NASA Tech Briefs, March 2009Topics covered include: Improved Instrument for Detecting Water and Ice in Soil; Real-Time Detection of Dust Devils from Pressure Readings; Determining Surface Roughness in Urban Areas Using Lidar Data; DSN Data Visualization Suite; Hamming and Accumulator Codes Concatenated with MPSK or QAM; Wide-Angle-Scanning Reflectarray Antennas Actuated by MEMS; Biasable Subharmonic Membrane Mixer for 520 to 600 GHz; Hardware Implementation of Serially Concatenated PPM Decoder; Symbolic Processing Combined with Model-Based Reasoning; Presentation Extensions of the SOAP; Spreadsheets for Analyzing and Optimizing Space Missions; Processing Ocean Images to Detect Large Drift Nets; Alternative Packaging for Back-Illuminated Imagers; Diamond Machining of an Off-Axis Biconic Aspherical Mirror; Laser Ablation Increases PEM/Catalyst Interfacial Area; Damage Detection and Self-Repair in Inflatable/Deployable Structures; Polyimide/Glass Composite High-Temperature Insulation; Nanocomposite Strain Gauges Having Small TCRs; Quick-Connect Windowed Non-Stick Penetrator Tips for Rapid Sampling; Modeling Unsteady Cavitation and Dynamic Loads in Turbopumps; Continuous-Flow System Produces Medical-Grade Water; Discrimination of Spore-Forming Bacilli Using spoIVA; nBn Infrared Detector Containing Graded Absorption Layer; Atomic References for Measuring Small Accelerations; Ultra-Broad-Band Optical Parametric Amplifier or Oscillator; Particle-Image Velocimeter Having Large Depth of Field; Enhancing SERS by Means of Supramolecular Charge Transfer; Improving 3D Wavelet-Based Compression of Hyperspectral Images; Improved Signal Chains for Readout of CMOS Imagers; SOI CMOS Imager with Suppression of Cross-Talk; Error-Rate Bounds for Coded PPM on a Poisson Channel; Biomorphic Multi-Agent Architecture for Persistent Computing; and Using Covariance Analysis to Assess Pointing Performance.
IDRelationTitle20090011189WorkProcessing Ocean Images to Detect Large Drift Nets20090011191WorkContinuous-Flow System Produces Medical-Grade Water20090011188WorkUsing Covariance Analysis to Assess Pointing Performance20090011195WorkAtomic References for Measuring Small Accelerations20090011197WorkSpreadsheets for Analyzing and Optimizing Space Missions20090011184WorknBn Infrared Detector Containing Graded Absorption Layer20090011187WorkImproving 3D Wavelet-Based Compression of Hyperspectral Images20090011211WorkUltra-Broad-Band Optical Parametric Amplifier or Oscillator20090011212WorkAlternative Packaging for Back-Illuminated Imagers20090011209WorkDamage Detection and Self-Repair in Inflatable/Deployable Structures20090011208WorkBiasable Subharmonic Membrane Mixer for 520 to 600 GHz20090011213WorkSOI CMOS Imager with Suppression of Cross-Talk20090011206WorkHardware Implementation of Serially Concatenated PPM Decoder20090011214WorkLaser Ablation Increases PEM/Catalyst Interfacial Area20090011185WorkSymbolic Processing Combined with Model-Based Reasoning20090011201WorkEnhancing SERS by Means of Supramolecular Charge Transfer20090011196WorkImproved Instrument for Detecting Water and Ice in Soil20090011192WorkDSN Data Visualization Suite20090011200WorkDiamond Machining of an Off-Axis Biconic Aspherical Mirror20090011202WorkPolyimide/Glass Composite High-Temperature Insulation20090011210WorkWide-Angle-Scanning Reflectarray Antennas Actuated by MEMS20090011216WorkParticle-Image Velocimeter Having Large Depth of Field20090011186WorkDetermining Surface Roughness in Urban Areas Using Lidar Data20090011194WorkModeling Unsteady Cavitation and Dynamic Loads in Turbopumps20090011207WorkBiomorphic Multi-Agent Architecture for Persistent Computing20090011190WorkDiscrimination of Spore-Forming Bacilli Using spoIVA20090011205WorkError-Rate Bounds for Coded PPM on a Poisson Channel20090011203WorkNanocomposite Strain Gauges Having Small TCRs20090011198WorkPresentation Extensions of the SOAP20090011199WorkReal-Time Detection of Dust Devils from Pressure Readings20090011193WorkQuick-Connect Windowed Non-Stick Penetrator Tips for Rapid Sampling20090011204WorkHamming and Accumulator Codes Concatenated with MPSK or QAM20090011215WorkImproved Signal Chains for Readout of CMOS Imagers