China completed the first measurement of airborne SAR system

[ China Instrument Network Instrument Development ] Recently, the National Surveying and Mapping Geographic Information Metering Station organized the first airborne SAR system measurement and detection task, which is the first case in China, marking China's independent and independent SAR system detection and measurement capabilities. In November 2017, the National Surveying and Mapping Geographic Information Measuring Station was established by the National Photoelectric Distance Measuring Instrument Testing Center of China Academy of Surveying and Mapping. As the legal metrological verification agency authorized by the AQSIQ, it mainly undertakes surveying and mapping geographic information testing equipment nationwide. Verification, calibration, and testing tasks.

The Synthetic Aperture Radar (SAR) system is capable of achieving high-resolution radar images of the target area in an all-weather, all-weather, and wide-area range, regardless of conditions such as illumination and climate. It is unique compared to other image acquisition devices. Advantages have broad application prospects in the fields of natural resource survey and monitoring, geological exploration and ecological protection.

In recent years, airborne remote sensing sensors such as airborne LiDAR systems, SAR systems and multi-spectral cameras have developed rapidly. To meet and meet the practical needs of aerial remote sensing sensors, it is urgent to break through the measurement and detection capabilities of SAR systems and establish a sound detection system for aerial remote sensing sensors. . The national surveying and mapping geographic information measurement closely combines the development trend of instrument and equipment. It focuses on the core technologies such as imaging resolution, measurement accuracy and mapping width of airborne SAR system, strengthens research, researches detection methods, sets test standards, and builds detection technology systems. The test test verifies the feasibility of the airborne SAR system technical indicator detection method. It successfully completed the airborne SAR system detection task for the first time, breaking the detection capability of the domestic metrology detection organization for the airborne SAR system, and developing the airborne SAR system for the follow-up. The industry standards provide technical support and lay the foundation for the establishment and improvement of China's aviation remote sensing system.

It is reported that the National Surveying and Mapping Geographic Information Metrology Station is the only national statutory testing and measuring institution in the field of surveying and mapping geographic information, facing the needs of the construction of a unified survey and monitoring system for modern natural resources, keeping up with the development trend of new technologies and new products, and actively developing various sensor testing methods. The research has initially possessed the ability to detect equipment such as airborne SAR systems, mobile measurement systems, digital aerial photography systems, and laser radar systems.

(Original title: China completed the first measurement of airborne SAR system)