关键词: |
CLOCKS, ZCLOCKSZ, GLOBAL POSITIONING SYSTEM, ZGLOBAL POSITIONING SYSTEMZ, ENVIRONMENTS, ZENVIRONMENTSZ, FLOORS, ZFLOORSZ, PASSIVE SYSTEMS, ZPASSIVE SYSTEMSZ, UNITED KINGDOM, ZUNITED KINGDOMZ, QUARTZ, ZQUARTZZ, MASERS, ZMASERSZ, RUBIDIUM, ZRUBIDIUMZ, FREQU |
摘要: |
Quartzlock is engaged in research to improve the generation, measurement, and distribution of accurate frequency sources that are stable with environmental changes. The elements in this progress report are both active and passive masers, quartz frequency standards, measurement systems, GPS/Glonass receiver, GPS CVTT, and rubidium standards. Space-qualified passive hydrogen masers and rubidium oscillators are considered. A new measurement system is detailed and the first noise floor results are reported. |