Bookmarks

Recent Publications, Papers, and Patents by the Aerospace Technical Staff

Publications and Papers

(July 2005–October 2005)

J. D. Adams and R. A. Hickman, "ARES: Affordable REsponsive Spacelift," AIAA Space 2005 (Long Beach, CA, Aug. 31, 2005).

P. C. Anderson et al., "On the Relation Between Sub-Auroral Electric Fields, the Ring Current, and the Plasmasphere," The Inner Magnetosphere: Physics and Modeling, ed. by T. I. Pulkkinen, N. A. Tsyganenko, and R. H. W. Friedel (AGU monograph, 2005).

E. J. Beiting and M. L. Garrett, "Spectral Characteristics of Radiated Emission from SPT-100 Hall Thrusters," 2005 International Electric Propulsion Conference (Princeton, NJ, Oct. 31, 2005).

K. P. Bentz, "Computation of the Cross Ambiguity Function Using Perfect Reconstruction Over-Sampled DFT Filter Banks," WSEAS Transactions on Systems, Vol. 4, No. 10, pp. 1733–1740 (Oct. 2005).

D. G. Beshore, "A Highly Automated CMMI-Driven Self-Organizing and Mapped (SOM) Document Library," INCOSE 2005 Symposium (Rochester, NY, July 10, 2005).

J. B. Blake et al., "Global Observations of Energetic Electrons Around the Time of a Substorm on 27 August 2001," Journal of Geophysical Research, Vol. 110, No. A6 (2005).

D. J. Buettner, "A Taxonomy for Physics-Based Synthetic Biometric Models," AutoID 2005 (Buffalo, NY, Oct. 18, 2005).

J. Camparo, "Does the Light Shift Drive Frequency Aging in the Rubidium Atomic Clock?," IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 52, No. 7, pp. 1075–1078 (July 2005).

J. Camparo, "Evidence for a Simple Scaling Law Relating Neutral and Cation Diatomic Bond Energies," Theochem, Vol. 722, No. 1–3, pp. 239–243 (2005).

J. C. Camparo, C. M. Klimcak, S. J. Herbulock, "Frequency Equilibration in the Vapor-Cell Atomic Clock," IEEE Transactions on Instrumentation and Measurement, Vol. 54, No. 5, pp. 1873–1880 (Oct. 2005).

J. C. Chai and A. O. Britting, "Comparison of OLMS Data with Derived EM Responses of Space Launch Systems to Lightning," 2005 IEEE EMC International Symposium (Chicago, Aug. 8, 2005).

J. C. Chai and E. Dressel, "Electromagnetic Cross Coupling Between Ground Support Power Lines and Spacecraft Umbilical Cables," 2005 IEEE EMC International Symposium (Chicago, Aug. 8, 2005).

J. C. Chai and E. Dressel, "OLMS Detection of EM Transients at Space Launch Sites," IEEE EMC International Symposium (Chicago, 2005).

A. B. Christensen et al., "Undulations on the Equatorward Edge of the Diffuse Proton Aurora: TIMED/GUVI Observations," Journal of Geophysical Research, Space Physics, Vol. 110, No. A8 (Aug. 25, 2005).

K. D. Diamant, "Resonant Cavity Hollow Cathode Progress," 2005 International Electric Propulsion Conference (Princeton, NJ, Nov. 2005).

W. L. Dimpfl et al., "Improvements in Modeling Radiant Emission from the Interaction Between Spacecraft Emanations and the Residual Atmosphere in LEO," AMOS Technical Conference (Maui, Sep. 2005).

K. W. Dotson, S. Rubin, and B. H. Sakot, "Mission-Specific Pogo Stability Analysis with Correlated Pump Parameters," Journal of Propulsion and Power, Vol. 21, No. 4, pp. 619–626 (July–Aug. 2005).

S. Eslinger and R. J. Adams, "Reducing Software Acquisition Risk: Best Practices for the Early Acquisition Phases," Space Systems Engineering and Risk Management Symposium (Manhattan Beach, CA, 2005).

R. W. Farley, J. E. Wessel, et al., "Active Raman Sounding of the Earth's Water Vapor Field," Spectrochimica Acta Part A—Molecular and Biomolecular Spectroscopy, Vol. 61, No. 10, pp. 2335–2341 (Aug. 2005).

H. Feil and W. A. Metler, "Mobile Routing Architectures in the Transformational Communication Era," MILCOM 2005 (Atlantic City, NJ, Oct. 17, 2005).

J. F. Fennell et al., "Energetic Electrons as a Field Line Topology Tracer in the High Latitude Boundary/Cusp Region: Cluster RAPID Observations," Surveys in Geophysics, V. 26, No. 1–3, pp. 215–240 (2005).

J. F. Fennell, J. B. Blake, et al., "The Energetic Electron Response to Magnetic Storms: HEO Satellite Observations," The Inner Magnetosphere: Physics and Modeling, ed. by T. I. Pulkkinen, N. A. Tsyganenko, and R. H. W. Friedel (AGU monograph, 2005).

E. W. Fournier and B. B. Brady, "Perchlorate Leaching from Solid Rocket Motor Propellant in Water," Journal of Propulsion and Power, Vol. 21, No. 5, pp. 937–941 (Sep.–Oct. 2005).

J. S. George, "Initial Single-Event Effects Testing and Mitigation in the Xilinx Virtex II-Pro FPGA," 2005 MAPLD (Washington, DC, Sep. 2005).

J. S. George and R. Koga, "Single-Event Transients in Operational Amplifiers," 2005 IEEE Radiation Effects Data Workshop Record, Nuclear and Space Radiation Effects Conference (Seattle, July 15, 2005).

E. Grayver et al., "Design and VLSI Implementation for a WCDMA Multipath Searcher," IEEE Transactions on Vehicular Technology, Vol. 54, No. 3, pp. 889–902 (2005).

J. H. Hecht, A. Z. Liu, R. L. Walterscheid, and R. J. Rudy, "Maui Mesosphere and Lower Thermosphere (Maui MALT) Observations of the Evolution of Kelvin-Helmholtz Billows Formed near 86 km Altitude," Journal of Geophysical Research, Atmospheres, Vol. 110, No. D9, pp. D09S10/1–D09S10/19 (2005).

S. Kenderian et al., "Laser-Air Hybrid Ultrasonic Technique for Dynamic Railroad Inspection Applications," Insight—Non-Destructive Testing and Condition Monitoring, Vol. 47, No. 6, pp. 336–340 (2005).

R. Koga and K. B. Crawford, "Heavy Ion SEE Characterization of COTS 0.22 mm Field Programmable Gate Arrays," 2005 IEEE Radiation Effects Data Workshop Record, Nuclear and Space Radiation Effects Conference (Seattle, July 15, 2005).

S. F. Liu, "Spherical Arrays—Design Considerations," 18th International Conference on Applied Electromagnetics (Dubrovnik, Croatia, Oct. 14 2005).

T. S. Lomheim et al., "Modeling the MTI Electro-Optic System Sensitivity and Resolution," IEEE Transactions on Geoscience and Remote Sensing, Vol. 43, No. 9, pp. 1950–1963 (Sep. 2005).

D. K. Lynch, R. W. Russell, et al., "Coronagraphic Imaging of Pre-Main-Sequence Stars with the Hubble Space Telescope Space Telescope Imaging Spectrograph. I. The Herbig Ae Stars," Astrophysical Journal, Vol. 630, No. 2, Pt. 1, pp. 958–975 (Sep. 10, 2005).

V. N. Mahajan, "Axial Irradiance of a Focused Beam," Journal of the Optical Society of America A (Optics, Image Science and Vision), Vol. 22, No. 9, pp. 1814–1823 (Sep. 2005).

V. N. Mahajan, "Strehl Ratio of a Gaussian Beam," Journal of the Optical Society of America A (Optics, Image Science and Vision), Vol. 22, No. 9, pp. 1824–1833 (Sep. 2005).

J. A. Morgan, "Parity and the Spin-Statistics Connection," Pramana–Journal of Physics, Vol. 65, No. 3, pp. 513–516 (Sep. 2005).

J. J. Murphy et al., "Influence of Scattering and Probe-Volume Heterogeneity on Soot Measurements Using Optical Pyrometry," Combustion and Flame, Vol. 143, No. 1–2, pp. 1–10 (Oct. 2005).

T. P. O'Brien, "A Framework for Next-Generation Radiation Belt Models," Space Weather–The International Journal of Research and Applications, Vol. 3, No. 7 (July 26, 2005).

T. P. O'Brien et al., "Timescale for MeV Electron Microburst Loss During Geomagnetic Storms," Journal of Geophysical Research—Space Physics, Vol. 110, No. A9 (Sep. 1, 2005)

D. W. Pack, E. Tagliaferri, B. B. Yoo, et al., "Meteoritic Dust from the Atmospheric Disintegration of a Large Meteoroid," Nature, Vol. 436, No. 7054, pp. 1132–1135 (Aug. 25, 2005).

G. S. Peng and J. E. Wessel, "Impacts of Upper Tropospheric Clouds on GPS Radio Occultation Profiles," Geophysical Review Letters (Sep. 21, 2005).

M. N. Ross et al., "Lidar Backscatter Properties of Al₂O₃ Rocket Exhaust Particles," Journal of Spacecraft and Rockets, Vol. 42, No. 4, pp. 711–715 (July–Aug. 2005).

P. R. Rousseau and F. A. Pisano, "Three-Antenna Group Delay Calibration," Antenna Measurement Techniques Association 2005 (Newport, RI, Nov. 1, 2005).

A. D. Schutte et al., "Constrained Motion of Tethered Satellites," Journal of Aerospace Engineering (Oct. 1, 2005).

Y. Sin, N. Presser, and M. Mason, "Novel Tunable DFB Lasers with FIB Deposited Heaters," Proceedings of SPIE, Vol. 5738, Novel In-Plane Semiconductor Lasers IV, pp. 262–270 (2005).

G. G. Sivjee and R. L. Walterscheid, "Observations of Elevated Power near the Brunt-Vaeisaelae Frequency," Journal of Geophysical Research, Vol. 110, No. A6 (2005).

T. A. Spiglanin, "Rocket Science On-line: Using Live E-Learning Technology To Capture At-Risk Technical Knowledge," E-Learn 2005 (Vancouver, Oct. 24, 2005).

P. Straus, "Ionospheric Climatology Derived from GPS Occultation Observations Made by the Ionospheric Occultation Experiment," GPS Solutions, Vol. 9, No. 2, pp. 164–173 (July 2005).

Y. R. Takeuchi and J. T. Dickey, "Thermal Conductance of High-Speed Bearings in Vacuum," 2005 ASME Heat Transfer Symposium (San Francisco, July 18, 2005).

D. A. Thompson, "A Modified Three-Antenna Polarization Measurement Technique Using a Least-Squares Fit," Antenna Measurement Techniques Association 2005 (Newport, RI, Oct. 30, 2005).

D. A. Thompson, "Using a Chirp Z-Transform on Planar Near-Field Data to Expand a Portion of the Far-Fields with Increased Resolution and No Interpolation," Antenna Measurement Techniques Association 2005 (Newport, RI, Oct. 30, 2005).

J. J. Townsend, J. G. Coffer, and J. C. Camparo, "Breakdown of the Born Approximation in Laser Phase-Noise to Amplitude-Noise Conversion," Physical Review A (Atomic, Molecular, and Optical Physics), Vol. 72, No. 3, pp. 33807-1–33807-3 (Sep. 2005).

C. C. Venturini, "Astronomical Instrument Control Using LabVIEW and TCP/IP," National Instruments Week 2005 (Austin, Aug. 16, 2005).

C. C. Venturini and R. J. Rudy, "Optical and Near-IR Observations of the B[e] Star AS 119," Stars with the B[e] Phenomenon, ASP Conference Series (Vlieland Island, Netherlands, July 10–16, 2005).

H. Wang and W. F. Buell, "Laser-Cooled Continuous Cs-Beam Master Oscillator," 2005 Joint IEEE International Frequency Control Symposium and Precise Time and Time Interval (PTTI) System and Application Meeting (Vancouver, Aug. 29–31, 2005).

M. A. Weaver, R. L. Baker, et al., "A Probabilistic Paradigm for Spacecraft Random Reentry Disassembly," Reliability Engineering and System Safety, Vol. 90, No. 2–3, pp. 148–161 (Nov.–Dec. 2005).

C. P. Wright and J. D. White, "Test Like You Fly: A Risk Management Approach," Aerospace Risk Management Symposium (Oct. 2005).

A. H. Zimmerman, "Virtual Life Testing of Nickel-Hydrogen Battery Cells," 2005 NASA Battery Workshop (Huntsville, AL, Nov. 30, 2005).

Patents

(August 2005–September 2005)

R. B. Dybdal, D. D. Pidhayny, "Main Beam Alignment Verification for Tracking Antennas," U.S. Patent No. 6,937,186, Aug. 2005.

Signal acquisition using high-gain, narrow-beamwidth antennas has the possibility of signal alignment with a lower-level antenna sidelobe rather than the desired higher-level antenna main beam. Two methods were devised to validate the desired main beam alignment. One method for open-loop antenna tracking techniques distinguishes the main beam and sidelobe alignments by the differences in their angular lobe widths. A second method for closed-loop antenna tracking techniques distinguishes main beam and sidelobe alignments on differences in the error response for the control systems. Both of these methods advantageously use existing hardware and are implemented through software commanding.

E. Y. Robinson, "Satellite Stand-Off Tether System," U.S. Patent No. 6,945,499, Sep. 2005.

Recent space missions have sought to maintain precise relative positions among separate spacecraft by tethering them together; however, this requires some sort of centrifugal force or gravity-gradient stabilization to keep the tether taut and prevent uncontrolled oscillations. This invention offers an alternative. Two spacecraft are initially stowed together in a compact configuration. The primary spacecraft includes an extendable semirigid boom that is equipped with two drive motors at the base and a pulley at a distal end. A tether line is held at each end by the opposing drive motors and looped though the pulley so that it functions as a belt drive. The secondary spacecraft would be fastened to the tether so that it could be driven back and forth to any position along the length of the boom. With the tether under constant tension, the tethered spacecraft can be precisely positioned relative to the primary spacecraft up to the maximum stand-off distance without tether slacking or loose-tether dynamic instabilities.

G. F. Hawkins, "Composite Materials with Embedded Machines," U.S. Patent No. 6,946,180, Sep. 2005.

A composite material that incorporates tiny rigid elements or "machines" in a soft polymer matrix can absorb or deflect external forces. The machines have an elongate shape with an asymmetrical cross section. For example, in one embodiment, the machines resemble a pair of I-beams lain side by side, but somewhat skewed, rather than rectilinear. Thus, they remain rigid in the long direction but redirect compression forces sideways in their flat aspect. A variety of asymmetrical or nonrectilinear cross sections can be employed, such as a "Z" shape, hourglass shape, cantilever shape, or leaf spring shape. These can be extruded from common materials such as PVC and arranged in parallel rows or other configurations. Adjacent machine elements can be connected to enable more precise control of spacing and configured to respond independently or in concert to derive even more tailored physical properties.

To Spring 2006 Table of Contents