在信息时代，全球定位系统（GNSS）的普及无疑改变了人们的生活方式和工作模式。然而，在这一高科技背景下，电离层异常对GNSS定位的影响，不容小觑，成为了地理信息科学界亟需解决的重要课题。最近发布的《全球定位系统》期刊2025年第50卷第1期深度探讨了电离层异常情况下的GNSS定位性能问题，本文将带您深入解析其核心研究成果，展望未来的技术发展与应用。

Of these approaches, PPP — generally based on the state-space reduction of measurement errors to a single GNSS receiver from a wide area calibration network — has evolved dramatically. Why should ...

为了获得高精度位置信息，ZED-X20P能够支持广泛的GNSS校正，其中包括经由卫星通过L波段提供的服务，但无需额外的硬件。客户可以选择u-blox的PointPerfect，它可提供全方位的PPP-RTK、网络RTK和全球PPP校正服务，以实现可靠的性能和可扩展性，因而是一种更适应大众 ...

同时，模块还支持Galileo E6 、QZSS L6、BDS B2b 和L-Band 频段，可用于 PPP 技术 ... 是高精度GNSS技术的一次重大飞跃，将满足对超可靠、高精度定位需求 ...

PPP stands for Precise Point Positioning. This technology enables the server to utilize global or regional reference stations to make real-time estimations of satellite orbit errors, clock errors, etc ...

Quectel also provides two external full-band GNSS antennas compatible with the LG580P: the YEGR001W8AH, an active GNSS antenna with multiple mounting options, and the YEGD006U1A, ensuring reliable and ...

Quectel Wireless Solutions, a global leader in IoT and GNSS technology, has announced the launch of the LG680P, a multi-constellation, quad-band GNSS module designed to deliver high-precision ...

The module offers Global Navigation Satellite System (GNSS) support for 1,040 tracking ... the module will also support Precise Point Positioning (PPP), leveraging Galileo High Accuracy Service ...

Quectel unveils LG580P GNSS, RTK, multi-constellation ... From Q2 2025, the module will also support Precise Point Positioning (PPP), leveraging Galileo High Accuracy Service (HAS) on the E6 ...

The government has collected Rs 1.44 lakh crore as toll tax at fee plazas presently operational under Public Private Partnerships (PPP) model on National Highways since December 2000, Parliament was ...