Device-free counting via wideband signals
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 … Webframework for the design of device-free counting systems. First, a maximum a posteriori algorithm is developed for counting via wideband signal backscattering by relying on …
Device-free counting via wideband signals
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WebApr 14, 2024 · Thermal Magnetic Resonance (ThermalMR) is a theranostic concept that combines diagnostic magnetic resonance imaging (MRI) with targeted thermal therapy in the hyperthermia (HT) range using a radiofrequency (RF) applicator in an integrated system. ThermalMR adds a therapeutic dimension to a diagnostic MRI device. Focused, targeted … WebUltra-wideband, or UWB, is a short-range RF technology for wireless communication that can be leveraged to detect the location of people, devices, and assets with unrivaled precision. Like other communication protocols including Bluetooth and Wi-Fi, UWB can be used to transmit data between devices through radio waves.
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. WebOct 22, 2024 · Essentially, the dataset consists of Ultra-Wideband (UWB) data in the form of Channel Impulse Response (CIR), acquired via a Commercial Off-the-Shelf (COTS) UWB equipment. Approximately 1.6 hours ...
WebAug 20, 2024 · In radio-frequency (RF)-based device-free localization (DFL), the number of sensors acting as RF transmitters and receivers is crucial for accuracy and system costs. Two promising approaches for DFL have been identified in the past: radio tomographic imaging (RTI) and multi-static radar (MSR). RTI in its basic version requires many … 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 …
WebThis paper proposes a mathematical framework for the design of device-free counting systems. First, a maximum a posteriori algorithm is developed for …
WebFeb 14, 2024 · We propose a device-free crowd counting method using deep neural networks and WiFi CSI, aiming to count the number of people in a space. The overview … small bugs in kitchen drawersWebNov 17, 2024 · Decades-old ultra-wideband technology is enjoying a renaissance in secure access and beyond Like Bluetooth and Wi-Fi, ultra-wideband (UWB) is a wireless technology that uses radio waves for communications. By operating at a very high frequency and using a wide spectrum, UWB outperforms other wireless technologies in terms of … solve rubik\u0027s cube fish moveWebUsing 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 ... small bugs kitchenWebCrowd counting is conducted in a device-free way without involvement of mobile devices; 3. Apply DNN regression to establish the relationship between CSI variations and people … small bugs in orchid soilWebCounting people and things (targets) in a monitored area, also known as crowd-counting, enables several applications in diverse scenarios, including smart building, intelligent transportation, and public safety. In many scenarios, device-free systems relying on the signal backscattering from targets are preferred to device-based systems relying on the … solver used in canteraWebMar 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, … small bugs in tubWebMar 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 applications in diverse scenarios, including smart building, intelligent … small bugs in soil