Water-pollution microwave active-passive compound detection method and device

A composite detection, active and passive technology, applied in the field of water pollution monitoring, can solve problems such as inability to share platforms to work at the same time, large mutual interference, electromagnetic incompatibility of active and passive composite detection technology, etc., to improve scientificity and accuracy, and reduce volume. Weight, effect of reduced radar transmit power requirements

Pending Publication Date: 2018-05-04
NANJING UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0014] In short, the problems existing in the existing technology are: the active-passive composite detection technology used for water pollution monitoring is electromagnetically incompatible, has large mutual interference, and cannot work on the same platform at the same time

Method used

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  • Water-pollution microwave active-passive compound detection method and device
  • Water-pollution microwave active-passive compound detection method and device

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Embodiment Construction

[0036] Such as figure 1 As shown, the microwave active and passive composite detection method for water pollution of the present invention comprises the following steps:

[0037] (10) System initialization: power on the system and connect to Unicom, test whether the working performance of active and passive modules is normal, respectively use the standard calibration body to calibrate the active channel, and use the standard high and low temperature blackbody to calibrate the temperature of the passive channel;

[0038] (20) Active scanning: the detection platform collects and stores the target data of the water pollution area, and the distance information and scattering information in the active information are stored in the target property database;

[0039] (30) Passive scanning: Active scanning collects the brightness temperature and voltage values ​​of passive microwave radiation at the same time, converts them into antenna temperature values ​​after system calibration, s...

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Abstract

The invention discloses a water-pollution microwave active-passive compound detection method and device. The method includes the following steps: (10) system initialization, (20) active scanning, (30)passive scanning, (40) determination of target characteristics, (50) target distribution determination and (60) real-time monitoring. The device includes an antenna system (1), an X-band radar transmitter (2), a circulator (3), an X-band radar receiver (4), an active/passive switch (5), a Ka-band radiometer receiver (6), and a modulator (7) and an information generation and collection system (8).The antenna system (1) is connected to the X-band radar transmitter (2) and the X-band radar receiver (4) through the circulator (3), and the Ka-band radiometer receiver (6) is directly connected with the antenna system (1). The water-pollution microwave active-passive compound detection method and device have good electromagnetic compatibility, small mutual interference, and can work together atthe same time by sharing a platform.

Description

technical field [0001] The invention belongs to the technical field of water pollution monitoring, in particular to a water pollution microwave active and passive composite detection method and device which have good electromagnetic compatibility, small mutual interference and can work simultaneously on a shared platform. Background technique [0002] With the requirements of environmental protection and sustainable development, the demand for real-time high-resolution detection of water areas is becoming more and more urgent. Due to the advantages of good real-time performance and long-term uninterrupted detection, remote sensing technology is more and more used in the field of water pollution detection. [0003] Because water surface vegetation can cause water pollution and can also be used to control water pollution, water surface vegetation is an important research object in water pollutants. [0004] Monitoring the water pollution area by means of remote sensing can ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S13/89G01S13/86G01N21/17
CPCG01N21/17G01S13/86G01S13/88G01S13/89G01N2021/1793
Inventor 张光锋高远于畅畅
Owner NANJING UNIV OF SCI & TECH
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