V Gregers Hansen

Title: V Gregers Hansen: Innovator in Radar Technology

Introduction

V Gregers Hansen is a notable inventor based in Framingham, MA (US), recognized for his contributions to radar technology. He holds 2 patents that showcase his innovative approach to enhancing radar systems. His work has significantly impacted the field, particularly in improving detection methods and signal processing.

Latest Patents

Hansen's latest patents include a groundbreaking invention titled "Log magnitude pulse interference detection for a radar system." This patent describes a radar receiver equipped with a feed-forward control circuit that adjusts the automatic gain control (AGC) setting in 6 dB increments for each range cell. The system utilizes the magnitude of the larger of the in-phase (I) or quadrature (Q) components of the video signals from an A/D converter. It also considers the status of present and previous sweep A/D limit conditions, ensuring that the radar return signal remains within the dynamic range of the A/D converter. Additionally, Hansen developed a pulse interference detection and signal replacement apparatus that employs an 8-bit log magnitude representation to detect interference and replace affected range cell samples with interpolated values.

Another significant patent is the "Detector with variance sensitivity," which is designed for radar or sonar systems. This invention allows for target detection with a constant false alarm rate (CFAR). The circuit adjusts the input to a comparator that compares received echo signals against a threshold value. By subtracting the mean value of background noise from the signal and dividing the result by the square root of the variance of background noise, the system effectively compensates for clutter and enhances target detection accuracy.

Career Highlights

Hansen is currently employed at Raytheon Company, where he continues to innovate in the field of radar technology. His work at Raytheon has allowed him to apply his inventive skills to real-world applications, contributing to advancements in defense and aerospace technologies.

Collaborations

Throughout his career, Hansen has collaborated with esteemed colleagues, including Robert H Cantwell and William K Marksteiner. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

V Gregers Hansen is a distinguished inventor whose work in radar technology has led to significant advancements in detection methods and signal processing. His patents reflect a commitment to innovation and excellence in the field. Hansen's