A 98 - 37082 Aiaa - 98 - 4237 Using Intent Information in Probabilistic Conflict Analysis
نویسنده
چکیده
A method to incorporate aircraft flight path intent information into a conflict detection and resolution system is described. The approach uses a set of probability density functions that describe potential trajectory errors such as cross-track, along-track, or course change, in a series of Monte Carlo simulations. The simulations are used to estimate the probability of conflict in traffic encounters. Intent information is readily included in the model, and can consist of a series of waypoints, heading or track holds, target altitudes, or maneuvering limitations from free flight concepts. The method also allows for direct incorporation of the confidence with which an intended path will be followed. An efficient modeling method is used that enables the Monte Carlo simulations to be run in real time, suggesting that such an approach could be used in conflict detection systems. Several example traffic encounters are discussed using conflict probability maps that show regions in which a conflict will likely occur. The potential benefit of access to intent information in a vertical conflict example is also shown.
منابع مشابه
AIAA 98–0712 Reduction and Analysis of Phosphor Thermography Data With the IHEAT Software Package
متن کامل
Microsoft Word - AIAA-98-0492É
Abstrac t A method is introduced and demonstrated which uses parametric stability derivative data (in the form of regression equations) and probabilistic analysis techniques to evaluate the impact of uncertainty on the handling qualities characteristics of a family of aircraft alternatives. While the method is based on the use of elementary design parameters familiar to the configuration design...
متن کاملAiaa-98-4758 a Comparison of Approximation Modeling Techniques: Polynomial versus Interpolating Models
Two methods of creating approximation models are compared through the calculation of the modeling accuracy on test problems involving one, ve, and ten independent variables. Here, the test problems are representative of the modeling challenges typically encountered in realistic engineering optimization problems. The rst approximation model is a quadratic polynomial created using the method of l...
متن کاملDescription Logics based Formalization of Wh-Queries
The problem of Natural Language Query Formalization (NLQF) is to translate a given user query in natural language (NL) into a formal language ( ) so that the semantic interpretation has equivalence with the NL interpretation. Formalization of NL queries enables logic based reasoning during information retrieval, database query, question-answering, etc. Formalization also helps in Web query norm...
متن کاملWhen are methods complementary?
We address the issue of when software development methods are complementary, i.e., determining when a method is capable of a task that another method cannot perform. Our intent is to examine complementarity in order to help determine when to carry out method integration. We propose some factors for method complementarity, and suggest that contextdependent criteria, such as real-world domain and...
متن کامل