Device-free counting via wideband signals
WebMar 9, 2024 · Device-Free Counting via Wideband Signals Abstract: Counting people and things (targets) in a monitored area, also known as crowd-counting, enables several … WebOne approach for activity recognition is device-free activity recognition using radio signals [6], [7]. In this approach, radio devices are placed in the periphery of a monitored area. A transmitter sends a series of packets. The signals bounce off the environment (walls, objects, humans, etc.) and arrive at the receiver.
Device-free counting via wideband signals
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WebAug 7, 2024 · In this paper, we proposed device-free target counting using physical layer channel information from a WiFI-MIMO network in the space-frequency domain. Multidimensional statistical channel features are introduced and an ensemble classifier based on machine learning tools is detailed to efficiently use the multidimensional CSI … WebApr 11, 2024 · These recent years have witnessed the importance of indoor localization and tracking as people are spending more time indoors, which facilitates determining the location of an object. Indoor localization enables accurate and reliable location-based services and navigation within buildings, where GPS signals are often weak or unavailable. With the …
WebThis paper proposes a mathematical framework for the design of device-free counting systems. First, a maximum a posteriori algorithm is developed for … WebConfiguring the ADMV8818 as a 6 GHz to 9 GHz band-pass filter would allow for a wideband signal to pass through while properly knocking down the level of the blocker before it can cause harmonic issues to crop up in the nonlinear elements of …
WebThis paper proposes a mathematical framework for the design of device-free counting systems. First, a maximum a posteriori algorithm is developed for counting via … WebWe can define wideband and narrow-band applications by their fractional bandwidth where the fractional bandwidth is defined as ( fn = highest frequency, f1 = lowest frequency, and fc = center frequency). When the fractional bandwidth goes above 1, the application can be deemed wideband.
WebMar 9, 2024 · This paper proposes a mathematical framework for the design of device-free counting systems. First, a maximum a posteriori algorithm is developed for counting …
WebNov 15, 2024 · To acquire a more effective crowd counting approach, a device-free counting method based on Channel Status Information (CSI) is proposed. The wavelet … phison s11 ssdWebMar 4, 2015 · Wideband communication is almost exclusively done in higher frequencies (I'd say 433MHz+) as it's easier to design integrated circuits which have wider filters Common modulation techniques are OFDM, GMSK, N-PSK and QAM-N in combination with frequency hopping Examples of wideband communication are wireless networks: Wifi, … tss asfaltoWebThe ADI portfolio of wideband RF data acquisition and signal processing components, signal chains, and platform modules, contain the industry's highest-performing solutions for digitizing DC - 2+ GHz wideband RF signals for a variety of high-performance and demanding applications, such as RF instrumentation, defense electronics, and … tssa south africaWebThe channelizer splits a wide bandwidth into smaller ones to separate signals of interests from noise and interferers so that low SNR and time sensitive signals can be reliably detected in individual subchannels. Most digital channelized receivers consist of a filter bank and fast Fourier transform (FFT). tss assemblyWebDevice-Free Counting via Wideband Signals. IEEE Journal on Selected Areas in Communications, 35(5), 1163–1174. doi:10.1109/jsac.2024.2680978 … phison s11主控WebUsing Noise Dither to Increase an ADC’s Spurious-Free Dynamic Range. Spurious-free dynamic range (SFDR) is the ratio of the rms signal amplitude to the rms value of the peak spurious spectral component. Two fundamental limitations to maximizing SFDR in a high-speed ADC are the distortion produced by the front-end amplifier and the sample-and ... tss asoWebFeb 6, 2015 · In practice, UWB signals are able to effectively measure distance between two devices with 5- to 10-cm accuracy, compared to roughly 5-m accuracy for Wi-Fi and Bluetooth. When implemented in a ... phison s12