All Stories

  1. Traceable Frequency Measurements with Counters
  2. Measure traceable time and frequency with GNSS receivers
  3. Comparisons of European Atomic Clocks via Satellites
  4. Fiber-Based UTC Dissemination Supporting 5G Telecommunications Networks
  5. PTB’s Time and Frequency Services 2018 – 2019
  6. Sources for accurate frequency and legal time in measurement technology and financial markets
  7. An Uncertainty Study on Traceable Frequency and Time with Disciplined Oscillators for Metrology and Financial Sectors
  8. Improving two-way satellite time and frequency transfer with redundant links for UTC generation
  9. Amelioration of the usage and Monitoring of GNSS Signals at PTB
  10. On Disciplined Oscillators for Traceable Frequency and Time in Metrology and Financial Sectors
  11. Calibrated optical time transfer for supervision of telecom networks
  12. Use of software-defined radio receivers in two-way satellite time and frequency transfers for UTC computation
  13. On traceability of a disciplined frequency standard to legal units
  14. Evaluation and development of optical time transfer (OTT) links between PTB and Deutsche Telekom
  15. Implementation of SDR TWSTFT in UTC Computation
  16. PTB�s Time and Frequency Services 2017
  17. Initial use of Galileo signals in PTB
  18. Monitoring of time signals broadcast by EFR long-wave transmitters at PTB
  19. Fiber optic time transfer between PTB and Deutsche Telekom using multi-link redundant topology
  20. A Study on Using the SDR Receiver for the Europe-to-Europe and Transatlantic TWSTFT Links
  21. PTB�s Time and Frequency Services 2015 � 2016
  22. Fiber-Optic Time Transfer for UTC-Traceable Synchronization for Telecom Networks
  23. Study of the OP-PTB link by carrier-phase two-way satellite time and frequency transfer
  24. Carrier-phase two-way satellite frequency transfer between LNE-SYRTE and PTB
  25. The 2015 TWSTFT calibration for UTC and related time links
  26. Towards sub-nanosecond synchronization of a telecom network by fiber optic distribution of UTC(k)
  27. Direct comparison of optical lattice clocks with an intercontinental baseline of 9000  km
  28. Comparison of Caesium fountain clocks in Europe and Asia
  29. Carrier-phase two-way satellite frequency transfer over a very long baseline
  30. Direct frequency comparison of intercontinentally separated Sr lattice clocks using carrier-phase two-way satellite frequency transfer
  31. Evaluation of the AGH-designed time and frequency transfer system on a 149 km PTB-hanover-PTB fiber link
  32. International timescales with optical clocks (ITOC)
  33. TWSTFT calibration involving four sites using a mobile sation on a trailer
  34. A correction model of dispersive troposphere delays for the ACES microwave link
  35. Time transfer through optical fibres over a distance of 73 km with an uncertainty below 100 ps
  36. EURAMET Project 1156, GPSCALEU: Results of two years GPS receiver calibration campaign
  37. State-of-the-art time link calibration with a mobile TWSTFT station
  38. Generation of UTC(PTB) as a fountain-clock based time scale
  39. Remote atomic clock synchronization via satellites and optical fibers
  40. Impact of the transponder configuration on the Asia-Europe TWSTFT network
  41. New realization strategy for UTC(PTB)
  42. Summary of the link calibration between NIM and PTB using a traveling GPS receiver
  43. Time transfer through optical fibers (TTTOF): Progress on calibrated clock comparisons
  44. On improved GPS-based calibration of the time links between metas and PTB
  45. Performance evaluation of NIM GPS receivers in use for time transfer with PTB
  46. Restoring a TWSTFT calibration with a GPS bridge - A standard procedure for UTC time transfer
  47. Improved GPS-based time link calibration involving ROA and PTB
  48. A GPS calibration trip experience between ROA and PTB
  49. Concept for an accurate calibration of long baseline two-way satellite time and frequency transfer (TWSTFT) links via two separated transponders on one telecommunication satellite
  50. GPS carrier phase and precise point positioning time scale comparisons using different software packages
  51. Results of the 2008 TWSTFT calibration of seven european stations
  52. The comparison between TWSTFT and GPS time transfer result of PTB-TL LINK
  53. On measurement noise in the European TWSTFT network
  54. On the accuracy of two-way satellite time and frequency transfer: A study of triplet closures
  55. Time transfer with nanosecond accuracy for the realization of International Atomic Time
  56. Description of the TWSTFT Station at METAS and Presentation of the Calibration Campaign 2006
  57. Fidelity - Progress Report on Delivering the Prototype Galileo Time Service Provider
  58. Studies on Measurement Noise in the European TWSTFT Network
  59. A straightforward frequency-estimation technique for GPS carrier-phase time transfer
  60. Comparison between frequency standards in Europe and the USA at the 10−15 uncertainty level
  61. A simultaneous calibration of the IEN/PTB time link by GPS CV and TWSTFT portable equipment
  62. Calibration of the IEN-PTB TWSTFT link with a portable reference station
  63. Growth of InP Layers on Nanometer-Scale Patterned Si Substrates
  64. Semiconductor nanostructures for quantum wire lasers
  65. Growth of 3C-SiC on Si(100) by LPCVD and Patterning of the Grown Layers
  66. Growth of SiC on Si(100) by Low-Pressure MOVPE
  67. Laser-action in V-groove-shaped InGaAs-InP single quantum wires
  68. Formation of Self-Assembled Nanometer-Scale InP Islands on Silicon Substrates
  69. Two-way satellite time transfer between USNO and PTB
  70. Homogeneity of InGaAs/InP nanostructures
  71. Intersubband absorption in δ-doped GaInAs-InP multi quantum wells
  72. Preparation and characterization of InGaAs quantum wires on V-groove patterned InP