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MATLAB/SIMULINK Based Analysis and Simulation of Return Signal Simulator |
GAO Yang, LIU He-guang |
(National Remote Sensing Lab,Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing100080,China) |
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Abstract Spaceborne radar altimeter is an important active microwave remote sensor which is able to measure the oceans with high accuracy. As altimeter is able to measure the height, SWH and backscattering coefficient, it has been widely used in various aspects of ocean research. Sea surface return signal simulator (RSS) receives and processes the chirp signal transmitted by radar altimeter. It then generates sea surface wave spectrum to modulate the altimeter chirp and retransmits the modulated signal back to the altimeter, after precisely controlled delay of time. RSS is an effective way for altimeter prelaunch test and calibration. RSS is a highly complex system with comprehensive functions, and thus the simulation and analysis have significant meaning for its design, precision analysis and calibration application. This thesis introduces the structure of RSS, analyses the sea echo spectrum generation principle, designs a SIMULINK model for RSS and gives the simulation result.
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Received: 16 February 2007
Published: 25 November 2011
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[1] 姜景山.空间科学与应用[M].北京:科学出版社,2001.
[2] 郭伟,张晓辉.回波模拟器在雷达高度计地面测试和定标中的应用[J].遥感技术与应用,2005,20(1):178-181.
[3] 郭伟,姜景山,刘和光.海面回波模拟器方案设计[J].遥感技术与应用,2000,15(2):86-89.
[4] Brown G S. The Average Impulse Response of A Rough Surface and Its Applications[J].IEEE Transactions on Antennas and Propagation, 1977, AP-25(1):67-74. |
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