The Study On Software Reliability For Integrated Navigation System

Computer has been widely used in each field as an equipment of acquiring and handling information in present. The demand for the software is very great and the software system is more complicated. The quality of the software product has become the problem more concerned. The software reliability is an important property of software and affected the reliability of whole computer system very greatly. So it is significant to research reliable design, reliability allocation software testing and reliability valuation.Modern navigation is a technique that related to exact mechanism, microelectronics, computer, communication, automatic control, optics, and other many branches of science. It is not only very important in the field of national defense, but also widely used in the fields of civil navigation. The software of integrated navigation system has become an important part of navigation system, it is emphasized to enhance reliability maintainability and robustness of integrated navigation software in the field of navigation at present.Taking integrated navigation display and control console as the background, this paper studies constitution and demand of integrated navigation systems. The scheme of reliable design and the method of fault tolerant are proposed considering the characteristic of integrated navigation.The software reliability allocation is one of important problem in reliability research. By analyzing the complication intension and importance of software, the model of reliability allocation and practical method based on task module is presented to fit for real-time multitask software. Through studying genetic algorithm, optimization design is solved in reliability allocation considering cost of software development. It is applied in software of integrated navigation.Firstly the capability of testing to find errors is analyzed and testing environment of simulation is designed. Through studying real-time multi-tasks software reliability testing, the testing platform is built and testing cases is...