Mr. Chad A. Stelzig Profile

Chad A. Stelzig

Interim CEO at Image Sensing Systems Inc

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Publications (7)

Proceedings Article | 11 May 2007 Paper

Loud target suppression: an innovative approach to reduce excessive sensor collaboration in distributed UGS systems

Chad Stelzig, Grant Lipelt, Sharon Minor

Proceedings Volume 6562, 65620M (2007) https://doi.org/10.1117/12.719277

KEYWORDS: Sensors, Target detection, Detection and tracking algorithms, Acoustics, Unattended ground sensors, Distributed computing, Systems modeling, Scanning probe lithography, Environmental sensing, Night vision

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Proceedings Article | 18 April 2006 Paper

Investigation of target tracking performance for unattended ground sensor networks employing distributed cluster management

Chad Stelzig, Magdi Essawy, Sharon Minor

Proceedings Volume 6242, 62420F (2006) https://doi.org/10.1117/12.666008

KEYWORDS: Sensors, Unattended ground sensors, Detection and tracking algorithms, Monte Carlo methods, Telecommunications, Target detection, Sensor networks, Computer simulations, RF communications, Environmental sensing

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Proceedings Article | 26 May 2005 Paper

Distributed cluster management techniques for unattended ground sensor networks

Magdi Essawy, Chad Stelzig, James Bevington, Sharon Minor

Proceedings Volume 5820, (2005) https://doi.org/10.1117/12.604009

KEYWORDS: Sensors, Sensor networks, Target detection, Sensor fusion, Telecommunications, Unattended ground sensors, Monte Carlo methods, Data fusion, RF communications, Data communications

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Smart Sensor Networks are becoming important target detection and tracking tools. The challenging problems in such networks include the sensor fusion, data management and communication schemes. This work discusses techniques used to distribute sensor management and multi-target tracking responsibilities across an ad hoc, self-healing cluster of sensor nodes. Although miniaturized computing resources possess the ability to host complex tracking and data fusion algorithms, there still exist inherent bandwidth constraints on the RF channel. Therefore, special attention is placed on the reduction of node-to-node communications within the cluster by minimizing unsolicited messaging, and distributing the sensor fusion and tracking tasks onto local portions of the network. Several challenging problems are addressed in this work including track initialization and conflict resolution, track ownership handling, and communication control optimization. Emphasis is also placed on increasing the overall robustness of the sensor cluster through independent decision capabilities on all sensor nodes. Track initiation is performed using collaborative sensing within a neighborhood of sensor nodes, allowing each node to independently determine if initial track ownership should be assumed. This autonomous track initiation prevents the formation of duplicate tracks while eliminating the need for a central “management” node to assign tracking responsibilities. Track update is performed as an ownership node requests sensor reports from neighboring nodes based on track error covariance and the neighboring nodes geo-positional location. Track ownership is periodically recomputed using propagated track states to determine which sensing node provides the desired coverage characteristics. High fidelity multi-target simulation results are presented, indicating the distribution of sensor management and tracking capabilities to not only reduce communication bandwidth consumption, but to also simplify multi-target tracking within the cluster.

Proceedings Article | 9 August 2004 Paper

Multisensor-multitarget sensor management with target preference

Adel El-Fallah, Mike Perloff, B. Ravichandran, Tim Zajic, Chad Stelzig, Ronald Mahler, Raman Mehra

Proceedings Volume 5429, (2004) https://doi.org/10.1117/12.543822

KEYWORDS: Sensors, Detection and tracking algorithms, Digital filtering, Filtering (signal processing), Electronic filtering, Digital signal processing, Target detection, Algorithm development, Algorithms, Target recognition

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Proceedings Article | 31 July 2002 Paper

Multisensor management optimization for multitarget tracking based on Hausdorff distance minimization

Lingji Chen, Adel El-Fallah, Raman Mehra, Ronald Mahler, John Hoffman, Chad Stelzig, Mark Alford

Proceedings Volume 4729, (2002) https://doi.org/10.1117/12.477611

KEYWORDS: Sensors, Detection and tracking algorithms, Target detection, Computer simulations, Sensor performance, Matrices, Software development, Algorithm development, Raman spectroscopy, Analytical research

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Proceedings Article | 31 July 2002 Paper

Scientific performance estimation of robustness and threat

John Hoffman, Eric Sorensen, Chad Stelzig, Ronald Mahler, Adel El-Fallah, Mark Alford

Proceedings Volume 4729, (2002) https://doi.org/10.1117/12.477610

KEYWORDS: Detection and tracking algorithms, Sensors, Data fusion, Radar, Filtering (signal processing), Stochastic processes, Distance measurement, Mathematics, Information theory, Chromium

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Proceedings Article | 16 August 2001 Paper

Scientific performance evaluation for distributed sensor management and adaptive data fusion

Adel El-Fallah, Ravi Ravichandran, Raman Mehra, John Hoffman, Tim Zajic, Chad Stelzig, Ronald Mahler, Mark Alford

Proceedings Volume 4380, (2001) https://doi.org/10.1117/12.436960

KEYWORDS: Sensors, Molybdenum, Data fusion, Detection and tracking algorithms, Silicon, Monte Carlo methods, Solids, Metrology, Switches, Analytical research

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Showing 5 of 7 publications

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