Results 261 to 270 of about 230,763 (311)

Conopulse Radar Angle Tracking Accuracy

IEEE Transactions on Aerospace and Electronic Systems, 1980
An analysis is given of the tracking accuracy of a conopulse radar that angle-tracks on target echo pulses. The analysis includes effects of noises in both sum and difference channels, the effect of the tracking range gate's duration, and applies to any shape of radio frequency (RF) pulse envelope.
Peyton Peebles, Hajime Sakamoto
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NOx Tracking Parameter Accuracy

2021
<div class="section abstract"> <div class="htmlview paragraph">This SAE Information Report provides SAE’s recommendations for meeting the requirements for REAL NOx accuracy demonstration and for the implementation of REAL NOx binning requirements as defined in OBD regulations 13 CCR 1971.1 and 13 CCR 1968.2.</div></div>
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NOx Tracking Parameter Accuracy

2022
<div class="section abstract"> <div class="htmlview paragraph">This SAE Information Report provides SAE’s recommendations for meeting the requirements for REAL NOx accuracy demonstration and for the implementation of REAL NOx binning requirements as defined in OBD regulations 13 CCR 1971.1 and 13 CCR 1968.2.</div></div>
openaire   +1 more source

Tracking performance evaluation: track accuracy in dense target environments

SPIE Proceedings, 1990
ABSTRACT This paper is generally related to analytic methods for evaluating tracking performance, in par-ticular for predicting track accuracy in dense target environments. A very simple analytic expression is derived to predict the effects of mis-associations on track accuracy. The paper analyzes an optimal track-to-measurement assignment algorithm in
Shozo Mori, Kuo-Chu Chang, Chee-Yee Chong, Keh-Ping Dunn   +3 more
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Accuracy assessment protocols for electromagnetic tracking systems

Physics in Medicine and Biology, 2003
Electromagnetic tracking systems have found increasing use in medical applications during the last few years. As with most non-trivial spatial measurement systems, the complex determination of positions and orientations from their underlying raw sensor measurements results in complicated, non-uniform error distributions over the specified measurement ...
D D, Frantz, A D, Wiles, S E, Leis, S R, Kirsch   +3 more
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Improved accuracy tracking using synchronized Wiimote cameras

Proceeding of the 16th International Academic MindTrek Conference, 2012
A new method and a prototype system for optical tracking using camera sensors from Nintendo Wii remote controllers are introduced. The system is of very low cost and can easily be extended to cover large areas. By bypassing the native Bluetooth interface and increasing the image analysis rate, extraordinary real-time performance is achieved.
Kosola Heikki, Palovuori Karri, Vuorela Timo   +2 more
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Limitations on maximal tracking accuracy. I. Tracking step signals

Proceedings of 35th IEEE Conference on Decision and Control, 2002
Studies optimal tracking performance issues pertaining to finite dimensional, linear, time invariant feedback control systems. The problem under consideration amounts to determining the minimal tracking error between the output and input signals of a system, attainable by all possible stabilizing compensators. An integral square error criterion is used
null Jie Chen, null Li Qiu, O. Toker
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Tracking Accuracy & Error Analysis

1993
An important criterion for validating the seam tracking algorithm is establishing an upper bound on the tracking error during the entire seam tracking process. If the tracking error does not propagate from one cycle to the next then the stability of the seam tracking process is ensured.
Nitin R. Nayak, Asok Ray
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Asymmetrical Spatial Accuracy in 3D Tracking

Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 1994
This paper reports on asymmetrical spatial accuracy of human subjects in tracking of an object which moves randomly with 6 degrees-of-freedom (DOF) in a 3D environment. It was found that, for translational errors, RMS deviations in the depth (Z) direction were 40% higher than those in the horizontal (X) direction, for an experimental display which ...
Shumin Zhai, Paul Milgram
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High Accuracy Tracking of Underwater Objects

2008 Congress on Image and Signal Processing, 2008
Instantaneous frequency and time-delay measured accurately are important technologies for high precise underwater positioning. In order to prevent the leakage interference from other frequency channels, variability of instantaneous frequency sequence (VIFS) calculation and frequency estimations were adopted. The synchronous positioning model (spherical)
Juan Hui, Guo-long Liang, Bo Fan
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