Essays about: "Wing-beat frequency"

Found 4 essays containing the words Wing-beat frequency.

1. 1. Implementation of Scheimpflug Lidar for Entomological Monitoring of Bark Beetles

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : Jonathan Peterson; [2020]
   Keywords : Scheimpflug Lidar; Lidar; Bark beetles; Forestry; Entomological monitoring; Physics and Astronomy;

   Abstract : Bark beetles are responsible for great damages to Swedish forestry every year. This project focuses on a method of entomological lidar called Scheimpflug lidar to detect and monitor bark beetles. Scheimpflug lidar uses old techniques from photography to achieve a deep field of focus to resolve objects over long distances. READ MORE

3. 2. Method for coupling modulatedscattered light from free flyinginsects to harmonics and theirrelative phases

   University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk statistik

   Author : Martin Patricks; Ludvig Anderberg; [2020]
   Keywords : frequency estimation; phase estimation; matched phase reassignment; entomologic lidar; modulation spectroscopy; scattered light; Technology and Engineering;

   Abstract : Using laser it is possible to measure the backscattered light from insects. The resulting signal can then be analysed in order to potentially determine the species of the insect. READ MORE

4. 3. Unbiased pitch detection and phase estimation in entomological lidar

   University essay from Lunds universitet/Matematisk statistik

   Author : Johan Fogelmark; [2019]
   Keywords : Entomological lidar; wing beat frequency estimation; phas; Mathematics and Statistics;

   Abstract : Good insect monitoring is important for both disease vector control and e?cient usage of pesticides in farming. Entomological lidar has been proven useful for detecting and monitoring insects. For every insect that transit the laser beam a backscatter signal containing species-specific information is obtained. READ MORE

5. 4. Unbiasing entomological kHz Scheimpflug LIDAR data

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : Alexandra Andersson; [2018]
   Keywords : Entomological LIDAR; Insect detection; Wing-beat frequency; Unbiasing of analysis model; Physics and Astronomy;

   Abstract : Insects can be mapped using a method called Scheimpflug Lidar (LIght Detection And Ranging). Sending out light in the near infrared range and detecting the backscattered echo, it is possible to resolve flying organisms in range and time. Insect observations can be distinguished from the background signal through adaptive thresholding. READ MORE