Based On Distributed Simulation Technology Of Hla Airborne Sar Study

The foundation of Synthetic Aperture Radar (SAR) simulation system offers an important method and tool for performance analysis of SAR, and speed up the development of SAR. At the meantime, the distributed simulation system based on High Level Architecture (HLA) has a good performance on reusability and interoperability. So using HLA technique frame to establish SAR simulation system has an important practical significance for research of SAR technology and development of equipment.In this dissertation, the distributed simulation technique of airborne SAR based on HLA is in-depth studied, author participate in the design of whole framework of this simulation system, and design Data Arrange and Signal Processor federate.The main content of this dissertation is as follows:1. The principle of SAR high resolution is studied, imaging model of airborne stripmap SAR is established, and the principle of imaging processing is analyzed from signal processing of airborne SAR.2. Main contents and basic conceptions of HLA are introduced, including RTI, OMT, FEDEP model, and narrate in particular what to accomplish in every step of FEDEP model.3. According to the FEDEP model, the design flow of the distributed simulation system of airborne SAR based on HLA is discussed and systematically, the design of network transport layer for data communicate is introduced.4. Analyze the development of two important federates, Data Arrange and Signal Processor, point out the difficulties in design, such as encapsulation of imaging algorithmic, memory management for large data, and using thread pool to realize multi-thread algorithmic.5. Finally, the system is tested using the test federation execution and the results are presented, validate the conclusions.