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An automated sensing and control system (hardware and software) was developed for real-time spot-application of granular fertilizer in mowed wild blueberry fields. The custom hardware system was incorporated into a commercial pneumatic granular fertilizer spreader. Custom software for the sensing and control system was developed by combining color co-occurrence matrix based texture analysis and g-ratio...
Many wideband antennas have been developed over the years in order to meet such as UWB and radar applications. In this paper, we first have compared a number of broadband dipole antennas. Based on the knowledge gained, a new broadband dipole antenna on top of a conducting ground plane (a reflector) is then proposed and investigated with the aid of a commercial electromagnetic simulation package. The...
Many UWB antennas have been developed for the emerging wireless communications and radio positioning applications. However, how to measure these antennas accurately and efficiently (especially for the radiation pattern, gain and efficiency) over the broad frequency band is a challenging task. In this paper, we report some recent findings obtained by three organisations using different facilities to...
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