A Coming of Age for Gps: a Rtlinux Based Gps Receiver
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چکیده
The Global Positioning System, or GPS, is a key technology for both the civilian and scientific research markets. GPS provides users with precise geodetic positioning and time determination. Most GPS receivers require specialized hardware and complex software to operate. One receiver, originally designed to run in DOS, will be the focus of a code migration to RTLinux. The major aspects of the migrated code are an interrupt service routine, multiple threads, and TCP connectivity. Following the migration we noticed that not only did receiver stability increase dramatically, but also errors in positioning decreased. To provide insight into code migration from DOS to RTLinux, we will focus on the specific difficulties, discoveries, and enlightenments encountered.
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تاریخ انتشار 2000