Intelligent Sensing High Resolution Spaceborne SAR System Design
| Autor: | Li Yang, Qingjun Zhang, Kui Peng, Kun Li, Zhongjiang Yu, Zhaojing Cui, Tengfei Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Synthetic aperture radar
Data processing Computer science Payload Electromagnetic environment 05 social sciences Real-time computing 0211 other engineering and technologies Control reconfiguration 02 engineering and technology Signal 050105 experimental psychology Systems design 0501 psychology and cognitive sciences Antenna (radio) 021101 geological & geomatics engineering |
| Zdroj: | 2018 Eighth International Conference on Instrumentation & Measurement, Computer, Communication and Control (IMCCC). |
| DOI: | 10.1109/imccc.2018.00337 |
| Popis: | In this paper, we firstly analyze some disadvantages in current spaceborne synthetic aperture radars (SARs). Because the traditional processing pattern of "satellite data acquisition-ground station receiving and processing-data distribution-professional application" can't satisfy the time-effective flexible requirements of environment and disaster emergency response monitoring, this paper proposes the concept of "intelligent sensing high resolution spaceborne SAR system", design the system framework with intelligent remote sensing and onboard real-time data processing ability, which consists five modules: (1) afore-looking pre-judgment module for space electromagnetic environment and observation scene; (2) an adaptive transmitted signal formation module; (3) an adaptive antenna reconfiguration module; (4) an adaptive returns data sampling module; (5) an onboard real-time data processing and analysis module. It also introduces the work process flow involved. Then, we conclude four key technologies, they are: (1) observation scene afore-looking pre-judgment technology; (2) adaptive SAR payload parameter setting technology; (3) adaptive transmitted signal formation technology; (4) onboard real-time data processing and information generation technology. |
| Databáze: | OpenAIRE |
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