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Tailings impoundment failures may lead to catastrophically fatal, environmental and financial consequences. However, field investigation and geotechnical analysis are limited by sparse instrumentation and high cost. Here we use time-series Interferometric Synthetic Aperture Radar (InSAR) method to map out the settlement over the entire tailings impoundment area in the vicinity of Great Salt Lake (Utah)...
Compared with pseudo-noise (PN) sequences, chirp signals have obvious advantages in acquisition time and tracking performance in the field of telemetry, track, and command (TT&C) with the large Doppler tolerance. In this paper, an effective tracking loop for chirp spread spectrum communication is proposed, which can realize chirp signals modulated by binary phase shift keying (Chirp-BPSK) coherent...
Beam forming (BF) is a pre-signal processing technique used in sensor arrays for directional signal transmission or reception. It produces directional BF by adjusting the weighted coefficient of each array element to obtain obvious array gain. At present, the most common BF algorithms are eigen-based Beam firming (EBB) algorithm and grid of beam (GOB) algorithm, but these two algorithms still have...
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