Jayanta Kumar Ray

Title: Jayanta Kumar Ray: Innovator in Satellite Signal Processing

Introduction

Jayanta Kumar Ray is a notable inventor based in Bengaluru, India. He has made significant contributions to the field of satellite signal processing, holding two patents that showcase his innovative approach to overcoming challenges in this area.

Latest Patents

One of his latest patents is titled "Asymmetry technique for multipath mitigation in pseudorandom noise ranging receiver." This invention focuses on a method for estimating and compensating for multipath errors in a pseudorandom noise ranging receiver. The method utilizes the asymmetry of the correlation function and relates it proportionately to the magnitude of multipath error. By generating local pseudorandom noise sequences at different programmed non-uniform phases, the invention results in non-uniformly spaced correlators. The correlation values are determined at non-uniformly distributed points on a correlation function, and curve fitting is employed to identify the code phase at which the correlation function peaks. A proportionality constant is applied to measure the asymmetry of the correlation function, allowing for the determination of multipath error in the pseudorandom noise signal. Additionally, a filter is used to detect and eliminate outliers.

Another significant patent by Jayanta Kumar Ray is "Weak signal acquisition." This invention presents a method for acquiring a weak signal from a satellite while dealing with a strong interfering signal from another satellite. The method involves identifying the auto-correlation peak due to the weak satellite signal amidst the cross-correlation peaks from the strong satellite signal. The invention outlines two techniques for this acquisition: the millisecond boundary correlation histogram method and the frequency response correlation histogram method. Both techniques effectively distinguish between the correlation characteristics for auto-correlation and cross-correlation, enhancing the ability to acquire weak satellite signals in challenging environments.

Career Highlights

Jayanta Kumar Ray is currently employed at Accord Software & Systems Pvt. Ltd., where he continues to innovate and contribute to advancements in satellite technology. His work has positioned him as a key figure in the field, particularly in the development of methods that improve signal processing capabilities.

Collaborations

He collaborates with talented individuals such as Rakesh Ammunje Nayak and Nagaraj Shivaramaiah Channarayapatna, who contribute to the innovative environment at Accord Software & Systems Pvt. Ltd.

Conclusion

Jayanta Kumar Ray's contributions to satellite signal processing through