Millimeter wave scanning entomological radar detection system and detection method

Abstract

The invention discloses a millimeter wave scanning entomological radar detection system and a millimeter wave scanning entomological radar detection method. The detection system comprises an antenna device, a transmitter, a receiver, a signal processor and a data acquisition terminal, wherein the antenna device is used for transmitting a microwave signal for detecting an insect and receiving the microwave signal reflected by the insect; the transmitter is used for producing a pulse modulated microwave signal for detecting the insect and transmitting the pulse modulated microwave signal for detecting the insect through the antenna device; the receiver is used for receiving the microwave signal reflected by the insect and processing the microwave signal; the signal processor is used for receiving, converting and processing the signal processed by the receiver, and acquiring insect intensity data; the data acquisition terminal analyzes and calculates the acquired insect intensity data and azimuth data to obtain the spatial distribution and time information of the insect. The millimeter wave scanning entomological radar detection system and the millimeter wave scanning entomological radar detection method provided by the invention are used for carrying out the real-time monitoring and the dynamic analysis of a migration process of important migratory injurious insects of rice so as to realize early-warning of insect pests.

Description

technical field [0001] The invention relates to the field of radar technology, in particular to a millimeter-wave scanning insect radar detection system and detection method. Background technique [0002] Existing insect radars can detect a variety of important agricultural migratory pests, but traditional scanning insect radars are impractical for long-term and automatic detection of pest population dynamics. Firstly, the scanning insect radar equipment is very complicated, not suitable for long-term automatic operation, and data analysis requires a lot of time and energy; secondly, the scanning insect radar has limited ability to identify types. In theory, when the beam is stationary, if the migrating insect individual If the stay time in the beam is long enough, the system can record the individual's wing-beating frequency. However, due to the overlap between individuals in the same direction, the wing-beating frequency of one individual will be affected by another indivi...

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Problems solved by technology

[0002] Existing insect radars can detect a variety of important agricultural migratory pests, but traditional scanning insect radars are impractical for long-term, automated detection of pest population dynamics

Firstly, the scanning insect radar equipment is very complicated, not suitable for long-term automatic operation, and data analysis requires a lot of time and energy; secondly, the scanning insect radar has limited ability to identify types. In

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