Publications and Patents

List of Publications:

Journal Papers

[1] I. F. Progri, W. R. Michalson and J. Wang, “Indoor Geolocation System With MC-CDMA Pseudolites: Signal Structure and Theoretical Performance,” in review, IEE Proc. Radar, Sonar and Navigation.

[2] I. F. Progri, W. R. Michalson and J. Wang, “Indoor Geolocation Using FCDMA Pseudolite: Signal Structure and Performance Analysis”, in review, NAVIGATION J. Inst. Nav.

[3] I. F. Progri, M. C. Bromberg and W. R. Michalson, “Maximum-Likelihood GPS Parameter Estimation”, NAVIGATION J. Inst. Nav., vol. 52, no. 4, pp. 229-238, Winter, 2005-2006.

[4] I.F. Progri, W.R. Michalson, and D. Cyganski, "An OFDM/FDMA indoor geolocation system," NAVIGATION J. Inst. Nav., vol. 51, no. 2, pp. 133-142, Summer, 2004.

[5] I.F. Progri, G. Bogdanov, V.C. Ramanna, and W.R. Michalson, "An investigation of a GPS adaptive temporal selective attenuator," NAVIGATION J. Inst. Nav., Vol. 49 No. 3, pp. 137-147, 2002.

[6] G. Bogdanov, W. R. Michalson, and R. Ludwig, “A new apparatus for non-destructive evaluation of green-state powder metal compacts using the electrical resistivity method,” Measurement Science and Technology, IOP Publishing, vol. 11, pp. 157-166, January 2000.

[7] B. Findlen, E. Reuter, R. Campbell, and W. R. Michalson, “Effects of time domain response on the sonic characteristics of microphones,” Journal of the Acoustical Society of America, vol. 104, no. 3, pt. 2 pp. 1764, September 1998.

[8] J. Sedgwick, W. R. Michalson, and R. Ludwig, “Design of a Digital Gauss Meter for Precision Magnetic Field Measurements,” IEEE Transactions on Instrumentation and Measurement, vol. 47, no. 4, pp. 972-977, August 1998.

[9] J. Stander, J Plunkett, W. Michalson, J. McNeill, and R. Ludwig, “A Novel Multi-Probe Resistivity Approach to Inspect Green-State Powdered Metallurgy Compacts,” Journal of Non-Destructive Evaluation, vol. 16, no. 4, pp. 205-214, 1997.

[10] Woltereck, R. Ludwig, and W. Michalson, "A Quantitative Analysis of the Separation of Aluminum Cans Out of a Waste Stream Based on Eddy Current Induced Levitation," IEEE Transactions on Magnetics, vol. 33, no. 1, pp. 772-781, January 1997.

[11] W. R. Michalson, “Auralization on a Laptop PC,” abstract appears in The Journal of the Acoustical Society of America , vol. 100 No. 4, Pt 2, pp. 2608, October 1996.

[12] R. H. Campbell, S. K. Martin, I. Schneider, and W. R. Michalson, “Analysis of Mosquito Wingbeat Sound,” The Journal of the Acoustical Society of America vol. 100 No. 4, Pt 2, pp. 2710, October 1996.

[13] W. R. Michalson, "Ensuring GPS Navigation Integrity using Receiver Autonomous Integrity Monitoring," IEEE Aerospace and Electronic Systems Magazine. vol. 10, no. 10, pp. 31-34, October 1995.

[14] S. Clayton, R. J. Duckworth, W. Michalson, A. Wilson, "Determining Update Latency Bounds in Galactica Net," Concurrency: Practice, and Experience, vol. 7, no. 7, pp. 595-611, October 1994.

Conference Papers

[1] D. Cyganksi, R. J. Duckworth, S. Makarov, W. R. Michalson, et.al., “WPI Precision Personnel Locator System,” in review Proc. Institute of Navigation National Technical Meeting (NTM 2007), Catamaran Resort Hotel, San Diego, CA, January 22-24, 2007.

[2] I. F. Progri, J. Maynard, W.R. Michalson, J. Wang, “The Performance and Simulation of a C-CDMA Pseudolite Indoor Geolocation System,” Proc. Institute of Navigation GNSS 2006, Fort Worth, TX, September 26-29, 2006.

[3] I. F. Progri, W. Ortiz, W.R. Michalson, J. Wang, “The Performance and Simulation of an OFDMA Pseudolite Indoor Geolocation System,” Proc. Institute of Navigation GNSS 2006, Fort Worth, TX, September 26-29, 2006.

[4] J.W. Coyne, R. J. Duckworth, W. R. Michalson and H.K. Parikh, “2-D Radio Navigation System Using MC-UWB,” Proc. NAV 2005 – Pushing the boundaries, Royal Institute of Navigation, London, Nov 1-3, 2005.

[5] H.K. Parikh, W.R. Michalson and R.J. Duckworth,, “MC-UWB Precise Positioning System –Field Tests, Results and Effect of Multipath,” Proc. Institute of Navigation GNSS 2005, Long Beach Convention Center, Long Beach, CA, September, 2005.

[6] R.J. Duckworth, H.K. Parikh and W.R. Michalson, “Radio Design and Performance Analysis of a Multi-carrier Ultrawideband (MC-UWB) Positioning System,” Proc. Institute of Navigation National Technical Meeting (NTM 2005), Catamaran Resort Hotel, San Diego, CA, January 24-26, 2005.

[7] H.K. Parikh and W.R. Michalson, “Performance Evaluation of the Receiver RF Front-End of a Precision Positioning System,” Proc. Institute of Navigation GNSS 2004, Long Beach Convention Center, Long Beach, CA, September 21-24, 2004.

[8] W.R. Michalson and H. Ahlehagh, “A 3D Location Discovery Algorithm for Ad Hoc Networks,” ICWN-04, 2004 International Conference on Wireless Networks, Las Vegas, pp. 567-572, Jun 21-24, 2004.

[9] I.F. Progri, W.R. Michalson and M.C. Bromberg, “Accurate Synchronization Using a Full Duplex DSSS Channel,” Proc. IEEE PLANS 2004, Monterrey, CA, pp. 220-226, Apr 26-29, 2004.

[10] I.F. Progri and W.R. Michalson, “An Investigation of a DSSS-OFDM-CDMA-FDMA Indoor Geolocation SYSTEM,” Proc. IEEE PLANS 2004, 2004, Monterrey, CA, pp. 662-670, Apr 26-29, 2004.

[11] D. Cyganski, J.A. Orr, W.R. Michalson, “Performance of a Precision Indoor Positioning System Using a Multi-Carrier Approach,” Proc. Institute of Navigation 2004 National Technical Meeting, San Diego, CA, pp. 175-180, Jan 26-28, 2004.

[12] I.F. Progri, W.R. Michalson and M.C. Bromberg, “An Enhanced Acquisition Process of a Maximum Likelihood GPS Receiver,” Proc. Institute of Navigation 2004 National Technical Meeting, San Diego, CA, pp. 390-398, Jan 26-28, 2004.

[13] I.F. Progri, M.C. Bromberg and W.R. Michalson, “The Acquisition Process of a Maximum Likelihood GPS Receiver,” Proc. Institute of Navigation GPS 2003, Portland, OR, pp. 2533-2542, Sep 9-12, 2003.

[14] W.R. Michalson, H. Ahlehagh and I.F. Progri, “Dynamic Node Location in an Ad Hoc Indoor Communications and Positioning Network,” Proc. Institute of Navigation GPS 2003, Portland, OR, pp. 1185-1191, Sep 9-12, 2003.

[15] J. DeChiaro, C. Strus and W.R. Michalson, “A Personal Navigation Test Platform Based on Low-Cost Inertial Components,” Proc. Institute of Navigation GPS 2003, Portland, OR, pp. 2869-2877, Sep 9-12, 2003.

[16] H. AhleHagh, W. R. Michalson and D. Finkel, “Statistical Characteristics of Wireless Network Traffic and its Impact on Ad Hoc Network Performance,” Proc. Applied Telecommunication Symposium2003 Advancec Simulation Technologies Conference, Orlando, FL, pp. 66-71, Mar 30 – Apr 3, 2003.

[17] I.F. Progri, W.R. Michalson and D. Cyganski, “An OFDM/FDMA Indoor Geolocation System,” Proc. ION National Technical Meeting, Anaheim, CA, pp. 272-281, Jan 22-24, 2003.

[18] I.F. Progri and W.R. Michalson, "Synchronization of Measurements of Power System Harmonics By Means of the Global Positioning System," Proc. ION Annual Meeting, Albuquerque, NM, pp. 372-382, Jun 24-26, 2002.

[19] I.F. Progri, W.R. Michalson, and M.C. Bromberg, "A recursive solution to the generalized eigenvalue problem," Proc. ION Annual Meeting, Albuquerque, NM, pp. 154-162, Jun 24-26, 2002.

[20] I.F. Progri and W.R. Michalson, “A Combined GPS Satellite/Pseudolite System for Category III Precision Landing,” Proc. IEEE PLANS, pp. 212-218, Apr 15-17, 2002.

[21] I.F. Progri, W.R. Michalson and M. Bromberg, “A Comparison Between the Recursive Cholesky and MGSO Algorithms,” Proc. Institute of Navigation 2002 National Technical Meeting, San Diego, CA, pp. 655-665, Jan 28-30, 2002.

[22] I.F. Progri, W.R. Michalson and M. Bromberg, “A Study of a Blind Adaptive Algorithm in the Time and Frequency Domain,” Proc. Institute of Navigation 2002 National Technical Meeting, San Diego, CA, pp. 439-447, Jan 28-30, 2002.

[23] L. Polizzotto and W. R. Michalson, “The Technical, Process, and Business Considerations for Engineering Design,” Frontiers in Education 2001, Reno, NV, pp. F1G-19-F1G-24, Oct 10-13, 2001.

[24] I.F. Progri and W.R. Michalson, “An Improved Adaptive Spatial Temporal Selective Attenuator,” Proc. Institute of Navigation GPS 2001, Salt Lake City, UT, pp. 932-938, Sep 11-14, 2001.

[25] I.F. Progri and W.R. Michalson, “An Alternative Approach to Multipath and the Near-Far Problem for Indoor Geolocation Systems,” Proc. Institute of Navigation GPS 2001, Salt Lake City, UT, pp. 1434-143, Sep 11-14, 2001.

[26] W.R. Michalson and I.F. Progri, “An Investigation of the Adaptive Spatial Temporal Selective Attenuator,” Institute of Navigation GPS 2001, Salt Lake City, UT, pp 1985-1996, Sep 11-14, 2001.

[27] I.F. Progri and W.R. Michalson, “The Impact of Proposed Pseudolite’s Signal Structure on the Receiver’s Phase and Code Error,” Proc. ION Annual Meeting, Albuquerque, NM, pp. 414-422, Jun 11-13, 2001.

[28] I.F. Progri, J.M. Hill and W.R. Michalson, “An Investigation of the Pseudolite’s Signal Structure for Indoor Positioning,” Proc. ION Annual Meeting, Albuquerque, NM, pp. 453-462, Jun 11-13, 2001.

[29] J. M. Hill and W. R. Michalson, “Real Time Verification of Bit-Cell Alignment for C/A Code Only Receivers,” Proc. ION Annual Meeting, pp. 463-468, Jun 11-13, 2001.

[30] I. Progri , J. M. Hill and W. R. Michalson, “The Impact of the Proposed Pseudolite’s Signal Structure on the Receiver’s Phase and Code Error,” Proc. ION Annual Meeting, pp. 414-422, Jun 11-13, 2001.

[31] I.F. Progri, W.R. Michalson and R. Chassaing “Fast and efficient filter design and implementation on the TMS320C6711 digital signal processor,” Proc. Student Forum ICASSP, Salt Lake City UT, May 2001.

[32] I. Progri and W. R. Michalson, “An Innovative Navigation Algorithm Using a System of Fixed Pseudolites,” Institute of Navigation National Technical Meeting, pp. 619-627, Long Beach, CA, Jan 22-24, 2001.

[33] I. Progri, J.M. Hill and W. R. Michalson, “A Doppler-based navigation algorithm,” Institute of Navigation National Technical Meeting, pp. 482-490, Long Beach, CA, Jan 22-24, 2001.

[34] I. Progri , J. M. Hill and W. R. Michalson, “Assessing the Accuracy of Navigation Algorithms Using a Combined System of GPS Satellites and Pseudolites,” Institute of Navigation National Technical Meeting, Long Beach, CA, pp 473-481, Jan 22-24, 2001.

[35] J. M. Hill and W. R. Michalson, “Design of a Stable Discrete Time Costas Loop,” Institute of Navigation National Technical Meeting, pp. 228-234, Jan 22-24, 2001.

[36] J. M. Hill and W. R. Michalson, “Techniques for Reducing the Near-Far Problem in Indoor Geolocation Systems,” Institute of Navigation National Technical Meeting, pp. 860-865, Jan 22-24, 2001.

[37] I. Progri and W. R. Michalson, “Adaptive Spatial and Temporal Selective Attenuator in the Presence of Mutual Coupling and Channel Errors,” Institute of Navigation GPS 2000, Salt Lake City, UT, pp. 462-470, Sep 19-22, 2000.

[38] W. R. Michalson, J. A. Orr and D. Cyganski, “A System for Tracking and Locating Emergency Personnel Inside Buildings,” Institute of Navigation GPS 2000, Salt Lake City, UT, pp. 560-568, Sep 19-22, 2000.

[39] W. R. Michalson and I. Progri, “Assessing the Accuracy of Underground Positioning Using Pseudolites,” Institute of Navigation GPS 2000, Salt Lake City, UT, pp. 1007-1015, Sep 19-22, 2000.

[40] I. Progri and W. R. Michalson, “Performance Evaluation of Category III Precision Landing Using Airport Pseudolites,” IEEE Conf. Position, Location, and Navigations Systems (PLANS), Mar, pp. 262-269, 2000.

[41] R. Ludwig, G. Bogdanov, W. Michalson, and D. Apelian, “Instrumentation Development for Crack Detection of Surface and Subsurface Defects in Green-State P/M Compacts through Multi-Probe Electric Resistivity Testing,” Review of Progress in NDE, Snowbird Ski and Summer Resort, Snowbird UT, Jul 19-24, 1998.

[42] W. R. Michalson, W. Cidela, et. al., “A GPS-Based Hazard Detection and Warning System,” in review, " ION GPS‑96, 9th International Meeting of the Satellite Division of the Institute of Navigation, pp. 167-175, Kansas City, MO, Sep 17-20, 1996.

[43] W. R. Michalson and R. L. Labonte, "Capstone Design in the ECE Curriculum: Assessing the Quality of Undergraduate Projects at WPI," American Society of Engineering Educators 1996 Annual Conference (CD-ROM), session 1232 Washington, D.C., Jun, 1996.

[44] W. R. Michalson, J. Single, M. Spadazzi, and M. Wehr, “A Real-Time GPS System for Monitoring Forestry Operations,” Sixth Biennial Forest Service Remote Sensing Applications Conference, pp. 264-269, Denver, CO, May 1-3, 1996.

[45] W. R. Michalson and D. Nicoletti, “Computers in Introductory and Upper-Level ECE Courses,” American Society of Engineering Educators 1995 Annual Conference, Anaheim, CA, Jun 25-28, 1995, pp. 2795-99.

[46] W. R. Michalson, D. B. Cox, and H. Hua, "GPS Carrier-Phase RAIM," ION GPS‑95, 8th International Meeting of the Satellite Division of the Institute of Navigation, Palm Springs, CA., pp. 1975-1984, Sep 12-15, 1995.

[47] J. Bernick and W. R. Michalson, "UDSRAIM: An Innovative Approach to Increasing RAIM Availability," ION GPS‑95, 8th International Meeting of the Satellite Division of the Institute of Navigation, Sep 12-15, Palm Springs, CA., pp. 1965-1973, 1995.

[48] C. Easton and W. R. Michalson, "Effects of Worst Case Geometries on RAIM Testing," ION GPS‑95, 8th International Meeting of the Satellite Division of the Institute of Navigation, Sep 12-15, Palm Springs, CA., pp. 2015-2022, 1995.

[49] D. B. Cox and W. R. Michalson, "Use of Uncorrected GPS Carrier Phase Measurements for Incremental RAIM with WAAS," ION 51st Annual Meeting, Jun 5-7, Colorado Springs, CO., pp. 515-520, 1995.

[50] W. Michalson, et. al., "RAIM Availability for Augmented GPS-Based Navigation Systems," ION GPS-94, 7th International Meeting of the Satellite Division of the Institute of Navigation, pp. 587-95, Sep 20-23, 1994.

[51] V. G. Virball, W. Michalson, et. al., "A Fault Detection and Exclusion Algorithm to be Used with the GPS Integrity Channel," Proceedings of the 1994 IEEE Position Location and Navigation Symposium (PLANS-94), pp. 747-54, Las Vegas, Apr 11-15, 1994.

[52] W. Michalson and C. Easton, "Experiences Implementing the Supplemental MOPS Off-Line Test Procedure," ION GPS-93, 6th International Meeting of the Satellite Division of the Institute of Navigation, pp. 519-27, Sep 22-24, 1993.

[53] D. Beatovic, P.L. Levin, A. Meroth, M. Spasojevic, W. R. Michalson, A. Unstundag, "Iterative Matrix Solvers for Large Full Systems," Eighth International Symposium on High Voltage Engineering, Aug 23-27, Yokohama, Japan, 1993.

[54] E. Schnieder, W. R. Michalson, "A Comparison of Large Guided-Wave Interconnection Networks for Optical Computation Systems," SPIE Conf. on Optoelectronic Interconnects OE/LASE 93.

[55] E. Schnieder, W. R. Michalson, "Integrated Guided-Wave Crossbar Interconnection of SEED Arrays," SPIE Conf. on Optoelectronic Interconnects OE/LASE 93.

[56] W. R. Michalson, "The Application of Neural Networks to Nonlinear Filtering," Proc. SPIE Cooperative Intelligent Robotics in Space III, pp. 219-228, Boston, 1992.

[57] W. R. Michalson and C. S. Tocci, "Exploiting Programmable Devices in High-Performance System Design: Current Trends," Proc. Electro 92, vol 2, pp. 104-109, May 12-14, 1992.

[58] S. Clayton, R. J. Duckworth, W. Michalson, A. Wilson, "Determining Update Latency Bounds in Galactica Net," Proc. IEEE Conf. on High-Performance Distributed Computing, pp. 104-111, Sep 9-11, 1992.

[59] R. J. Duckworth, J. E. Lavallee, W. R. Michalson, L. Becker, and P. Green, "The Development of Intelligent Real-Time Systems Using Ada," 12th IEEE Symposium on Real-Time Systems, Dec 3-6, 1991.

[60] W. Jessop, W. Michalson, and R. Some, "Fault Injection for Verifying Fault Tolerant System Behavior," Workshop on Experimental Evaluation, El Segundo, CA, May 1-3, 1990.

[61] W. R. Michalson and P. Heldt, "A Hybrid Architecture for the ART 2 Neural Model," Proc. International Joint Conference on Neural Networks, pp. 167-70, Washington D.C., Jan 15-19, 1990.

[62] W. R. Michalson, "A Review of the Current State of Logic Synthesis," 2nd Annual IEEE ASIC Seminar and Exhibit, Rochester, NY, Sep 25- 28, 1989.

[63] P. E. Green and W. R. Michalson, "Real-Time Evidential Reasoning and Network Based Processing," Proc. IEEE 1st International Conference on Neural Networks, pp. 359-365, San Diego, CA, Jun 21-24, 1987.

[64] P. E. Green, R. J. Juels, and W. R. Michalson, "Real Time Artificial Intelligence Architecture," Proc. Workshop on Future Directions in Computer Architecture and Software, pp. 328-330, Charleston, SC, May 5-7, 1986.

Book Chapters

[1] W. Michalson and E. Schnieder, "An Approach for Implementing a Reconfigurable Optical Interconnection Network for Massively Parallel Computers," in Optical Interconnection - Foundations and Approaches, C. Tocci and H. J. Caulfield Eds., Artech House, proposed release January 1994.

Patents

Multi-channel electrophysiologic signal data acquisition system on an integrated circuit. US Patent Application US20060173364, submitted 3 August 2006.

A physiologic data acquisition system includes an analog input, a sigma-delta front end signal conditioning circuit adapted to subtract out DC and low frequency interfering signals from and amplify the analog input before analog to digital conversion. The system can be programmed to acquire a selected physiologic signal, e.g., a physiologic signal characteristic of or originating from a particular biological tissue. The physiologic data acquisition system may include a network interface modulating a plurality of subcarriers with respective portions of an acquired physiologic signal. A receiver coupled to the network interface can receive physiologic data from, and send control signals and provide power to the physiologic data acquisition system over a single pair of wires. The network interface can modulate an RF carrier with the plurality of modulated subcarriers and transmit the resulting signal to the receiver across a wireless network. An integrated circuit may include the physiologic data acquisition system. Also included are methods for acquiring physiologic data comprising the step of selectively controlling an acquisition circuit to acquire the physiologic signal.

Methods and Apparatus for Personnel Location Based on the Transmission and Receipt of Multi-Carrier Ultrawide Band Signals. Precision, local positioning of a low power transmitter in complex, interference susceptible (urban) environments is enabled by an innovative signal processing design. Provisional, Sep 2004.

Methods and Apparatus for Stealthy Communication Using Multi-Carrier Ultrawide Band Signals. Low power, multi-carrier ultrawide band system design provides low detectability communications design option. Provisional, Sep 2004.

Methods and Apparatus for OFDM Communications Employing Arbitrary Analog Modulation. General modulation and receiver designs are feasible for communicator and locator systems based on multi-carrier ultrawide band signals. Provisional, Sep 2004.

Data Model And User Interface For Database Applications, Docket Number 1021.2010-000, submitted 18 November, 2003. The present invention overcomes the problems of the prior art. In particular, the present invention data model does not require any additional indexing method such as the balanced tree in the prior art. The present invention provides a transparent mechanism for maintaining history of the data. The users of applications built with the present invention have the ability to change the underlying data scheme. Thus, the present invention provides certain advantages in database application building for developers, contractors and vendors as well as end users. The present invention lowers development life cycle and provides quick turnaround on changes to the database schema.

A Reconfigurable Indoor Geolocation System, US Patent Number 7,079,025, Issued 7/18/06. A portable reconfigurable geolocation system is provided. The system includes a portable user node and one or more portable pseudolite nodes in communication one another and with the user node. Each of the user nodes and pseudolite nodes includes a transmitter that generates a signal on one or more carrier frequencies. Each signal is modulated with digital signals necessary to establish distances between the nodes and to convey data between the nodes. Each node also includes a receiver for receiving and demodulating the signals transmitted between the nodes, and a processor for receiving the demodulated signals, extracting data values and derived values from the demodulated signals and determining a three-dimensional position of each node in the system.

Adaptive Spatial Temporal Selective Attenuator with Restored Phase, US Patent Application US20040021515A1, submitted 11 June 2003. An adaptive attenuator is provided, the adaptive attenuator including at least two sensor ports. Each of the sensor ports receives an input signal that includes data on a first channel and a reference sequence on a second channel. One or more delay ports is coupled to each sensor port for receiving the input signal, and a computational port is coupled to the sensor ports and the delay ports. The computational port receives the input signal and the output of the delay ports and performs one or more computations to produce a processed signal which is substantially free of interference. A phase restorer receives the processed signal and the reference sequence and restores phase to the processed signal in accordance with the reference sequence.

Auto-Calibrating Surround System, US Patent Application US20010038702A1, submitted 20 April 2001. A multi-channel surround sound system and method is described that allows automatic and independent calibration and adjustment of the frequency, amplitude and time response of each channel of the surround sound system. The disclosed auto-calibrating surround sound (ACSS) system includes a processor that generates a test signal represented by a temporal maximum length sequence (MLS) and supplies the test signal as part of an electric input signal to a loudspeaker. A microphone coupled to the processor receives the signal in a listening environment. The processor correlates the received sound signal with the test signal in the time domain and determines from the correlated signals a whitened response of the audio channel in the listening environment.

Hand-held GPS-mapping device, US. Patent Number 5,987,380, Issued 11/16/99. Covers claims associated with the design of a data compression mechanism which allows random access to arbitrary locations in a geo-referenced raster map database.

Hand-held GPS-mapping device, US. Patent Number 5,902,347, Issued 5/11/99. Covers claims associated with connectivity of a portable mapping device with external networks such as the Internet. Also covers the ability of such a device to provide a “situation awareness” type of display.

Maintained by: wrm@ece.wpi.edu
Last modified: 10/24/06