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This paper presents a 16-channel closed-loop neuromodulation SoC for human seizure control. The SoC includes a 16-ch signal acquisition unit, a bio-signal processor, a 16-ch adaptive stimulator, and wireless telemetry. The signal acquisition unit achieves 3.78 NEF and shares electrodes with stimulator. The seizure detection latency is 0.76s and delivered 0.5–3mA biphasic current stimulation. The SoC...
WSNs are a physical impossibility to be deployed into the area of absolute plane in the context of real-world applications. For all kinds of applications in WSNs accurate location information is crucial. In this article, we focus on 3D location accuracy in WSNs. We quantify the estimation accuracy for the TOA measurements by deriving the Cramer-Rao bound (CRB), and discuss the performance in two application...
Many localization methods for wireless sensor networks (WSN) have been proposed by far. These methods are usually aimed at how to locate unknown nodes or how to improve performance of localization under a certain density of anchor nodes. However, localization method for anchor nodes is limited to GPS or hand-placing method merely. It is imperative to explore another method that is efficient and cost-effective...
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