Company Filing History:
Years Active: 2004-2013
Title: Innovations of Dale F Dubbert
Introduction
Dale F Dubbert is a notable inventor based in Cedar Crest, NM (US), recognized for his contributions to radar technology. With a total of five patents to his name, Dubbert has made significant advancements in the field, particularly in radar echo processing and waveform synthesis.
Latest Patents
One of Dubbert's latest patents is titled "Radar echo processing with partitioned de-ramp." This innovation enhances the spurious-free dynamic range of wideband radar systems by distributing de-ramp processing across both analog and digital domains. The method involves applying a chirp rate offset between the received waveform and the reference waveform used for downconversion to the intermediate frequency (IF) range. This results in a residual chirp in the IF signal before digitization, which is subsequently removed through digital signal processing.
Another significant patent is "Quadrature mixture LO suppression via DSW DAC noise dither." This invention utilizes a Quadrature Error Corrected Digital Waveform Synthesizer (QECDWS) that incorporates frequency-dependent phase error corrections. This pre-distortion compensates for the frequency-dependent phase nonlinearity of RF and microwave subsystems. The QECDWS can also apply frequency-dependent correction vectors to the quadrature amplitude and phase of the synthesized output, effectively nullifying unwanted spectral images. The technique addresses local oscillator leakage by applying precision DC offsets over the chirped pulse using a pseudo-random noise dither.
Career Highlights
Dale F Dubbert is currently employed at Sandia Corporation, where he continues to innovate in radar technology. His work has been instrumental in developing high dynamic range radar systems, such as Synthetic Aperture Radar (SAR).
Collaborations
Throughout his career, Dubbert has collaborated with notable colleagues, including Bertice L Tise and Peter A Dudley. These partnerships have contributed to the advancement of radar technologies and the successful implementation of his patents.
Conclusion
Dale F Dubbert's contributions to radar technology through his innovative patents have significantly impacted the field. His work at Sandia Corporation and collaborations with esteemed colleagues further highlight his dedication to advancing radar systems.