Actual Operation Simulation of RESSOX Ground Experiments
Abstract
The first quasi-zenith satellite (QZS) of Japan, named "Michibik," was launched on 11 September 2010. After 3 months of initial functional verification tests, the actual operation will start. We have planned three kinds of experiments using Michibiki: (1) experiments without voltage-controlled oven-compensated controlled crystal oscillator (VCOCXO) control of Experiment One, (2) experiments with VCOCXO control of Experiment One, and (3) experiments with VCOCXO control of Experiment Two. In Experiment One, the remote synchronization system of the onboard crystal oscillator (RESSOX) control signal that includes information of the standard time will be sent from ground stations, and the onboard crystal oscillator of Michibiki will be controlled to synchronize the arrival of the RESSOX control signal. The RESSOX control signal is similar to such time calibration signals as WWV or JJY, but the delay is compensated. In Experiment Two, on the basis of the results of a time comparison experiment between the onboard crystal oscillator and the ground standard time conducted by the National Institute of Information and Communications Technology (NICT), the voltage applied to the onboard crystal oscillator will be calculated at the ground station and transmitted to Michibiki to control the crystal oscillator. The effects of some data and command delays on control quality and performance in an actual operation are considered as well.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2010
- Accession Number
- ADA639351
Entities
People
- Kojiro Saito
- Kumiko Machita
- Takashi Matsuzawa
- Toshiaki Iwata
Organizations
- National Institute of Advanced Industrial Science and Technology