Wen-Qin Wang's Near-Space Remote Sensing: Potential and Challenges PDF

By Wen-Qin Wang

ISBN-10: 3642221874

ISBN-13: 9783642221873

Near-space is outlined because the atmospheric quarter from approximately 20 kilometer (km) altitude to a hundred km altitude above the Earth’s floor. It has obtained a lot realization lately and a number of other different types of near-space autos are at present being studied, built, or hired. “Near-Space distant Sensing: capability and demanding situations” concentrates generally at the function of near-space autos in bridging the distance among satellites and airplanes for microwave distant sensing purposes, delivering a top-level approach description and aiming to inspire extra study. additional, this publication additionally describes numerous power purposes resembling passive surveillance, reconnaissance, and excessive answer huge swath distant imaging. The e-book is meant for geographers, transportation engineers and different researchers fascinated about distant sensing improvement and functions, particularly for near-space automobiles. Wen-Qin Wang is an assistant professor on the college of communique and knowledge Engineering, college of digital technological know-how and know-how of China.

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Extra resources for Near-Space Remote Sensing: Potential and Challenges

Sample text

This case is just a fixed-transmitter or fixed-receiver BiSAR [29]. Note that there is a local minimum for the azimuth resolution, which is L r /2 λRt0 λRr 0 λRr 0 t0 or L t /2 (depending on whether λR L t vt > L r vr or L t vt < L r vr ). 4 Simulation Results To obtain quantitative evaluation results, we consider several typical configurations of near-space vehicle-borne BiSAR systems. 1 gives the simulation parameters with a near-space vehicle-borne receiver. The spaceborne Envisat SAR [30] and airborne radar are assumed as the transmitters in Case A (for transmitter A and receiver B) and Case B (for transmitter B and receiver B), respectively.

In this case, it is just a monostatic SAR. If vt = 0 or vr = 0 and L t = L r , the azimuth resolution is found to be ρa = L t = L r . This case is just a fixed-transmitter or fixed-receiver BiSAR [29]. Note that there is a local minimum for the azimuth resolution, which is L r /2 λRt0 λRr 0 λRr 0 t0 or L t /2 (depending on whether λR L t vt > L r vr or L t vt < L r vr ). 4 Simulation Results To obtain quantitative evaluation results, we consider several typical configurations of near-space vehicle-borne BiSAR systems.

We note that an imaging coverage size of dozens of square kilometers (the size is from 2 × 3 km to 6 × 6 km in the simulation examples) can be obtained. 6 gives the example range resolution results. 69781 (a) 3000 29 −1500 −1000 −500 0 500 1000 Imaging coverage in range [m] 1500 Fig. 6 Range resolution of the example near-space vehicle-borne BiSAR configurations. a Case A Transmitter A and Receiver A. 0511 −1500 −1000 −500 0 500 1000 Imaging coverage in azimuth [m] Fig. 7 Azimuth resolution of the example near-space vehicle-borne BiSAR configurations.

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Near-Space Remote Sensing: Potential and Challenges by Wen-Qin Wang


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