无同步三维定位低轨卫星中位精度约31.41公里：《科学报告》以200次蒙特卡洛试验证新方法
《科学报告》11月13日刊出一项低地球轨道卫星三维定位研究，提出一种无需同步的定位方法，使用分布式无源地面天线网络。
该方法将改进的相对接收信号强度测量与阿波罗尼奥斯圆几何结合，并采用多阶段降维技术，以提升多接收机系统中的目标估计精度。
理论结果显示，在200次蒙特卡洛试验中，该方法的三维定位中位精度约为31.41公里，三维角度误差为6.55度；试验中卫星位置随机分布，高度范围为100至500公里。
作者指出，上述性能是在不需要接收机间同步、不需要复杂硬件、不需要高计算负担、也不需要卫星星历先验知识的条件下取得的。
论文作者包括Mohammadreza Khorshidi、Hossein Samimi与Roghieh Karimzadeh Baee等人，论文数字对象标识符为10.1038/s41598-026-79782-7，2026年9月5日收稿、11月3日接受、11月13日刊出。
（来源：《科学报告》）
Synchronization-Free Method Locates LEO Satellites With Median Accuracy of About 31.41 km in Scientific Reports
Scientific Reports published a study on three-dimensional localization of Low Earth Orbit satellites on November 13, 2026, presenting a synchronization-free method using a network of distributed passive ground antennas. The method combines improved relative Received Signal Strength measurements with Apollonius circle geometry, and leverages a multi-stage dimensionality reduction technique to enhance the precision of target estimation in multi-receiver systems. Theoretical results demonstrate that the method achieves a 3D positioning median accuracy of approximately 31.41 km and a 3D angular error of 6.55 degrees over 200 Monte Carlo trials, with randomly distributed satellite positions spanning altitudes from 100 to 500 km. The authors noted that these performance levels are attained without the need for inter-receiver synchronization, complex hardware, complex computational burden or prior knowledge of satellite ephemeris. The paper, by Mohammadreza Khorshidi, Hossein Samimi, Roghieh Karimzadeh Baee and co-authors, carries DOI 10.1038/s41598-026-79782-7. It was received on September 5, 2026, accepted on November 3, 2026 and published on November 13, 2026.
(Source: Scientific)
来源：《科学报告》
发布：GSM·美国（发布链接）
图片来源：图：低轨道卫星拍摄的非洲大陆影像。NASA/NOAA，公共领域，经 Wikimedia Commons。 / Photo: NASA/NOAA, public domain, via Wikimedia Commons.
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