Clifford W Kelley

Title: The Innovations of Clifford W. Kelley

Introduction

Clifford W. Kelley is a notable inventor based in Rancho Palos Verdes, California. He holds a total of eight patents, showcasing his significant contributions to the fields of signal processing and satellite navigation. His work has advanced the technology used in various applications, particularly in improving the reliability of navigation systems.

Latest Patents

One of Kelley's latest patents is titled "Genetic method for the tracking of time varying signals." This invention presents a method for coherent tracking of time-varying signals using evolutionary computing. It incorporates global and local optimization techniques to enhance performance under challenging conditions, such as poor signal reception and multipath errors. This method aims to provide more accurate estimates of carrier phase, carrier frequency, and modulation phase at low signal levels, avoiding the limitations of traditional phase lock tracking loops (PLL) and delay lock tracking loops (DLL).

Another significant patent is "Satellite navigation using long-term navigation information." This invention offers an improved approach to satellite-based navigation systems, such as GPS. The method involves receiving a first set of tracking information to determine a nominal orbital path for the navigation satellite. It computes ephemeris data corresponding to this path and uploads it to the satellite. The system then transmits long-term navigation information to a communication system for broadcast to multiple navigation devices. By predicting the orbital path using a second set of tracking information, the system can adjust the actual orbital path of the satellite to align with the nominal path.

Career Highlights

Throughout his career, Kelley has worked with prominent companies, including The Boeing Company. His experience in the aerospace and technology sectors has allowed him to develop innovative solutions that address complex challenges in navigation and signal processing.

Collaborations

Kelley has collaborated with notable individuals in his field, including Raymond S. DiEsposti and Jonathan A. Tekawy. These partnerships have contributed to the advancement of his inventions and the successful implementation of his ideas.

Conclusion

Clifford W. Kelley is a distinguished inventor whose work has significantly impacted the fields of signal processing and satellite navigation. His innovative patents reflect his dedication to improving technology and enhancing the reliability of navigation systems.