Synthetic Aperture Radar (SAR) is a kind of high-resolution microwave imaging radar, which has been widely used in military and national economic fields, for it can work all-weather and all-time. The SAR simulation technology plays an important role in the development and testing of SAR. What’s more, it is also important to SAR imaging algorithm
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Airborne synthetic aperture radar (Airborne SAR) is a kind of high-resolution imaging radar, Its platform is aircraft, in distance it acquires high-resolution by emitting wide-bandwidth and in azimuth by synthetic aperture principle. All image algorithms is built on ideal SAR model and that means the airplane flights in a straight line with a constant speed
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SAR images get wide application and rapid development because they can be obtained any-time, any-weather and with high resolution. Since each SAR image inevitably contains coherent speckle noise, the relationship between adjacent pixels reduced severely, and speckle noise is the key issue which restricts SAR image compression.Due to the SAR coherent imaging characteristics, the images
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Synthetic aperture radar (SAR) is a new kind of radar techonology, in which a theoretical wider antenna is built through signal analysis techniques to obtain a fine azimuth resolution. It can work all-time and all-weather, and can penetrate some shelters with imaging and map with the advantage of far from the swath, so SAR is
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Stepped-frequency Synthetic Aperture Radar (SAR) achieves high azimuth resolution by the synthetic aperture principle, while the high range resolution depends on the large bandwidth of the transmitted signal. The system range resolution is limited by the bandwidth of transmitted signal. As a result, the actual application requirement can not be satisfied for weak targets detection
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Bistatic Synthetic Aperture Radar with fixed receiver is one operating mode of bistatic SAR. Its synthetic aperture is formed by the motion of transmitter. Compared with the traditional satellite and airborne systems, the bistatic SAR has the advantages of bistatic imaging systems. What’s more, it is of low cost and its complexity of imaging process
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Target micro-motion conveys extremely useful information for understanding synthetic aperture radar (SAR) images. It means a lot for future military application to study the detection and imaging of micro-motion target. Compared with single-channel SAR, dual-channel SAR has become hot in current study due to the stronger ability in clutter suppression. Therefore, by using the classic
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The hardware-in-the-loop simulation technology is often used to imitate the radar working circumstance, which is one of the most important instruments for Synthetic Aperture Radar (SAR) studying and exploiting. This new technology improve the simulation reliability by insert the real hardware in the simulation system loop, which made it become an important method of SAR
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The Synthetic Aperture Radar (SAR) has been widely used in military andcivilian areas, because of its weather-independent, all time and strong penetratingcapability. Many countries have devoted a great deal of attention and capital into SAR,so that this technology has made enormous progress in previous decades.Comparatively speaking, SAR image understanding and interpretation has made littleprogress. As
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With the continuous development of the synthetic aperture radar (SAR) technology, the image sensor can provide great amount of image which is all-weather conditions, high-resolution, detailed ground mapping information. However, faced with a large scene of SAR image, totally dependent on human interpretation takes a lot of manpower, which can not adapt to real-time requirement
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