David H Johnson

Title: Innovations of David H Johnson

Introduction

David H Johnson is an accomplished inventor based in Raleigh, NC (US). He has made significant contributions to the field of navigation technology, particularly in environments where GPS signals are unavailable. With a total of three patents to his name, Johnson's work is at the forefront of innovative solutions for geolocation challenges.

Latest Patents

One of Johnson's latest patents focuses on GPS-denied geolocation. This invention presents systems and techniques for navigation in environments where GPS signals cannot be relied upon. Instead of depending on known locations, the operator can measure distance, inclination, and azimuth to arbitrary points on the visual horizon or sub-horizon. These observations are then compared to precomputed distances and inclinations for corresponding azimuths based on known surface terrain data. The closest grid point to the observer's location can be refined using a model of the surrounding environment, allowing for quick and accurate determination of the operator's position.

Career Highlights

David H Johnson is currently employed at Applied Research Associates, Inc. His work at this organization has allowed him to develop and refine his innovative ideas, contributing to advancements in navigation technology. His expertise in the field has made him a valuable asset to his team and the industry.

Collaborations

Johnson collaborates with various professionals in his field, including his coworker Dirk B Warnaar. Their combined efforts contribute to the development of cutting-edge technologies that address complex navigation challenges.

Conclusion

David H Johnson's contributions to GPS-denied geolocation technology highlight his innovative spirit and dedication to solving real-world problems. His work continues to pave the way for advancements in navigation systems, ensuring that users can find their way even in the most challenging environments.