Corpus ID: 55964735

NEW IMPROVED SYSTEM FOR WWVB BROADCAST

@inproceedings{Lowe2012NEWIS,
  title={NEW IMPROVED SYSTEM FOR WWVB BROADCAST},
  author={John P. Lowe and Matthew J. Deutch and Glenn K. Nelson and Douglas S. Sutton and William C. Yates and Peder Hansen and Oren Eliezer and Tom Jung and Stephen Morrison and Yingsi Liang and Dinesh Rajan and Sidharth Balasubramanian and Arun Ramasami and Waleed Khalil},
  year={2012}
}
The WWVB broadcast of the time-code signal has undergone no major changes in its communications protocol and modulation scheme since its introduction in 1963. [...] Key Result The new protocol and modulation scheme being introduced by NIST effectively addresses these problems, and will enable greatly improved reception of the WWVB broadcast without affecting existing devices. This backward-compatibility is achieved by maintaining the existing AM characteristics while adding various new features through phase…Expand
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8 Citations
Background Citations
5
Methods Citations
3

8 Citations

Citation Type

Citation Type

WWVB time signal broadcast: an enhanced broadcast format and multi-mode receiver
TLDR
To improve the station's coverage, an enhanced broadcast format, based on the addition of phase modulation (PM), was deployed in 2012 and its enhanced features enable more reliable receiver performance and greater time-keeping accuracy at reduced power consumption. Expand
Receiver Design of Radio-Controlled Clocks Based on the New WWVB Broadcast Format
TLDR
The architecture and algorithms for the first all-digital radio-controlled clock receiver for the new WWVB broadcast format and two alternative timing synchronization approaches are investigated, showing that the correlation-based synchronization technique reduces the implementation complexity by over 50%, while its performance is only less than 1 dB inferior to that of the ML-based technique. Expand
Interference-robustness improvement in BPSK receivers for the enhanced WWVB broadcast
Radio controlled clocks (RCCs) based on the WWVB broadcast, commonly referred to as “atomic clocks”, might experience relatively high levels of on-frequency interference from the equivalent MSF… Expand
A new broadcast format and receiver architecture for radio controlled clocks
TLDR
A digital receiver architecture, amenable to integration in a CMOS system-on-chip (SoC), is proposed, which relies on digital signal processing, thereby eliminating the need for the crystal filter and other passive components found in existing receivers. Expand
TIME AND FREQUENCY BROADCAST WITH DCF77
For over fifty years the Physikalisch-Technische Bundesanstalt (PTB) has disseminated time signals and standard frequency by means of the low-frequency transmitter DCF77. In addition, since the 1970s… Expand
A multi-mode software-defined CMOS BPSK receiver SoC for the newly enhanced WWVB atomic clock broadcast
The first receiver system-on-chip (SoC) for the newly enhanced phase-modulation based WWVB broadcast is presented. Having an extensively digital architecture, and relying on the new features of the… Expand
WWVB: A Half Century of Delivering Accurate Frequency and Time by Radio
  • M. Lombardi, Glenn K. Nelson
  • Computer Science, Medicine
  • Journal of research of the National Institute of Standards and Technology
  • 2014
TLDR
A history of the National Institute of Standards and Technology (NIST) radio station WWVB is provided, from its origins as a source of standard frequency, to its current role as the source of time-of-day synchronization for many millions of radio controlled clocks. Expand
Sequential Frame Synchronization Based on Hypothesis Testing With Unknown Channel State Information
TLDR
This paper analytically shows that hypothesis testing can have better reliability and lower energy consumption than point estimation if the probability of false alarm of the hypothesis testing is lower than the minimum of two thresholds. Expand

References

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