Device and method for microwave active and passive composite detection

A composite detection, active and passive technology, applied in the field of microwave detection, to solve electromagnetic compatibility problems, improve detection accuracy, and avoid interference.

Active Publication Date: 2019-11-19
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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Problems solved by technology

[0006] In view of the defects in the prior art, the object of the present invention is to provide a device and method for microwave active and passive composite detection, to solve t

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  • Device and method for microwave active and passive composite detection
  • Device and method for microwave active and passive composite detection
  • Device and method for microwave active and passive composite detection

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0026] figure 1 The functional block diagram of the device for microwave active and passive composite detection provided by the present invention, such as figure 1 As shown, it includes: active radar and passive radiometer; the active radar is used to send radar signals and receive echo signals; the passive radiometer is used to receive radiation signals; wherein, the active radar and the passive radiometer The working frequency is different. When the active radar receives the echo signal, the passive ...

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Abstract

The invention provides a device and a method for microwave active and passive composite detection. The device comprises an active radar and a passive radiometer. The active radar is used for transmitting a radar signal and receiving an echo signal. The passive radiometer is used for receiving a radiation signal. The working frequencies of the active radar and the passive radiometer are different.When the active radar receives an echo signal, the passive radiometer starts the integral time and receives the radiation signal. When the active radar transmits a radar signal, the passive radiometerperforms integral shielding and does not receive the radiation signal. The electromagnetic compatibility problem of microwave active and passive composite detection is solved, and the detection precision of microwave active and passive composite detection is improved.

Description

technical field [0001] The invention relates to the technical field of microwave detection, in particular to a device and method for microwave active and passive composite detection. Background technique [0002] Soil moisture describes the water kept in the soil pores, and is an important source for human beings to obtain various living and production materials. Its powerful storage, replenishment and adjustment capabilities play a role in maintaining the healthy development of the ecological environment that human beings rely on for survival. . Timely soil moisture detection can be directly used in the monitoring of natural disasters such as floods and droughts. Long-term soil moisture monitoring can help improve the simulation quality of water, energy, and carbon exchange models between the earth and the atmosphere, and further improve various aspects of weather forecasting and climate prediction. The calculation accuracy of this numerical model is an important tracer fa...

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Application Information

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IPC IPC(8): G01N22/04G01S13/88G01V3/12
CPCG01N22/04G01S13/885G01V3/12
Inventor 栾英宏孙彦龙吕利清徐红新李秀伟刘瑞李丹李宁杰冯剑锋施未勋
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
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