scholarly journals High-Precision Distance Measurement with an unmanned, Moving Target

1986 ◽  
Vol 8 ◽  
pp. 93-95
Author(s):  
H. Ito ◽  
K. Schroff ◽  
Hans-jörg Frei
Keyword(s):  
Sea Ice ◽  
High Precision ◽  
Distance Measurement ◽  
Moving Object ◽  
Measuring Instruments ◽  
Moving Target ◽  
Personnel Cost ◽  
Greenland Sea ◽  
Single Station ◽  
Set Up

A device was developed, which rotates a marker for the distance measurement in the desired direction, without an operator at the spot. This is also possible with a moving object, on which the marker is set up. The device, together with adequate distance-measuring instruments, yields a precise distance measurement by a single observer at a single station. Examples of measurements using it during sea-ice studies in the Greenland Sea are described. It is shown that the application of the instrument provides a satisfactory basis for precise glacier surveying with limited personnel, cost, and time.

scholarly journals High-Precision Distance Measurement with an unmanned, Moving Target

1986 ◽  
Vol 8 ◽  
pp. 93-95
Author(s):  
H. Ito ◽  
K. Schroff ◽  
Hans-jörg Frei
Keyword(s):  
Sea Ice ◽  
High Precision ◽  
Distance Measurement ◽  
Moving Object ◽  
Measuring Instruments ◽  
Moving Target ◽  
Personnel Cost ◽  
Greenland Sea ◽  
Single Station ◽  
Set Up

A device was developed, which rotates a marker for the distance measurement in the desired direction, without an operator at the spot. This is also possible with a moving object, on which the marker is set up. The device, together with adequate distance-measuring instruments, yields a precise distance measurement by a single observer at a single station. Examples of measurements using it during sea-ice studies in the Greenland Sea are described. It is shown that the application of the instrument provides a satisfactory basis for precise glacier surveying with limited personnel, cost, and time.

scholarly journals The sea-ice compactness in the Greenland and Barents Seas during 1979–2003: changes and links to the surface air flow

2006 ◽  
Vol 44 ◽  
pp. 30-36 ◽  
Author(s):  
Stefan Kern ◽  
Youmin Chen ◽  
Detlef Stammer ◽  
Gunnar Spreen
Keyword(s):  
Sea Ice ◽  
Barents Sea ◽  
Air Flow ◽  
Surface Wind ◽  
Microwave Radiometry ◽  
Greenland Sea ◽  
Wind Pattern ◽  
Ice Concentration

AbstractAnnual and winter (December–April) sea-ice area and extent are calculated for the Greenland Sea (GS) and Barents Sea (BS) from daily ice concentrations obtained from space-borne microwave radiometry for 1979–2003. The ice extent decreases significantly, particularly during winter, by 65 000 km2 (decade)–1 in the GS and by 72 000 km2 (decade)–1 in the BS. Ice-extent fractions (of these total extents) occupied by ice of five different ice-concentration ranges are calculated and analyzed. Changes in these fractions are again significant and most pronounced during winter. In the GS, the fraction of close to very compact ice (65–95%) decreases by 17 000 km2 (decade)–1 and the fraction of very compact ice (>95%) increases by 29 000 km2 (decade)–1, corresponding to a loss of 19% and a gain of 58% relative to the 25 year mean, respectively. In the BS, the fraction of close to compact ice (65–85%) increases by 26 000km2 (decade)–1 and the fraction with compact to very compact ice (>85%) decreases by 66 000 km2 (decade)–1, corresponding to a gain of 30% and a loss of 67% relative to the 25 year mean, respectively. The changing surface wind pattern analyzed from ERA-40 data favours this increasing (decreasing) ice compactness in the GS (BS).

scholarly journals Wireless UGV for Target Tracking and Obstacle Detection using Live Surveillance

2019 ◽  
Vol 8 (6S2) ◽  
pp. 384-386
Keyword(s):  
Target Tracking ◽  
Distance Measurement ◽  
Obstacle Detection ◽  
Ultrasonic Sensor ◽  
Prototype Model ◽  
Live Video ◽  
Ip Camera ◽  
Complete Set ◽  
Set Up

our aim is to develop a project that will benefit society. But nowadays it is employed to assist human in surveillance, rescue and recovery missions. This paper presents the prototype model of an UGV which is operated wirelessly through manual navigation commands based on the live video captured from the IP camera mounted on the board. The distance measurement is done by the Ultrasonic sensor from the obstacle and displayed in the LCD. The target tracking as well as attacking is done based on the obstacle and environment situation monitored in the live video. This complete set up and working of the UGV is described further in this paper

scholarly journals Simulation of High Precision Process Control for Set-up Dominant Processes

Procedia CIRP ◽  
2013 ◽  
Vol 11 ◽  
pp. 379-384 ◽  
Author(s):  
Steven Cox ◽  
John Garside ◽  
Apostolos Kotsialos
Keyword(s):  
Process Control ◽  
High Precision ◽  
Set Up

All Polarization Maintaining Fiber Based Dual-Comb High Precision Absolute Distance Measurement System

2015 ◽  
Vol 35 (s2) ◽  
pp. s212001
Author(s):  
许立明 Xu Liming ◽  
宋有建 Song Youjian ◽  
梁飞 Liang Fei ◽  
师浩森 Shi Haosen ◽  
胡明列 Hu Minglie ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Distance Measurement ◽  
Absolute Distance ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining
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