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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Weaver, G.L. Miranian, M. Garstecki, J.F. |
| Copyright Year | 2012 |
| Description | Author affiliation: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road Laurel, MD 20723 (Weaver, G.L.; Miranian, M.; Garstecki, J.F.) |
| Abstract | The recent introduction of a first generation of chip scale atomic clocks (CSAC) offers an opportunity to enhance space-based communication and navigation systems with their unique aspects of frequency accuracy and very low size, weight and power. Nonetheless, CSAC frequency noise levels are likely too high to be used directly as master frequency sources in deep space communication systems. Composite clock systems combine complementary frequency sources to utilize the best accuracy and stability of each source to extend the overall performance of the clock system. We will discuss our research work toward a composite ultra-stable oscillator (USO)/CSAC timekeeping system. Such a system would preserve the low noise and excellent short term stability of the quartz USO while using the CSAC technology as an augmentation for clock drift correction and monitoring for in-situ frequency disturbance during autonomous operation. |
| Starting Page | 1 |
| Ending Page | 9 |
| File Size | 757206 |
| Page Count | 9 |
| File Format | |
| ISBN | 9781457705564 |
| ISSN | 1095323X |
| e-ISBN | 9781457705571 |
| DOI | 10.1109/AERO.2012.6187111 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-03-03 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Clocks Thermal stability Time frequency analysis Space vehicles Frequency control Accuracy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Aerospace Engineering Space and Planetary Science |
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