Abstract: Recently, the use of Ultra Wide Band (UWB) technology has been increasing. This technology makes it possible to obtain high-resolution images of distant objects using microwave signals. A 2D ISAR algorithm was developed for defense and tomography and is used in medical approach. In this paper, the tomography algorithm is studied, using microwave similar to those used in reflection tomography. Three-dimensional images were reconstructed using two receiver antennae and one transmitter. The ISAR interferometry configuration was designed as a backprojection algorithm. When compared to 2D imaging, the signal has an elliptical range profile in the 3D observation mode. An elliptical range migration is confirmed in both theoretical and experimental results.

• Publication Date: 21-Dec-2014
• DOI: 10.15224/978-1-63248-034-7-98
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Abstract: As the rapid developing of mobile communication, the Long Term Evolution Advanced (LTE-Advanced) with high speed transmission is becoming the mainstream of mobile communication system, and the technique of relay plays an important role among all. Relay Node (RN) has advantages including low power, lower cost and system deployment easily which can enhance system capacity, coverage area, and reduce network deployment cost. How to increase the range of coverage effectively but also give consideration to reduce the cost is a great challenge. This paper adopts Particle Swarm Optimization with Time Varying Acceleration Coefficients (PSO-TVAC) which has distributed memory and contiguous range searching function, that applies to Evolved NodeB (eNB) and Relay Node to deploy network in particular area for lower cost of network deployment and ensure the area coverage. The simulation results show that the proposed PSO-TVAC compares with Setcover Algorithm and PSO in deployment with eNBs, eNBs and

• Publication Date: 21-Dec-2014
• DOI: 10.15224/978-1-63248-034-7-102
• Views: 0
• Downloads: 0