Increased accuracy of motor vehicle position estimation by utilising map data: vehicle dynamics, and other information sources

2002 ◽  
Author(s):  
C.A. Scott ◽  
C.R. Drane
Keyword(s):  
Vehicle Dynamics ◽  
Information Sources ◽  
Motor Vehicle ◽  
Position Estimation ◽  
Other Information ◽  
Vehicle Position ◽  
Map Data

RAILROAD INVESTING AND THE IMPORTANCE OF FINANCIAL ACCOUNTING INFORMATION IN 1880s AMERICA

2013 ◽  
Vol 40 (2) ◽  
pp. 55-89 ◽  
Author(s):  
Joel E. Thompson
Keyword(s):  
United States ◽  
Information Sources ◽  
Accounting Information ◽  
The United States ◽  
Financial Accounting ◽  
Wall Street ◽  
New Information ◽  
Other Information ◽  
Comprehensive Search ◽  
The Wall Street Journal

This study has a two-fold purpose. First, it seeks to determine the importance of financial accounting information to railroad investors (and speculators) in 1880s America. Second, a further goal is to ascertain what financial accounting information was readily available for use by these investors. Based on a comprehensive search of books of the era, the 1880s were a time of expanding advice for railroad securities holders that required the use of financial accounting information. Furthermore, new information sources arose to help service investors' needs. Statistics by Goodsell and The Wall Street Journal were two such sources. This article reviews these publications along with the ongoing Commercial and Financial Chronicle and Poor's Manual of the Railroads of the United States. Each of these sources helped railroad investors to follow contemporary advice of gathering financial accounting and other information when investing.

Information sources about face-to-face meetings with people from the Internet: Gendered influence on adolescents’ risk perception and behavior

2021 ◽  
pp. 146144482110148
Author(s):  
Vojtěch Mýlek ◽  
Lenka Dedkova ◽  
David Smahel
Keyword(s):  
Risk Perception ◽  
News Media ◽  
Information Sources ◽  
Female Adolescents ◽  
Male Adolescents ◽  
Face To Face ◽  
Other Information ◽  
Potential Benefits ◽  
And Behavior ◽  
Practical Recommendations

Adolescents commonly make new social connections online that sometimes result in face-to-face meetings. Despite potential benefits, risk-focused discourse dominates public debates and shapes information shared by sources important for adolescents—news media, preventive programs, peers, parents, and teachers. Our study examines how information about face-to-face meetings from these sources relates to adolescents’ risk perception and engagement in such meetings. Using a sample of 707 Czech adolescents (aged 11–16 years, 46% male), we analyzed these effects for male and female adolescents to reflect the gendered nature of the risk-focused discourse. Male adolescents’ risk perception was not affected by information from any source. Female adolescents’ risk perception was negatively affected by information peers with prior experience with face-to-face meetings but not by other information sources. Female adolescents also perceived face-to-face meetings as riskier in general. We discuss gender differences and the limited impact of information sources on risk perception and provide practical recommendations.

Bring the noise: Piecing together a discharge record from an automated salt dilution gauging setup and various other information sources

2021 ◽  
Author(s):  
Steven Weijs ◽  
Sophia Eugeni
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Water Resources Management ◽  
Flow Measurement ◽  
Information Sources ◽  
Measurement Methods ◽  
Mountain Stream ◽  
Resources Management ◽  
Other Information ◽  
Discharge Record

<p>Streamflow measurement and prediction are important for proper water resources management. In this case, the water resources problem is drought in the Coastal Mountains of British Columbia, Canada, where a village is drawing drinking water from a mountain stream. Because of challenges with other flow measurement methods in streep turbulent streams, salt dilution gauging is the best way to measure streamflow, but it is labour intensive.</p><p>To advance progress towards the singularity, an intelligent automated salt dilution gauging system was deployed, and provides good results, but some disturbances occur due to the presence of a tributary and a drinking water intake. We show how this noise can be turned into signals and discuss a range of other signals that together provide input for the discharge record.</p>

Digital Libraries as Information Superhighway

2016 ◽  
pp. 304-315
Author(s):  
Prakash Dongardive
Keyword(s):  
Digital Libraries ◽  
Information Sources ◽  
Remote Access ◽  
Digital Information ◽  
Information Superhighway ◽  
Electronic Networks ◽  
Digital Contents ◽  
Virtual Libraries ◽  
Other Information ◽  
Source Of Information

During the decade of 1990s the term digital libraries become a recognized phrase for describing libraries that offer access to digital information by using a variety of networks, including internet and world wide web. Other synonyms used interchangeably with digital libraries are library without walls and electronic and virtual libraries because every online or virtual source of information is electronic source of information but every electronic information sources are not online or virtual form, so digital or electronic library includes digital contents and that can be delivered any time anywhere to the networked computer. Digital libraries provide remote access to the contents and the services of the libraries and other information sources combining an onsite collection of current and heavily used materials in both print and electronic form with an electronic networks which provide access to and delivery for worldwide libraries and commercial information and knowledge sources. Basically the digital libraries are the metaphor for the networked libraries. In the light of this therefore, this chapter discussed digital libraries as information superhighway looking at issues like factors responsible for the emergence of digital libraries, influence internet on digital libraries, etc.

scholarly journals Extended Kalman Filter (EKF) Design for Vehicle Position Tracking Using Reliability Function of Radar and Lidar

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4126 ◽  
Author(s):  
Taeklim Kim ◽  
Tae-Hyoung Park
Keyword(s):  
Kalman Filter ◽  
Sensor Fusion ◽  
Extended Kalman Filter ◽  
Reliability Function ◽  
Position Estimation ◽  
Position Tracking ◽  
Radar Sensors ◽  
Vehicle Position ◽  
Sensor Errors ◽  
Fuzzy Adaptive

Detection and distance measurement using sensors is not always accurate. Sensor fusion makes up for this shortcoming by reducing inaccuracies. This study, therefore, proposes an extended Kalman filter (EKF) that reflects the distance characteristics of lidar and radar sensors. The sensor characteristics of the lidar and radar over distance were analyzed, and a reliability function was designed to extend the Kalman filter to reflect distance characteristics. The accuracy of position estimation was improved by identifying the sensor errors according to distance. Experiments were conducted using real vehicles, and a comparative experiment was done combining sensor fusion using a fuzzy, adaptive measure noise and Kalman filter. Experimental results showed that the study’s method produced accurate distance estimations.

Effect of PDOP on performance of Kalman Filters for GNSS-based space vehicle position estimation

GPS Solutions ◽  
2017 ◽  
Vol 21 (3) ◽  
pp. 1379-1387 ◽  
Author(s):  
Sanat K. Biswas ◽  
Li Qiao ◽  
Andrew G. Dempster
Keyword(s):  
Kalman Filters ◽  
Space Vehicle ◽  
Position Estimation ◽  
Vehicle Position

Spot Locator for Autonomous Parking

2009 ◽  
Author(s):  
Nikolai Moshchuk ◽  
Shih-Ken Chen
Keyword(s):  
Position Estimation ◽  
Ultrasonic Sensors ◽  
Test Vehicle ◽  
Detection Range ◽  
Signal Filtering ◽  
Suggested Algorithm ◽  
Parking Spot ◽  
Vehicle Position ◽  
And Performance ◽  
Left Front

For a semi-autonomous or fully-autonomous parking system, detecting adequate parking spot is the first step. Ultrasonic sensor possesses a good compromise between cost and performance since the detection range is very small. This paper describes a parking assist system with two ultrasonic sensors mounted at the left front and right front corners of the vehicle. Special signal filtering and processing is derived. Kinematic observer for the vehicle position estimation during search and parking phases is discussed. The suggested algorithm is implemented in Matlab/Simulink and was verified in a test vehicle.

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