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Keywords: noise
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Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. March 2011, 133(2): 021009.
Published Online: March 9, 2011
...Heather M. Chemistruck; Robert Binns; John B. Ferris Modern terrain measurement systems use an inertial navigation system (INS) to measure and remove vehicle movement from laser measurements of the terrain surface. Instrumental and environmental biases inherent in the INS produce noise and drift...
Journal Articles
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. November 2009, 131(6): 061005.
Published Online: November 10, 2009
... with minimum passenger discomfort. This requires control of the electric motor to start and stop the engine quickly and smoothly, without compromising the vehicle noise, vibration, and harshness signature. The issue becomes more critical in the case of diesel hybrids, as the peak compression torque is much...
Topics: Engines, Torque
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. November 2007, 129(6): 825–836.
Published Online: March 16, 2007
...Tae-Hyoung Kim; Xiaoguang Zheng; Toshiharu Sugie This paper considers the problems of both noise tolerant iterative learning control (ILC) and iterative identification for a class of continuous-time systems with unknown bounded input disturbance and measurement noise. To this aim, we first propose...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. March 2007, 129(2): 136–143.
Published Online: July 15, 2006
...Weiwei Li; Robert E. Skelton; Emanuel Todorov This paper presents estimation design methods for linear systems whose white noise sources have intensities affinely related to the variance of the signal they corrupt. Systems with such noise sources have been called finite signal-to-noise (FSN) models...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. March 2005, 127(1): 140–145.
Published Online: May 10, 2005
...Chen Haosheng; Chen Darong To identify the micro helicopter’s yaw dynamics, the system identification method is used and is proved to be suitable according to the validation results. In order to strengthen the information of the dynamics and reduce the effect of the noise when processing...
Journal Articles
Article Type: Article
J. Dyn. Sys., Meas., Control. December 2004, 126(4): 848–859.
Published Online: March 11, 2005
... part of the signal is distorted by nonlinearity and the low amplitude part is indistinguishable from noise. The distorted output or sensed signal may no longer represent the original input signal due to the presence of high and low frequency foreign spikes in its frequency spectrum. This situation...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. September 2005, 127(3): 433–442.
Published Online: August 24, 2004
... principle of the maglev stage are presented. We designed and implemented stabilizing controllers for 6-DOF motion control with the dynamic model based on the actuator analysis. Test results showed nanoscale step responses in all six axes with 2 nm rms horizontal position noise. A noise propagation model...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. September 2003, 125(3): 287–293.
Published Online: September 18, 2003
...S. R. Habibi; R. Burton This paper presents a new strategy for state estimation. The strategy may be applied to linear systems and is referred to as the variable structure filter. The filter is considered for discrete-time systems subject to random disturbances and measurement noise. It requires...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. June 2003, 125(2): 224–228.
Published Online: June 4, 2003
...K. Yu. Polyakov; E. N. Rosenwasser; B. P. Lampe The problem of H 2 -optimal reconstruction of a continuous-time signal using a stable sampled-data filter is considered. The signal is corrupted by additive noise and is measured with preview of τ, i.e., it is known in advance over the interval τ...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. March 2003, 125(1): 19–26.
Published Online: March 10, 2003
..., and the related technical issues such as stability and noise sensitivity are addressed. The combined observer setting is also extended to stochastic systems, and the discrete Kalman filter is reformulated by including the perturbation estimate update process. Numerical examples and experimental results validate...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. March 2003, 125(1): 11–18.
Published Online: March 10, 2003
... parameters on a slow time scale, with time scale separation specified by a small parameter ε. Parameter estimates converge asymptotically like e − ε t where t is time, provided the data is such that a certain averaged coefficient matrix is positive definite. The method is robust: small model errors and noise...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. December 2002, 124(4): 599–605.
Published Online: December 16, 2002
... with the theoretical analysis. Tracking accuracy under the presence of Brownian noise and capacitive position sensing noise is also analyzed by using a variance propagation equation for the nonlinear dynamic system utilizing a first-order Taylor series approximation. The theoretically estimated resolution is also...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. September 2002, 124(3): 364–374.
Published Online: July 23, 2002
... are partially known. The unknown dynamics are constructively approximated using neural networks. The proposed algorithm is based on the two-step prediction-update approach of the Kalman Filter. The algorithm accounts for the unmodeled nonlinear dynamics and makes no assumptions regarding the system noise...
Journal Articles
Article Type: Technical Papers
J. Dyn. Sys., Meas., Control. June 2001, 123(2): 272–278.
Published Online: February 1, 2001
.... Conceptually, methods of attacking such problems are well developed and satisfactory solutions have been obtained if the input signals are noise free and the dynamic model is perfect. In this ideal case, an inverse solution exists, is unique, and depends continuously on the initial data. However, the inverse...