A Miniaturized Microwave-Laser Composite Detection Radar with Common Aperture of Antennas

Abstract

The invention provides a miniaturized microwave laser composite detection radar with a common aperture of the antenna, including a microwave laser common aperture antenna subsystem, a microwave radar subsystem, a laser radar subsystem and a system management and signal processing subsystem. Continuous wave cloud radar and multi-wavelength Raman polarization lidar perform software and hardware composite and joint inversion to realize remote sensing detection of fine structures of clouds and aerosols. The echo signals of laser and microwave backscattered by clouds and aerosols are converted by microwave laser The composite detection radar is received by a common aperture antenna, and the microwave and laser echoes are separated through the space separation technology. The microwave and laser echo signals are detected and processed through the microwave detection channel and the optical detection channel respectively, and then the microwave and laser echo signals are detected and processed through the microwave detection channel and the optical detection channel. Microwave radar and lidar system control and data inversion software, realize the functions of microwave laser composite radar control, status monitoring, echo signal and data processing and product display.

Description

technical field [0001] The invention relates to the technical field of measurement and testing, in particular to a miniaturized microwave-laser composite detection radar with a common aperture of antennas. Background technique [0002] Atmospheric clouds and aerosols play an important role in global climate and environmental changes. Accurate cloud and aerosol information can deepen people's understanding of the Earth's energy budget and improve the accuracy of numerical weather forecasting, which is of great significance to climate research. At the same time, a detailed understanding of the spatial distribution of aerosol characteristics is also a prerequisite for understanding pollution mechanisms and controlling pollution. [0003] Cloud and aerosol remote sensing detection technology mainly includes passive detection technology such as imaging spectrometer, lidar technology and microwave radar technology. Compared with passive remote sensing detection technology, lidar...

AI Technical Summary

Problems solved by technology

From October 2016 to March 2018, the ground-based LACROS system in Cyprus conducted cloud, aerosol and precipitation experiments for 18 months using a variety of remote sensing equipment, the main advanced remote sensing equipment including an aerosol LiDAR, a millimeter-wave cloud radar for mixed phase and ice cloud profile measurement and ice water content measurement; China Meteorological Administration is organizing a super-large city test project, in which the cloud observation mainly uses the same test site ground millimeter Boyun radar and lidar conduct collaborative remote sensing observations; the microwave laser collaborative detection schemes adopted in the above projects all adopt the same-site collaborative observation design of microwave radar and lidar, which does not solve the problem of simultaneous high-temporal and spatial simultaneous detection of the same cloud cluster at the same time and in the same direction

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