The Study of High Resolution Two-Dimensional Microwave Imaging by Using the Finite RF Bandwidth Signal

• Main Authors: Yu-Hsuan Huang, 黃友宣
• Other Authors: Dau-Chyrh Chang
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/49184402767000829320

碩士 === 大葉大學 === 電信工程學系碩士班 === 92 === In general, while microwave illuminate the target that will produce reflection and scattering signals, and the magnitude of reflecting signals is the radar cross section (RCS) of the targets. <a href="http://www.ntsearch.com/search.php?q=People&v=56">People</a> can make a lot of analyses by using these data of reflecting signals. The microwave imaging technology is often used to make the targets achieve the stealthy, non-destructive measurement, discriminate from the shape of targets and examining the topography. In this paper, two metal pots and one metal ball will be measured in different polarization measurement. From the result of reflection signal of two metal pots in vertical polarization measurement show is large than horizontal polarization measurement, but the reflection signal of one metal ball in different polarization measurement is the same. In order to discriminate from the shape of targets, that have including rectangle、polygon and cylinder are measured by using microwave imaging technology of low sampling angle for. The size is the same to its result with entity. Then the microwave image technology for high sampling angle is used to measure the cylinder, and compares the measured result with the measured result for the low sampling angle. Finally, we must <a href="http://www.ntsearch.com/search.php?q=design&v=56">design</a> a wide band antenna if we want to get the two-dimensional microwave image of high resolution cells. It is very difficult to <a href="http://www.ntsearch.com/search.php?q=design&v=56">design</a> a wide band antenna, so we make a study of the high resolution two-dimensional microwave imaging by using the finite RF bandwidth signal.