IEEE

Multi-GNSS Real-Time Satellite Clock Estimation Using Regional Ground Stations and LEO Onboard Observations

Abstract: The use of GNSS observations collected onboard Low Earth Orbit (LEO) satellites to enhance GNSS satellite precise orbit determination has been intensively investigated. The fast speeds of ...
IEEE

Experiments of determining geopotential difference between two remote sites using two hydrogen clocks

Abstract: Based on the principle of geopotential frequency shift in general relativity, according to the geopotential frequency shift equation, the geopotential difference between two locations can be ...
studyfinds

These Atomic Clocks Wouldn’t Lose A Second In 13.8 Billion Years

What if a clock began tracking time at the very beginning of the universe? This clock would have to be so precise that it never gained or lost even a single second by today. That’s 13.8 billion years ...
GitHub

A real-time clock using CH32V003 (RISC-V), DS3231 RTC, and SSD1306 OLED display.

Displays time (HH:MM:SS), date (DD.MM or DD.MM.YYYY), and temperature (TT°C). Setup mode for adjusting time/date via three buttons (Mode, Plus, Minus). 8x8 font (0-9 ...