This thesis evaluates the possibilities of determining the flight direction of insects by
analysing the wingbeat modulation pattern of the backscattered sunlight from insects. The …

Most reported optical recorders of the wingbeat of insects are based on the so-called
extinction light, which is the variation of light in the receiver due to the cast shadow of the …

Identification of agricultural pest insects is an important aspect in insect research and
agricultural monitoring. We have performed a methodological study of how spectroscopic …

Quantitative investigation of insect activity in their natural habitat is a challenging task for
entomologists. It is difficult to address questions such as flight direction, predation strength …

To make biologically useful interpretations of the echo signals from an entomological radar
(a radar designed and operated to observe insects in flight), it is necessary to relate basic …

The backscattering characteristics of various types of insects found in the lower atmosphere
were measured and the results are reported in this paper. The magnitudes of the insect …

Due to the growing awareness that insects' diversity and populations are in decline, there is
an increased need for monitoring insects. Entomological lidars and photonic sensors can …

In recent years, the field of remote sensing of birds and insects in the atmosphere (the aerial
fauna) has advanced considerably, and modern electro-optic methods now allow the …

Jean Henri Fabre, the great 19th century French entomologist, in his classic work on the
great peacock moth, established that certain species of moths could locate their mates over …

Up till now, measurement of the biological parameters of insects traversing the beam of an
entomological radar has been based on the assumption that the insects maintain a …