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QRI™ (Quantum Resonance Interferometry™)

Accurate signal detection from sensors requires separating signals of interest from background clutter or noise. The traditional approach, passive (linear) signal-processing, involves estimating the background noise level and then treating signals above that noise level as signals of interest. But this method often fails to detect weak signals that are hidden within noisy environments. Active (nonlinear) signal-processing techniques, which involve injecting noise into the sensor data, significantly enhance the signal-to-noise ratios of weak signals. Used primarily for medical imaging, defense, and sonar applications, active signal processing until now has usually been prohibitively expensive for enhancing sensor performance.

Awarded more than a dozen patents, two of which have no prior art, ViaLogy's Quantum Resonance Interferometry (QRI™) is a breakthrough technology that uses innovative software algorithms for active signal processing. Operating on a variety of digital computing platforms, QRI™ technology enhances signal-to-noise-ratios by rapidly determining whether a signal is present in the noisy data. It encodes the noise characteristics of the sensor and uses the counter-intuitive approach of measuring the disturbance to the noise to detect and characterize the presence of the signal of interest. Compared to passive signal-processing techniques, QRI™ is 10 to 100 times more effective at detecting signals in noisy environments and can reliably detect and discriminate signal events that are up to 1,000 times less intense than the surrounding background noise. This extremely high sensitivity minimizes false alarms and event dropouts, making the technique highly specific and reproducible. QRI™ is incorporated throughout the ViaLogy product line.

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