Judah Levine

My research focuses on understanding the statistics of precision clocks and frequency standards, developing methods for distributing precise time and frequency information, and applying precision measurement techniques to problems of geophysical interest. My specific projects include developing methods for transmitting time using dial-up telephone lines, the internet, and satellite systems; investigating algorithms for authenticating time signals transmitted via public networks; and designing a statistically optimum method for distributing data from a primary frequency standard without degrading its accuracy. In addition, I continue to work to improve the accuracy and stability of Coordinated Universal Time, the time scale used as a reference by all of the NIST time and frequency services.