Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Matthias Pätzold"'
Publikováno v:
Sensors, Vol 23, Iss 13, p 5810 (2023)
RF sensing offers an unobtrusive, user-friendly, and privacy-preserving method for detecting accidental falls and recognizing human activities. Contemporary RF-based HAR systems generally employ a single monostatic radar to recognize human activities
Externí odkaz:
https://doaj.org/article/305d1922fab44df8890e498bab43b8b0
Publikováno v:
Applied Sciences, Vol 12, Iss 4, p 1825 (2022)
In this paper, we highlight and resolve the shortcomings of single-input single-output (SISO) millimeter wave (mm-Wave) radar systems for human activity recognition (HAR). A 2×2 distributed multiple-input multiple-output (MIMO) radar framework is pr
Externí odkaz:
https://doaj.org/article/ceb99bdcd6304737bb124a88a758acb7
Autor:
Sahil Waqar, Matthias Pätzold
Publikováno v:
Sensors, Vol 21, Iss 22, p 7496 (2021)
In this paper, we analyze and mitigate the cross-channel interference, which is found in multiple-input multiple-output (MIMO) radio frequency (RF) sensing systems. For a millimeter wave (mm-Wave) MIMO system, we present a geometrical three-dimension
Externí odkaz:
https://doaj.org/article/0e7a1f24fbcb464599a422216f926454
Publikováno v:
Sensors, Vol 20, Iss 4, p 1049 (2020)
This paper is about designing a 3D no n-stationary wideband indoor channel model for radio-frequency sensing. The proposed channel model allows for simulating the time-variant (TV) characteristics of the received signal of indoor channel in the prese
Externí odkaz:
https://doaj.org/article/4122c06f9a284da9a1fb3a95146bf97e
Publikováno v:
Sensors, Vol 19, Iss 16, p 3557 (2019)
While aging is a serious global concern, in-home healthcare monitoring solutions are limited to context-aware systems and wearable sensors, which may easily be forgotten or ignored for privacy and comfort reasons. An emerging non-wearable fall detect
Externí odkaz:
https://doaj.org/article/16d952e572ce4b16811ec5a20a08dbfa
Autor:
Nurilla Avazov, Matthias Pätzold
Publikováno v:
Modelling and Simulation in Engineering, Vol 2012 (2012)
We propose a wideband multiple-input multiple-output (MIMO) car-to-car (C2C) channel model based on the geometrical street scattering model. Starting from the geometrical model, a MIMO reference channel model is derived under the assumption of single
Externí odkaz:
https://doaj.org/article/0fbff8c1eeee4723b9c7571449773550
Publikováno v:
Modelling and Simulation in Engineering, Vol 2012 (2012)
The rapid technological development in the field of wireless communications calls for devices capable of reproducing and simulating the behavior of the channel under realistic propagation conditions. This paper presents a hardware fading channel simu
Externí odkaz:
https://doaj.org/article/87180c2f1fda44039f1fd8e07ed2ad08
Publikováno v:
Modelling and Simulation in Engineering, Vol 2012 (2012)
Externí odkaz:
https://doaj.org/article/c739d4ff7571475b931c1d58a666ee13
Autor:
Matthias Pätzold, Batool Talha
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2011 (2011)
Externí odkaz:
https://doaj.org/article/ebed1659d0bc47829c06fa3688488da9
Publikováno v:
Nonlinear Dynamics. 111:11297-11313
We present a first-order recursive approach to sensitivity analysis based on the application of the direct differentiation method to the inverse Lagrangian dynamics of rigid multibody systems. Our method is simple and efficient and is characterized b