Image: GPS World

About Dong L. Wu, Ph.D.

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Dong L. Wu, Ph.D. is the Project Scientist of NASA’s Total and Spectral Solar Irradiance Sensor missions and the Subject Matter Expert for GNSS-RO at Goddard Space Flight Center.

Posts by Dong L. Wu, Ph.D.

Innovation: Recent GPS jamming in regions of geopolitical conflict Posted on 24 May 2024 in the Defense & Featured Stories & From the Magazine & Innovation & Latest News categories.

GPS applications are vulnerable to signal interference, spoofing and degraded or denied services. Both intentional — jamming — and unintentional signal interference can cause inaccurate PNT and poor navigation performance. Read more»

Research Report: A Black Hole in Earth science Posted on 13 Mar 2024 in the Featured Stories & From the Magazine & GNSS & Latest News categories.

GNSS are facing a hard reality due to increasing regional conflicts in recent years. As a dual-use technology, GNSS for civil, commercial and scientific applications is vulnerable to both denied/degraded service and flex power operation from GNSS satellites and to jamming from the ground. Read more»