Motorcycle Bank Angle Measurement Procedure

This paper presents a method for estimating road bank angle for land vehicle. When the vehicle is traveling on a lateral slope road, due to the effect of suspension, roll will be occur. While the ordinary method for the roll angle measurement is by gyro which is mounted on a vehicle body, the measured value of the roll angle includes not only the suspension’s deformation but also includes road bank angle. In order to obtain independent parameters, other methods must be used. First , we get the corresponding roll parameters of vehicle suspension through PSO by taking rotation test in the plane. Combined with parameters we get through inertial measurement module, a method is proposed to estimate the road bank angle. Finally, effectiveness of the method is verified through experiments.

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Effects of Compound K-Distributed Sea Clutter on Angle Measurement of Wideband Monopulse Radar

Mathematical Problems in Engineering ◽

10.1155/2017/2081718 ◽

2017 ◽

Vol 2017 ◽

pp. 1-19

Author(s):

Hong Zhu ◽

Yujian Pan ◽

Weiwei Wu ◽

Ning Tai ◽

Naichang Yuan

Keyword(s):

Probability Density Function ◽

Probability Density ◽

Density Function ◽

Measurement Procedure ◽

Angle Measurement ◽

Conditional Probability Density ◽

Sea Clutter ◽

Compound K ◽

Conditional Probability Density Function ◽

Probability Density Function Pdf

The effects of compound K-distributed sea clutter on angle measurement of wideband monopulse radar are investigated in this paper. We apply the conditional probability density function (pdf) of monopulse ratio (MR) error to analyze these effects. Based on the angle measurement procedure of the wideband monopulse radar, this conditional pdf is first deduced in detail for the case of compound K-distributed sea clutter plus noise. Herein, the spatial correlation of the texture components for each channel clutter and the correlation of the texture components between the sum and difference channel clutters are considered, and two extreme situations for each of them are tackled. Referring to the measured sea clutter data, angle measurement performances in various K-distributed sea clutter plus noise circumstances are simulated, and the effects of compound K-distributed sea clutter on angle measurement are discussed.

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ELEVATION ANGLE MEASUREMENT ABOVE THE SEA SURFACE USING THE ROOT-MUSIC METHOD. SELECTION OF SOLUTIONS

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v74.i12.30 ◽

2015 ◽

Vol 74 (12) ◽

pp. 1071-1084 ◽

Cited By ~ 1

Author(s):

Yu. A. Pedenko

Keyword(s):

Elevation Angle ◽

Angle Measurement ◽

Sea Surface ◽

Method Selection ◽

Selection Of

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One-shot Multi-angle Measurement Device for Evaluating the Sparkle Impression

Electronic Imaging ◽

10.2352/issn.2470-1173.2020.5.maap-120 ◽

2020 ◽

Vol 2020 (5) ◽

pp. 60401-1-60401-8

Author(s):

Shuhei Watanabe

Keyword(s):

Spatial Frequency ◽

Product Design ◽

Angle Measurement ◽

Observation Angle ◽

Light Sources ◽

Quantification Method ◽

Material Appearance ◽

Subjective Score ◽

Measurement Devices ◽

Rotation Stage

The quantification of material appearance is important in product design. In particular, the sparkle impression of metallic paint used mainly for automobiles varies with the observation angle. Although several evaluation methods and multi-angle measurement devices have been proposed for the impression, it is necessary to add more light sources or cameras to the devices to increase the number of evaluation angles. The present study constructed a device that evaluates the multi-angle sparkle impression in one shot and developed a method for quantifying the impression. The device comprises a line spectral camera, light source, and motorized rotation stage. The quantification method is based on spatial frequency characteristics. It was confirmed that the evaluation value obtained from the image recorded by the constructed device correlates closely with a subjective score. Furthermore, the evaluation value is significantly correlated with that obtained using a commercially available evaluation device.

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