A new client-server architecture for real-time Micro-Movement ground based SAR system

Micro Movement iMager (MMI), a new solution of ground based SAR system, for multi-purpose monitoring specific region of interest. All kind of disaster including the natural hazard or human-instigated disaster can be monitored by the embedded programming functions such as the re-projection, landslide change detection, elevation change detection, real-time warning alarm and the temporal analysis for entire database. The integration of hardware and software was introduced in this paper for the purpose of operation, database access and maintenance. According to the server-client architecture, the system was split into three parts. First is the data acquisition hardware that combines a controlling system. Some characteristics such as scheduling, self-calibration and remote controlling are embraced in this system. Another is the bridge system including the database, command centre and database analysis capabilities. Because that all command and analysis were passed through this bridge system by the client, the computing capabilities, data access effectiveness and convenience of database management had be considerate. All kind of real-time and stored data can be accessed and analyzed on the fly without any redundant data transfer. The last part is the user-friendly client interface and deformation application which shown in Figure 1. All functions are built with object oriented and easy-to-use purpose reducing unnecessary operations including the hardware controlling, analysis and visualization. According to the interactive visualization toolkit, the well-analyzed information was presented with two or three dimension widget fusing DEM and aerial photo. All of operation were implemented and evaluated in chamber and real testing in-situ environment. This architecture was also verified that is suitable for the indoor and outdoor environment. The outdoor real data, which obtained at Cameron highland in Malaysia and Meihua Village in Taiwan, were demonstrated in this paper.