an advanced distance measuring equipment (DME) pulse that offers superior ranging accuracy compared to conventional Gaussian pulses. Successful SFOL pulse transmission has been recently demonstrated from a commercial Gaussian pulse-based DME in low-power mode utilizing digital predistortion (DPD) techniques for power amplifiers. These adjustments were achieved through software modifications, enabling SFOL integration without replacing existing DME infrastructure. However, the SFOL pulse is designed to optimize ranging capabilities by leveraging the effective radiated power and pulse shape parameters permitted within DME specifications. Consequently, it operates with narrow margins against these specifications, potentially leading to noncompliance when transmitted in high-power mode. This article introduces strategies to enable a Gaussian pulse-based DME to transmit the SFOL pulse while adhering to DME specifications in high-power mode. The proposed strategies involve use of a variant of the SFOL pulse and DPD techniques utilizing truncated singular value decomposition, tailored for high-power DME operations. Test results, conducted on a testbed utilizing a commercial Gaussian pulse-based DME, demonstrate the effectiveness of these strategies, ensuring compliance with DME specifications in high-power mode with minimal performance loss. This study enables cost-effective integration of high-accuracy SFOL pulses into existing high-power DME systems, enhancing aircraft positioning precision while ensuring compliance with industry standards.

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来源期刊

IEEE Transactions on Aerospace and Electronic Systems 工程技术-电信学

CiteScore

7.80

自引率

13.60%

发文量

433

审稿时长

8.7 months

期刊介绍： IEEE Transactions on Aerospace and Electronic Systems focuses on the organization, design, development, integration, and operation of complex systems for space, air, ocean, or ground environment. These systems include, but are not limited to, navigation, avionics, spacecraft, aerospace power, radar, sonar, telemetry, defense, transportation, automated testing, and command and control.