This paper proposes an efficient scheme to track the time variant channel induced by multi-path Rayleigh fading in mobile wireless multiple input multiple output–orthogonal frequency division multiplexing (MIMO–OFDM) systems with null sub-carriers. In the proposed method, a blind channel response predictor is designed to cope with the time variant channel. The proposed channel tracking scheme c...

Keywords: Wireless sensor networks Doppler effect Kalman filter Track association Multiple targets a b s t r a c t This paper introduces an efficient rule-based algorithm for tracking multiple fast-moving ground vehicles in an acoustic Wireless Sensor Network (WSN). To reduce the level of power consumption, the acoustic sensor nodes in the WSN are assumed to be very simple in nature, having no ...

In this paper, we propose a Multi-View Convolutional Neural Network and Long Short-Term Memory (CNN-LSTM) network which fuses multiple “views” of the time-range-Doppler radar data-cube for human activity recognition. It adopts structure convolutional neural networks to extract optimal frame based features from time-range, time-Doppler range-Doppler projections data-cube. The CNN models are trai...

The data collected by a network of aeroacoustic and seismic sensors may be processed to localize the positions of ground vehicles, track the vehicles as they move, and identify the type of vehicle. The localization, tracking, and identification algorithms typically operate in parallel and with minimal sharing of information. The performance of the localization, tracking, and identification algo...

In non-cooperative bistatic synthetic aperture radar (SAR), the position of transmitter’s beam footprint should be detected and tracked in real-time to perform beam synchronization. Theoretical analysis shows that signal-tonoise ratio (SNR) of the reflected echoes from the observational scene is too low to apply the conventional detection and tracking method. According to the cross-correlation ...

Background Preeclampsia is a specific pregnancy syndrome. Early diagnosis and proper administration of preeclampsia can lead to improved maternal and neonatal outcome. We aimed to investigate the uterine artery Doppler ultrasound in predicting the preeclampsia in women with a high-risk pregnancy. Materials and Methods This analytic study was conducted on 160 primigravida women with gestational...

this paper deals with a globally convergent adaptive and sliding mode control of a cart-pole inverted pendulum for trajectory tracking in the presence of a bounded measurement noise and parameter uncertainty. two kinds of controllers have been used for evaluation of tracking error in presence of a bounded noise; as a result, we want to compare that at what time we can see the convergence of tra...

one of the main problems in wind energy conversion system (wecs) is how to achieve maxim­u­m output power in different wind speeds. maximum methods for maximum power point tracking in wind energy conversion syst­e­ms require the knowledge of system characteristics and mechanic sensors. so, using these methods practically will follow with high price and an abundant difficulties. in this paper, n...