Abstract
This paper presents the development of a multi-functional and miniature GPS receiver in NASDA. The investigation for the design and implementation method for the spaceborne GPS receiver has been conducted. And a bread-board model of parallel signal search on matched filtering technique, which is an essential technique of the multi-functional GPS receiver, was manufactured. And time to acquisition (TTA) of GPS signal was measured using GPS simulator. The test results of the trial product show that TTA is 60ms and time to first fix (TTFF) of the navigation calculation in a low-altitude orbit is within 5.3min in worst case.
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