The quality of service evaluating tool for WAAS

In this paper, we introduce a software kit for evaluating the Quality of Service (QoS) provided by the Wide Area Augmentation System (WAAS). This tool, named Service Volume Model (SVM), is a professional software providing types of real-time QoS criteria evaluations for WAAS, such as service accuracy, integrity, continuity, availability and safety. Those QoS evaluations can provide the user accurate safety-critical positioning reference information.