Implementation of Kalman Filter as a Remote Procedure Call Webservice

Web service [1-3] is one of the techniques of reusing programs developed by other organizations on their proprietary platforms. In web service, a published program is described in WSDL (Web Services Description Language) [4] and registered on UDDI (Universal Description, Discovery and Integration)[5]. Web application developers access a UDDI and search for a program that provides the function they want. They can use a published web service by inserting a few instructions of invoking it in their applications. The application communicates with the service provider in SOAP (Simple Object Access Protocol)[6]. There are three ways to implement a web service system: Remote procedure calls (RPC), Service oriented architecture (SOA) and Representational state transfer (REST). Tracking of a mobile user has many practical applications. Making use of tracking techniques, many practical systems have been built. One of the most common tracking techniques is the Kalman Filter. In this paper, we will implement Kalman filter as RPC web service.