这项技术要替代GPS：信号强100倍，精度10cm

Core Viewpoint - The article discusses the launch of the Pulsar satellite by Xona Space Systems, which aims to provide a more reliable and precise alternative to the existing GPS system, addressing its vulnerabilities to interference and deception [1][2][10]. Group 1: Satellite Technology and Development - The Pulsar satellite is the first of a planned constellation of 258 satellites designed to operate in low Earth orbit, approximately 12,000 miles above the Earth, offering stronger and more precise signals than GPS [1][2]. - Xona's CTO, Tyler Reid, claims that the signals from their satellites will be about 100 times stronger than GPS signals, allowing for better penetration through buildings and reduced interference coverage [1][2]. - The satellite system aims to achieve positioning accuracy of 3 inches (10 centimeters) or better, significantly improving navigation reliability in challenging environments [3][5][6]. Group 2: GPS Vulnerabilities and Market Need - The GPS system, operational since 1993, is critical for various applications but is susceptible to interference from various sources, including space weather and low-cost jammers [2][8]. - The ongoing conflict in Ukraine has highlighted the vulnerabilities of GPS, as interference has rendered precision-guided munitions ineffective, prompting a search for reliable alternatives [8][10]. - The proliferation of inexpensive jamming devices has raised concerns about GPS reliability, affecting commercial flights and other critical operations [8][10]. Group 3: Competitive Landscape and Future Plans - Xona is not the only company exploring alternatives to GPS; other firms like Anello Photonics and Advanced Navigation are developing ground-based solutions using inertial navigation systems [10][11]. - Xona plans to launch additional satellites in the coming years, with a goal to deploy most of its constellation by 2030, enhancing the resilience of critical infrastructure reliant on GPS [11][12]. - The company aims to design signals compatible with existing GPS technology, facilitating integration for GPS receiver manufacturers [11].