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In this paper, we proposed a new packet detection algorithm with high performance and low hardware complexity for chirp-spread-spectrum (CSS) in AWGN channel. There are two typical conventional packet detection algorithms. First, the conventional algorithm based on mixed-correlation (CABMC) has a good performance by using matched filter to remove unused band noise, but the algorithm has a high hardware...
We demonstrate an anchor-free mobile node localization system using Ymote, which is equipped with the IEEE 802.15.4a RF module based on chirp spread spectrum (CSS) technology. In contrast to conventional centralized systems, our system is fully distributed, hence scalable, and enables self-positioning in anchor-free environment. The localization system is implemented on the RETOS operating system.
The fusion of multiple computer aided detection/computer aided classification (CAD/CAC) algorithms has been shown to be effective in reducing the false alarm rate associated with the automated classification of bottom mine-like objects when applied to side-scan sonar images taken in the littoral environment. Real-time operation of the CAD/CAC fusion algorithms from Raytheon, Lockheed Martin, and NSWC...
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