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The Doppler shift effect results in some targets shadows in theirs actual position, and a strong correlation exists between adjacent frames of Video Synthetic Aperture Radar (VideoSAR) imagery. Based on the above rationale, a novel approach to moving targets shadow detection for high-frame-rate VideoSAR imagery sequence is presented. First, a fast preprocessing stage is essential in real applications,...
Video Synthetic Aperture Radar (ViSAR) is the new application of SAR technique. Through reasonable system parameter design, ViSAR system can obtain the SAR image at a faster image rates (also referred to herein as frame rate) which permit the detection of dynamic changes that are occurring in the target scene. Therefore, frame rate as one of the core parameters of ViSAR system should be carefully...
Based on the analysis of the main issues, which include the basic problems, the main characteristics and the bottleneck troubles, in SoS (System of Systems) research field, we conjecture that we should change the SoS traditional study methodology based on reductionism. We, therefore, propose a new method, named SoSO (SoS Ontology), via keeping the essential concept of SoS, using technology of ontology,...
Ideally, an Internet Service Provider offers reachability to the entire Internet. However, it is often claimed (supported by anecdotal evidence) that reachability differences exist between ISPs, with the result that some valid, globally routable IP addresses can be reached from one ISP but not from others. Outdated Bogon filters, specialized services, and regional differences have all been conjectured...
For the issue that embedded devices have limited space, this paper proposes a static balanced tree-S-B tree to substitute B+-tree as index of embedded database. Based on some embedded databases do not have to insert and delete on the actual application, S-B tree combines the brilliant time efficiency of B+-tree and the space utilization of static tree to reduce space waste by B+-tree index. We use...
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