hatdog
問題一覧
1
represent part of the sperical earth on a plane surface. it shows water depth the shoreline of adjacent land, prominent topographic features, aids to navigation, and other navigational information.
NAUTICAL CHART
2
Navigators most often use the plane conformal projection
MERCATOR PROJECTIONS
3
is not perspective, and its parallel can be derived mathematically as well as projected geometrically.
mercator projections
4
also known as transit
THE NAVIGATIONAL SATELLITE SYSTEM
5
The system accuracy was better than 0.1 nautical mile anywhere in the world, through its availability was somewhat limited.
THE NAVIGATION SATELLITE SYSTEM
6
it was also used in hydrographic surveying and geodetic position determination.
THA NAVIGATION SATELLITE SYSTEM
7
The federal radionavigational plan has designed he navigational system using timing and ranging ( NAVSTAR) global positioning system ( GPS) as the primary navigational system of the US government.
THE GLOBAL POSITIONING SYSTEM
8
is a spaced-base radio positioning system which provides suitably equipped user with highly accurate position, velocity and time data.
GPS
9
What are the 3 major segments
SPACE SEGMENT, CONTROL SEGMENT, USER SEGMENT
10
Consist of 31 GPS satellite with atleast 24 operational 95% of the time. spacing of the satellites in their orbits is arrange so that at least four satellite are in view to a user any time, anywhere on the earth, including north and south poles.
SPACE SEGMENT
11
includes a master control station ( MCS ), a number of monitor stations, and ground antennas located throughout the world.
CONTROL SEGMENT
12
is designed to received and process signal from four or more orbiting satellites either simulataneously or sequentially.
USER SEGMENT
13
is an earth centered, earth fixed terrestia reference and geodetic datum.
WGS84
14
is based on a consistent set of constant and model parameters that describe the earths size, shape and gravity and geomagnetic fields.
WGS84
15
one of the most serious impacts of different datums on navigation occurs when a navigation system provides a fix based on a datum different from that used for the nautical chart.
DATUM SHIFT
16
is a common features for mariner GPS units.
THE MAN-OVERBOARD
17
is the position of one point relative to another.
DIRECTION
18
navigators express direction as the angular difference in degrees from a reference directions, usually north or the ships head
DIRECTION
19
is the horizontal direction in which a vessel is intended to he steered, expressed as angular distance form north clockwise through 360.
COURSE
20
is often designated as true, magnetic, compass, or grid according to the reference direction.
COURSE
21
is the direction in which a vessel is pointed at any given moment, expressed as angular distance from 000* clock wise through 360*
HEADING
22
Constantly changes as a vessel yaws back and forth acroas the course due to sea, wind, and steering error.
HEADING
23
is the direction of one terrestrial point from another, expressed as angular distance from 000* (north) clockwise through 360*
BEARING
24
when measured through 90* or 180* from either north and south.
BEARING
25
are sometimes used interchangeably, but the latter more accurate referes to the horizontal directions of a point on the celestial sphere from a point in the earth.
BEARING
26
determine distance to an object by measuring the time required for a radio signal to travel from a transmitting antenna to the object, reflect off that object, and return as a received echo.
RADAR NAVIGATION
27
represent part of the sperical earth on a plane surface. it shows water depth the shoreline of adjacent land, prominent topographic features, aids to navigation, and other navigational information.
NAUTICAL CHART
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29問 • 1年前問題一覧
1
represent part of the sperical earth on a plane surface. it shows water depth the shoreline of adjacent land, prominent topographic features, aids to navigation, and other navigational information.
NAUTICAL CHART
2
Navigators most often use the plane conformal projection
MERCATOR PROJECTIONS
3
is not perspective, and its parallel can be derived mathematically as well as projected geometrically.
mercator projections
4
also known as transit
THE NAVIGATIONAL SATELLITE SYSTEM
5
The system accuracy was better than 0.1 nautical mile anywhere in the world, through its availability was somewhat limited.
THE NAVIGATION SATELLITE SYSTEM
6
it was also used in hydrographic surveying and geodetic position determination.
THA NAVIGATION SATELLITE SYSTEM
7
The federal radionavigational plan has designed he navigational system using timing and ranging ( NAVSTAR) global positioning system ( GPS) as the primary navigational system of the US government.
THE GLOBAL POSITIONING SYSTEM
8
is a spaced-base radio positioning system which provides suitably equipped user with highly accurate position, velocity and time data.
GPS
9
What are the 3 major segments
SPACE SEGMENT, CONTROL SEGMENT, USER SEGMENT
10
Consist of 31 GPS satellite with atleast 24 operational 95% of the time. spacing of the satellites in their orbits is arrange so that at least four satellite are in view to a user any time, anywhere on the earth, including north and south poles.
SPACE SEGMENT
11
includes a master control station ( MCS ), a number of monitor stations, and ground antennas located throughout the world.
CONTROL SEGMENT
12
is designed to received and process signal from four or more orbiting satellites either simulataneously or sequentially.
USER SEGMENT
13
is an earth centered, earth fixed terrestia reference and geodetic datum.
WGS84
14
is based on a consistent set of constant and model parameters that describe the earths size, shape and gravity and geomagnetic fields.
WGS84
15
one of the most serious impacts of different datums on navigation occurs when a navigation system provides a fix based on a datum different from that used for the nautical chart.
DATUM SHIFT
16
is a common features for mariner GPS units.
THE MAN-OVERBOARD
17
is the position of one point relative to another.
DIRECTION
18
navigators express direction as the angular difference in degrees from a reference directions, usually north or the ships head
DIRECTION
19
is the horizontal direction in which a vessel is intended to he steered, expressed as angular distance form north clockwise through 360.
COURSE
20
is often designated as true, magnetic, compass, or grid according to the reference direction.
COURSE
21
is the direction in which a vessel is pointed at any given moment, expressed as angular distance from 000* clock wise through 360*
HEADING
22
Constantly changes as a vessel yaws back and forth acroas the course due to sea, wind, and steering error.
HEADING
23
is the direction of one terrestrial point from another, expressed as angular distance from 000* (north) clockwise through 360*
BEARING
24
when measured through 90* or 180* from either north and south.
BEARING
25
are sometimes used interchangeably, but the latter more accurate referes to the horizontal directions of a point on the celestial sphere from a point in the earth.
BEARING
26
determine distance to an object by measuring the time required for a radio signal to travel from a transmitting antenna to the object, reflect off that object, and return as a received echo.
RADAR NAVIGATION
27
represent part of the sperical earth on a plane surface. it shows water depth the shoreline of adjacent land, prominent topographic features, aids to navigation, and other navigational information.
NAUTICAL CHART