Company Filing History:
Years Active: 1999-2000
Title: The Innovations of Sung-Leung Chew
Introduction
Sung-Leung Chew is a notable inventor based in Jamaica, NY (US), recognized for his contributions to navigation technology. With a total of 2 patents, Chew has made significant strides in developing systems that enhance vehicle navigation without relying on external aids.
Latest Patents
One of Chew's latest inventions is the Passive Navigation System (PNS). This innovative system provides continuous updates on a vehicle's position, velocity, and attitude without the need for radiating or external navigation aids. The PNS utilizes gravity sensors, gravimetric maps, vertical position, and velocity measurements to accurately compute navigation information. By optimally processing sensor and map data through real-time filtering, the system determines the best position, velocity, and attitude of the vehicle. The integration of measured gravity gradients and vehicle velocity over time yields north, east, and down gravity vector components, which are combined with corresponding components from a vertical deflection map using a complementary filter. The system's advanced features include comparisons of gravity components and the use of a Kalman filter to correct for vertical deflections and gravity anomalies, ultimately improving navigation accuracy.
Career Highlights
Throughout his career, Chew has worked with prominent organizations such as Lockheed Corporation and Lockheed Martin Corporation. His experience in these companies has contributed to his expertise in navigation systems and technology development.
Collaborations
Chew has collaborated with notable colleagues, including Joseph N Dmytrasz and Joseph Gatta, further enhancing his work in the field of navigation technology.
Conclusion
Sung-Leung Chew's innovative contributions to navigation systems exemplify the impact of his work on vehicle technology. His inventions continue to pave the way for advancements in passive navigation solutions.