The JPL Open Repository (JOR) replaced the JPL Technical Report Server (TRS) in 2023. It is a repository for digital copies of technical publications authored by JPL employees. It includes journal articles (the Final Accepted Version), meeting papers, presentations, and other publications cleared for external distribution from 1992 to the present. It also includes research datasets from 2022 on.

Years covered: 1992 to the present.
  • 1992-2021 records were originally on the JPL Technical Report Server (TRS) on Dspace system; those records were migrated to Dataverse in 2022.
  • Records with publication date 2022 or later are native to the Dataverse.
  • Data sets: 2022 to present
  • There are a few pre-1992 records. Those were added to the system on a case-by-case request basis.

  • Persistent IDs (PIDs):
  • 1992-2021 records have Handles
  • 2022 and later records have Digital Object Identifiers (DOIs).
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    41,781 to 41,790 of 42,449 Results
    Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4
    May 23, 1993
    Lee, Ho-kyoung; Divsalar, Dariush; Weber, Charles, 1993, "Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4", https://hdl.handle.net/2014/35200, Geneva, Switzerland, JPL Open Repository
    It is well known that trellis codded modulation schemes using multidimensional constellations for PSK and QAM have a number of advantages over the more common two dimensional schemes.
    Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4
    May 23, 1993
    Lee, Ho-Kyoung; Divsalar, Dariush; Weber, Charles, 1993, "Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4", https://hdl.handle.net/2014/34903, Geneva/Switzerland, JPL Open Repository
    It is well known that trellis codded modulation schemes using multidimentional constellations for MPSK and QAM have a number of advantages, such as improved performance, over the more common two dimensional schemes [1,2].
    A Prototype Quasi-Optical SIS Array Receiver
    May 23, 1993
    Stimson, Philip A.; Dengler, Robert J.; LeDuc, Henry G.; Seigel, Peter H., 1993, "A Prototype Quasi-Optical SIS Array Receiver", https://hdl.handle.net/2014/36618, San Diego, California, USA, JPL Open Repository
    We report measurements on a prototype SIS array receiver consisting of a ten-element dipole antenna array with half square micron niobium SIS junctions.
    (abstract) Supernova Remnant and Molecular Clouds
    May 22, 1993
    Wang, Zhong, 1993, "(abstract) Supernova Remnant and Molecular Clouds", https://hdl.handle.net/2014/35155, Xian, China, JPL Open Repository
    Upon impact of the shockwaves generated by a supernova remnant, molecular gas and the associated dust grains are substantially excited and become prominent sources of infrared emission. Recent studies of such interactions, utilizing the infrared data and information from other wa...
    Evidence for Low Mass Star Formation in Cooling Flow Galaxies
    May 21, 1993
    Barba, Mary Ellen, 1993, "Evidence for Low Mass Star Formation in Cooling Flow Galaxies", https://hdl.handle.net/2014/35429, USA, JPL Open Repository
    Evidence is presented based on narrow band optical and near-IR imaging that field and cluster cooling flow galaxies are enriched in low mass stars, the result of recent, truncated IMF star formation from accreting gas.
    Extraplanar Emission-Line Gas in NGC 891
    May 21, 1993
    Pildis, Rachel A.; Bregman, Joel N.; Schombert, James M., 1993, "Extraplanar Emission-Line Gas in NGC 891", https://hdl.handle.net/2014/35430, USA, JPL Open Repository
    We have used spectroscopy and high resolution imaging to study the disk-halo interaction in the edge-on spiral galaxy NGC 891, which is known to have extraplanar gas.
    Observation and Measurement of Horizontal Terrain Displacements Associated With the Landers Earthquake of 28 June 1992 Using Spot Panchromatic Imagery
    May 19, 1993
    Crippen, Robert E., 1993, "Observation and Measurement of Horizontal Terrain Displacements Associated With the Landers Earthquake of 28 June 1992 Using Spot Panchromatic Imagery", https://hdl.handle.net/2014/34810, Reno, Nevada, USA, JPL Open Repository
    No abstract provided
    Radar Interferometry: A Review
    May 18, 1993
    Zebker, Howard A., 1993, "Radar Interferometry: A Review", https://hdl.handle.net/2014/35188, Naples, Italy, JPL Open Repository
    No abstract provided
    Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-Angular Measurements
    May 18, 1993
    Martonchik, John V.; Eric D. Danielson; Diner, David J.; Bruegge, Carol J., 1993, "Retrieval of Surface Directional Reflectance and Hemispherical Albedo Using Multi-Angular Measurements", https://hdl.handle.net/2014/35367, Tokyo, Japan, JPL Open Repository
    Atmospheric Correction schemes, using various levels of approximation, are described to retrieve surface bidirectional reflectance factors and directional hemispherical reflecances from multi-angle radiance measuremensts.
    Microgravity Investigations in the Physics Fluids Using Acoustic Techniques
    May 17, 1993
    Trinh, E. H., 1993, "Microgravity Investigations in the Physics Fluids Using Acoustic Techniques", https://hdl.handle.net/2014/35193, Ottawa, Canada, JPL Open Repository
    No abstract provided
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