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This paper presents the development of a newly designed wireless piezoelectric (PZT) sensor platform for distributed active structure health monitoring (such as aircraft wings and bridges). The developed wireless PZT-sensor network features real-time data acquisition with high sampling rate up to 12.5MSPS (sample per second), distributed lamb-wave data processing and energy saving by reducing the...
Perception of the environment is an important task for intelligent vehicles, and to effectively perceive the environment, multiple sensors are often employed. In this paper, we propose to integrate the perceived data from 3D LIDAR and stereo camera using particle swarm optimization algorithm, without the aid of any external calibration aids. The proposed optimisation algorithm automatically calibrates...
Class discovery, which aims to identify the underlying category structure, is an important issue in pattern recognition and knowledge discovery. The key task in class discovery is to estimate the number of classes. Classical estimation approaches usually face the problems of low accuracy, high complexity, or difficulty in choosing an appropriate penalty function. In this paper, an effective class...
Respiratory rate (RR) can often be extracted from electrocardiogram (ECG) or photoplethysmogram (PPG) by analyzing the variations of certain morphological features or the peak-to-peak time interval between them. In this paper, we use a novel method for estimating the RR from the sequence of the pulse transit time (PTT) from radial to the central aorta. To validate this algorithm, in-situ experiments...
Resolving power and performance of DOA estimation of array can be improved by using both temporal and spatial information. So the concept of temporal-spatial 2-dimension processing is developed. To solve the problem of frequency ambiguity in the conventional temporal-spatial 2-dimension processing, a novel 2-dimension MUSIC algorithm with jointly estimating "phase factor" and DOA is proposed...
Orthogonal wavelet packet modulation (OWPM) is a potential technique for achieving high bit rates required wireless access. Effective channel estimation can supply channel state information (CSI) at the receiver, the knowledge of which OWPM system performance relies on. The objective of this paper is to introduce an innovative channel estimation method with unequal interval pilots for OWPM system...
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