A real-time software GNSS receiver development framework
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Abstract
This dissertation provides the architecture and describes the development effort of a modular software-based real-time global navigation satellite system (GNSS) receiver research framework using the Microsoft .NET Framework and the C# programming language. A pipelined signal-processing model is used to address key timing and intermodule synchronization challenges inherent in working with the parallelism required to simultaneously receive and process four or more satellite signals. An extensible interoperability layer provides clearly defined functional interfaces and simplifies the integration of existing hardware and software components with any stage in the signal pipeline. Various aspects of front-end hardware design requirements, as well as new acquisition and tracking mechanisms, are identified and discussed.
The expected benefits of this framework development will be to establish a whole context for software receiver research and to provide a unified view of a software receiver implementation using tools and technologies that encourage the development of diverse feature-rich applications.