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Positioning part 1 Flashcards | StudBud
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Positioning part 1
Positioning part 1
67 terms
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StudBud Administration
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Science
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67 cards
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Questions
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Answers
1
__ includes an series of technical worksheets, covering aspects ranging from nav val to peeps
Technical pages
Ros
Hrdroscheme
Qms
2
Is collecting the data within the framework such as bathymetry and tides
Orientaion
Scale
Detail
Position
3
From the HI the co/SAS shall draw up detailed plans for executing and rendering the survey
Data collection
Hydroscheme
ROS
4
Describe the functions of the fugro seastar( maritime 9200)
Part of the seastar world wide dGPS service
Has a standard elevation angle of 8° for G2 and 5° for VBs
Transmitted on a L-band communications satellite
Has a reputed accuracy of up to 8cm
5
Makes sure the s6 is calibrated to the point at the centre of the target
Auto focus calibration
Autolock calibration
Laser pointer
6
Existing imagery sources from AGO include
Satellite Airbourne Imagery
Vector data sets
Topographic Maps
Street directory and littoral products
7
3 methods of GNSS surveying
Absolute, classic and on the fly
Satellite error, atmosphere and receiver error
8
On completion of stringent checking of the ROS, a __ is raised and sent to the charge surveyor
Survey validation/appraisal
HYDROSCHEME
ROS
9
The _ cannot be mathematically defined as its shape depends on the irregular of the earths mass
Ellipsoid
Geoid
10
Nautical survey and charting program that summarise the hydro activities for the next 3 years
HI
Data collection
Hydroscheme
Part 1
11
List the 5 areas of info that are produced in a survey
Coastline, depths, oceanographic data
Coastline, depths, oceanographic data, tides and current
Tides and current and physical properties of the water colum
Physical properties in the water coloumn
12
Norm method of dispatch within aus is to be done by Gov contracted courier.
This is the procedure for the packaging and dispatch of ROS
Each box contains a complete listing of contents on the data
13
Allows the laser to be turned off and on and to check if aligned with the crosshairs
Laser pointer
Not a trick question
14
List the procedures for adjustments to the total station
Kick it in the sand
Compensator, horizontal/vertical, autolock, auto focus
15
List 5 types of projections
Gnomonic, Azimuthal, sterographic, conic and cylindrical
Parallels of lattitude
16
Is essential for the reference frame of a GIS
Scale
Position
Detail
Orientation
17
A _ _ is a systematic charting of an area to obtain and provide basic data for nautical charts
Hydro survey
Hydroscheme
Survey planning
18
Parallels of latitude are circles running around the globe, parallel to the equator
Maybe
True
False
19
Initial planning of surveys will be undertaken in the AHO preferably in consultation with an HS
Survey validation
HI Hydrographic Instruction
Submission of data
20
dGPS is a ground based augmentation system for GPS that can improve GPS that can improve __
Accuracy +-15m
Accuracy +-5m
Thus is for the principle of dGPS
Accuracy +-3
21
Steps involved in survey planning?
General planning and Site Specific plan
Reconnaissance
22
A _ is a system of squares superimposed on a projection, so that computation and plotting of
A grid
Geodessy
Projection
Data can be done using simple trigonometry
23
The great circle is a circle that will cut a sphere into 2 equal halves
Great circles are just great
Great circles provide the shortest path between two points
Great circles are longer than Rhumb lines
24
A projection is a method to plot a curved surface if the earth to a flat surface, while
Geodessy is projected as transverse mercantor, they are
Distorted and do not appear as a straight line
25
List the 5 FUNDAMENTAL parts of a survey
Orientation, scale, shape, detail, report
Postion, orientation, scale, shape and detail
Position, orientation, recon, scale and detail
26
List and explain the met observations required for a total station observations
Barometric pressure-to read to 1mb/hPa
Know it
Tempreture-to read to 1°C
Humidity read to 2%
27
WAdGPS is a form of dgps where corrections are recieved from a network of reference stations __
Separate correction r determined for specific error sources
Established over a wide area
28
State how many satellites are required for a fix and why
3, x- latitude, y-longitude, z-height
4, x-latitude, y-longittude, z-height, t-time
29
Refer to the picture. What does it reference
Psudo range
Gnss theory
How the trimble GNSS reciever works
30
The 3 categories of error
As above
Satellite, atmospheric and receiver error
31
Section required charge surveyor to describe the conduct of the survey under headings
Part 1
HI
Technical pages
32
The considerations for the transport of lpg cylinders are
Cylinders over 25litres arnt to be carried indorrs by a car
One for one exchange with boc
Should be secured upright to prevent movement
Ok got it
33
SVs will transmit its data by precise microwaves signals using binary code. It is sent in 3 seg
Ephemeris data-sv precise orbit infomation
Almanac- sv course orbit time, ionosphere model
Nav message- time, sv health
Navigational message, Ephemeris data, Almanac
34
Once complete the sensor will be able to automatically adjust and allow for change in balance
Laser pointer
Autofocus calibration
Compensator calibration
35
List the 3 phases of survey reconnaissance
Office, field, and report
Hydro plan
General plan
36
__ are semi circles running north south from one pole to the other around the globe
Meridian of longitude
Parallel of latitude
37
List the survey publications and standards
INT 1/chart 5011, geodectic datum technical manual
The necromonicom
Manual on hydrography, S44 IHO standards for hydro surveys
38
_ is needed prior to any survey to acquire essential data to do the best survey
Reconnaissance
Survey planning
39
Section requires Co/OIC to describe the conduct of the survey in relation to problems
PART 1
Encountered, amount completed, and analysis of survey
Submission of data
Technical pages
40
The _ is a comprehensive report that conveys a full summary of the results, methods used in sur
ROS Report of Survey
Survey Validation
Data collection
HI Hydrographic instruction
41
5 steps involved in the sequence of a hydrographic survey
Coastline, depths, ocean data, tides and physical properties
Hydroscheme, HI, Data collection, ROS, and survey validation
Position, orientation, scale, shape and detail
42
Previous historical info, examining maps/charts, existing geodesic records and sailing direct
These are examples of imagery sources
These are examples of existing data and available resources
43
Looks at the serial imput and output of data from the GPS receiver and demodulator with 3100LRS
QC PLOT
MRdGPS
IOWIN
Alarm
44
The scale or size must be determined by determining the distance between several marks
Scale
Geodessy.
Size
Shape
45
Local notification, survey lines, datum, data density, specific equipment and peeps are part of
Site Specific plan
General plan
46
An instrument's calibration should be every 3 months
True
Dont forget auto focus calibration. Self explanatory
False
47
Good atmospheric conditions, legs and unit are level, secure, not exposed to the sun and ___
This is how to minimize errors
Adapt to ambient temperature
48
Check condition of equipment and all items are accounted for, sign and dispatch any documents
Ensure the items are in working order
Thses are the checks on hydrographic equipment
49
MRDGS shows all QC data windows related to the selected base stations
MRDGPS
Alarm
IOWIN
QC PLOT
50
The __ is a CPU app presented on the AHO and DRN that employs a data and search engine on sops
Sra
Hra
Qms
51
_ occurs when the horizontal line of sight viewed through the telescope is not perpendicular__
Parallax error, to the vertical axis
Parallax error, with each other
Collimation error, and to the verticle axis
Collimation error, with each other
52
GNSS provides a position that is determined by means of the receipt of radio signals from a SV
Constellation in orbit around the earth. It is real time,
This is the theory of gnss
All weather 24hr, 3D positioning systmem
53
Time series plots on monitoring various outputs
MRDGPS
IOWIN
Alarm
QC PLOT
54
The __ is an arbitrary mathematically geometrical construct that resembles the earth's surface
Ellipsoid
Geoid
55
__ occurs when the background and crosshairs are not in focus with each other
Collimation error
Parallax error
56
To be of any use, the framework must be oriented
Orientation
Position
Shape
Scale
57
Look at the picture
F=(a-b)/a
Okay
58
All TPS are subject to errors caused by the axis of the telescope not being perpendicular __
To the vertical instrument.
This is for Horizontal/vertical angle calibration
59
Statethe suite of programs for a Fugro seastar wadgps
IOWIN, MRDGPS, QC PLOT and ALARM
Reciever, demodulator, and VBS engine
60
Explain the concept of ppk gnss rovers
Post processing to apply corrections
Base and rover record positions simultaneously
Continuous SVs lock during observations
Rapid or static or stop and go
61
Spherical trigonometry is of great importance for calculations in astronomy and geodessy nav
Got it
K
62
__ covers a wide range of activities ranging from the development of an idea for an survey
SURVEY PLANNING
To the issue if the HI to the planning conducted by the ship
63
State the main operating ranges for the edm function of the TPS
1 prism=0.2-2500m
Infa red distance measurement (DR)= 1-600m
1 prism=longrange mode 5500m
64
Describe the structure of a ROS
Hydroscheme index
Submission of data, part 1, and technical pages
Absolute, fixed and on the fly
65
List 3 specific ellipsoids
Cone, cylindrical and square
WGS84, GDA 2020 and GDA 94
ANS aus national spheroid, AGD 66
66
Training, software, equipment maintenance, logistics, schedual, safety and weather are parts of
General plan
Site Specific plan
67
Having established a position, azimuth and scale can be coordinated to provide a framework
That allows all the survey to be fixed
Shape
Position
Detail