Entomological Radar Overview: System and Signal Processing

@article{Long2020EntomologicalRO,
  title={Entomological Radar Overview: System and Signal Processing},
  author={Teng Long and Cheng Hu and Rui Wang and Tianran Zhang and Shaoyang Kong and Weidong Li and Jiong Cai and Weiming Tian and Tao Zeng},
  journal={IEEE Aerospace and Electronic Systems Magazine},
  year={2020},
  volume={35},
  pages={20-32}
}
  • T. Long, Cheng Hu, T. Zeng
  • Published 2020
  • Environmental Science
  • IEEE Aerospace and Electronic Systems Magazine
Insect migration is a significant ecological phenomenon in nature, and difficult to directly observe because insects are small and fly hundreds of meters above the ground at night. Radar, working in all-weather and all-time conditions, remains one of the most effective tools for observing insect flight. This paper reviews the developments of radar systems and signal processing methods in radar entomology. Typical insect radar systems and parameter retrieval methods are presented, including that… 
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References

SHOWING 1-10 OF 35 REFERENCES
Insect flight speed estimation analysis based on a full-polarization radar
TLDR
The aerial density of migration could be measured by the scanning radar, while the flight speed, displacement direction, body orientation, and three cross-section parameters related to the size and shape of the insect could be obtained by the VLR, which can contribute significantly to the scientific research of insect migration.
Vertical-Looking Radar: A New Tool for Monitoring High-Altitude Insect Migration
Abstract Many insect species engage in high-altitude, wind-borne migration, often several hundred meters above the ground. At these heights they can use the wind to travel tens or hundreds of
A Method for Routine Monitoring of the Aerial Migration of Insects by Using a Vertical-Looking Radar
TLDR
It is shown that all parameters can be extracted from the complex Fourier transform of the returned radar signal, by using appropriate algorithms on a modern desk-top computer, which means that economic, automatic, and long-term monitoring of the density, direction of movement, orientation and composition of insect aerial faunas should now be possible.
Ascent and descent rates of high-flying insect migrants determined with a non-coherent vertical-beam entomological radar
ABSTRACT Vertical-beam radars employing non-coherent transmission and reception provide an effective means of detecting insects migrating at heights of hundreds of metres. Current units can determine
Signal Analysis for an Entomological Radar with a Vertical Nutating Beam
This report documents the signal analysis procedures developed at Cranfield University for ground based entomological radars. The radars use a nutating vertical beam, allowing target (individual
An Airborne Radar Technique for the Investigation and Control of Migrating Pest Insects
A new airborne radar technique has been developed and used during two seasons on three aircraft in Canada, to investigate the source areas, flight behaviour and areas of deposition of migrating
A millimetric radar to study the flight of small insects
Conventional 3 cm entomological radars have been successfully used for many years to observe the migratory flight of the larger insect species, but the range at which these radars can detect
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