Results 31 to 40 of about 82,398 (279)
International Journal of Distributed Sensor Networks, 2020 As the key technology for Internet of things, wireless sensor networks have received more attentions in recent years. Mobile localization is one of the significant topics in wireless sensor networks.
Nan Hu +5 more
doaj +1 more source
Wireless sensor indoor positioning based on an improved particle filter algorithm
International Journal of Distributed Sensor Networks, 2020 Positioning by wireless sensor network is one of its main functions and has been widely used in many fields. However, when signal propagation is hindered, serious errors, non-line-of-sight errors, occur.
Pan Feng +4 more
doaj +1 more source
Measurement results of transmit delay diversity for DVB-T networks [PDF]
, 2008 This paper describes work carried out by Brunel University and Broadreach systems (UK) to quantify the advantages that can be achieved if transmit diversity is applied to systems employing the DVB standard.
Di Bari, R
core +1 more source
Towards Non-Line-of-Sight Photography.
CoRR, 2023 The proposed method and dataset are required further ...
Peng, Jiayong +6 more
openaire +4 more sources
Improved Kalman filter indoor positioning algorithm based on CHAN
Tongxin xuebao, 2023 Due to the raising complexity of the indoor environment, the influence of the non-line-of-sight error is gradually increasing in indoor positioning.How to reduce the non-line-of-sight error in the indoor positioning environment is particularly ...
Rui JIANG +4 more
doaj +2 more sources
Indoor wireless channel modeling from 2.4 to 24 GHz using a combined E/H-Plane 2D ray tracing method [PDF]
, 2004 Future wireless systems are moving to high frequencies for additional bandwidth and frequency reuse. This makes it very important to have accurate and time-efficient models for system planning.
Lu, Dai, Rutledge, David
core +1 more source
IEEE Access, 2019 The fifth generation (5G) wireless network technology is set to be standardized by 2020, where the main goals are to improve capacity, reliability, and energy efficiency while reducing latency and massively increasing connection density.
Daniel Peethala +2 more
doaj +1 more source
Onsite Non-Line-of-Sight Imaging via Online Calibration
IEEE Photonics Journal, 2022 There has been increasing interest in deploying non-line-of-sight (NLOS) imaging systems for recovering objects hidden behind corners. Existing solutions need to calibrate the imaging system using auxiliary apparatus and additional detectors.
Zhengqing Pan +8 more
doaj +1 more source
A calibration scheme for non-line-of-sight imaging setups
Optics Express, 2020 The recent years have given rise to a large number of techniques for “looking around corners”, i.e., for reconstructing or tracking occluded objects from indirect light reflections off a wall. While the direct view of cameras is routinely calibrated in computer vision applications, the calibration of non-line-of-sight setups has so far relied on manual
Klein, Jonathan +3 more
openaire +3 more sources
Rooftop and indoor reception with transmit diversity applied to DVB-T networks: A long term measurement campaign [PDF]
, 2009 Although transmit Delay Diversity (DD) can provide a gain in indoor and other Non Line of Sight situations (NLOS), it can introduce degradation in rooftop reception. In fact, when the Ricean K factor of the channel is significantly high (e.g.
Arrinda, A +6 more
core +1 more source