David Koilpillai

Title: David Koilpillai: Innovator in Doppler Spread Estimation

Introduction

David Koilpillai is a notable inventor based in Apex, NC (US). He has made significant contributions to the field of signal processing, particularly with his innovative patent related to Doppler spread estimation systems. His work is essential in improving the reliability of communication systems that experience fading over time.

Latest Patents

David holds a patent for a Doppler spread estimation system. This invention involves a receiving apparatus that includes a receiver capable of receiving signals over a transmission channel that varies over time due to fading. The receiver converts these signals into digital samples for processing. A stationarizer, which is operatively associated with the receiver, stationarizes the digital samples. An estimator is then used to estimate the spectral density of the stationarized digital samples. Finally, a correlator is coupled to the estimator to correlate the spectral density estimates with functions corresponding to hypotheses of multiple Doppler spread values, allowing for the selection of one value as an estimate of the actual Doppler spread.

Career Highlights

David Koilpillai is currently employed at Ericsson GmbH, where he continues to work on advancements in communication technologies. His expertise in signal processing has positioned him as a valuable asset to the company and the industry at large.

Collaborations

David has collaborated with notable colleagues such as Leonid Krasny and Sandeep Chennakeshu. Their combined efforts contribute to the innovative environment at Ericsson GmbH.

Conclusion

David Koilpillai's contributions to Doppler spread estimation systems highlight his role as an influential inventor in the field of signal processing. His work not only enhances communication technologies but also sets a foundation for future innovations.