Reception Optimization Strategies for UHF Mobile Beacons

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Reception optimization strategies seek to improve performance of directional signals to a receiver location. When performance improves, transmitters may operate with a lower power requirement and significantly reduce detectability through direction-finding attempts. Combined with Direction-of-Arrival estimation, a uniform linear array is used to optimize reception of mobile telemetry signals in the 466 MHz range. A time-delay beamsteering algorithm is implemented on a dipole antenna array to receive in the direction of an estimated signal with an overall gain of 3 dBi. A similar approach is simulated using diversity analysis with a signal-to-noise improvement of 7dBi. This study validates the aforementioned methods for directional selectivity using commercial-off-the-shelf configurations with the popular RTL-SDR dongle.
Array signal processing, Transmitting antennas, Radio transmitters, Signal processing algorithms, Receiving antennas, UHF antennas, Telemetry
N. Pearce, K. J. Duncan and G. B. Popko, "Reception Optimization Strategies for UHF Mobile Beacons," 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI), Singapore, Singapore, 2021, pp. 959-960, doi: 10.1109/APS/URSI47566.2021.9704422.