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This paper describes a radar microphone for studying incidental and deliberate insect sounds. It was specifically designed to record the sounds coming from honey bees inside a beehive. The sensor is based on a Doppler radar measuring the vibrations of a high dielectric object, such as a bee. It is shown that if the vibrational amplitude is much less that the radar wavelength, the frequency of the...
A wideband harmonic radar for tracking very small wood frogs in a high clutter environment is described. The one watt peak power radar transmitted in the 5.8 GHz ISM band and received in the 12 GHz satellite TV band. By transmitting a 150 MHz bandwidth linear frequency modulated waveform and exploiting the frequency doubling property of the harmonic tag to increase the bandwidth to 300 MHz, a range...
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