Topographic Maps
Describe configuration (relief) of terrain
Locate natural and cultural features
Contours: Lines of Equal
Elevation
Fitting Contours
Contour Rules
Typically wont cross.
Close spacing = steep slope.
Steepest descent to contour
V indicates w
Angular Measurement
Requires three points
From Backsight reference
At Where the transit is located
To Foresight
Units of Measure
Degrees, Min, Sec
Radians - rad = 180 degrees
Gons European, 400 Gon/circle
Direction of a Line
Same units as Angles
Meridians
EDMs
Electronic Distance
Measurement
Reflector
Classes of EDM
Infrared
Microwave
Requires transmitter at each end
Communicate through them
Laser
Improvements Over Time
Decreased Size
Decreased Power Usage
Smaller Batteries
On-board Microprocessor
Measurem
US Public Lands
Developed by Congress
Concepts
Land laid out in regular, square blocks
Any one farmer might manage 40
acres
A group of farmers might collectively
oversee 640 acres - 1 square mile
(Section)
US Public Lands: Checks
Initial Point
Prime
Merid
Introduction to ArcGIS
Overview
What is ArcGIS
ArcGIS Interface
What is ArcGIS?
ArcGIS Clients
ArcReader
E
X
T
E
N
S
I
O
N
S
ArcGIS Desktop
ArcGIS Engine
ArcInfo
Custom
Application
ArcEditor
ArcView
Components
ArcPad
ArcObjects
Network
ArcGIS Server
Appli
Differential Leveling
Definitions
Process
Curvature and Refraction
Verniers
Errors and Mistakes
Operational Procedures
Definitions
Benchmark
Backsight
Elevation of level plane of sight
Foresight
Shot taken on a point of known elevation
Height of Instrumen
Property Surveys
Best done by an RLS
Common law
Monuments
Purpose - leave
easily located
corners
Blazing Trees
Property Surveys
Within
boundary
Set-backs
Easements
Rights-of-way
Baseline
Line parallel to
construction
Out of harms way
Often use Property
L
Surveying
The art of determining or establishing
the relative positions of points
on, above, or below the earths surface
History of Surveying
Egyptions used
surveying in 1400
b.c. to divide land
up for taxation
Romans introduced
surveying
instruments
Type
Circular Curves
I Intersection angle
Portion of a circle
R - Radius
Defines rate of
change
R
I
Degree of Curvature
D defines Radius
Chord Method
R = 50/sin(D/2)
Arc Method
(360/D)=100/(2R)
R = 5729.578/D
Terminology
PC: Point of Curvature
PC = PI T
PI = P
End Areas
Based on
Cross-sections
Typical section
Area ft2
Cut
Fill
CL
Slope Stakes
Slope Stakes
Slopes and Slope Stakes
Construction Grade
Staking
Stake centerline, slope breakouts
Based on typical section
Slope Stakes
12 + 4(4) + 8 + 6.3(4) =
61.2
Slope
Introduction to GIS
Geographic Information Systems
Overview
What is a GIS?
What GIS is Not?
Components of a GIS
GIS Data
How GIS works
Examples of GIS
products
What is GIS?
Geographic
Information System is
a set of computer
software, hardware,
data,
Introduction to GPS
Global Positioning System
Three GPS segments
Global Positioning System
(GPS)
Satellite Location
27 Satellites in system
Each carries very accurate clock
Sends a coded signal every millisecond
Ground Stations
Track satellite locations
S
9 WI!“
CEN 320
SURVEYING, MEI'RICS AND 615
W
September 20'! 5
[Each problem is worth 5 points. Show all work]
a ter - 12 Directi
1. Determine the angles A03 and BOC for the figure.
2. Compute all of the interior angles for the ﬁgure.
MSW“? Ln) a _,. .
“q
GEN 310
SURVEYNG, METRJCS AND GIS
MW
September 2015
[Each problem is worth 5 points. Show allwork]
Chapter; - Lgtroducﬁog
‘1. List ten types of surveys.
2. List five safety precautions that should regularly be taken by the surveyor.
_ «txij Linc:- H “A” 3
Working with S-parameters
For network computations it is easier to
convert from the S-matrix representation to
the chain scattering matrix notation
b1 S11
=
b2 S 21
S12 a1
S 22 a2
a1 T11 T12 b2
=
b1 T21 T22 a2
T11 = 1 S21 , T21 = S11 S21 , etc.
Example 5-3 p 229 MatLab Result:
Second Order Butterworth Low-Pass Filter w/ fc = 900 MHz
% Example 5-3 p 229: Butterworth Low-Pass Filter
%
close all; % close all opened graphs
clear all; % clear all variables
figure; % open new graph
% Normalized compon
Scattering parameters
There is a need to establish well-defined
termination conditions in order to find the
network descriptions for Z, Y, h, and
ABCD networks
Open and short voltage and current
conditions are difficult to enforce
RF implies forward an
Example 5-3 p 229 MatLab Result:
Second Order Chebyshev Low-Pass Filter w/ 3 dB Ripple and fc = 900 MHz
% Example 5-3 p 229: Chebyshev Low-Pass Filter
close all; % close all opened graphs
clear all; % clear all variables
figure; % open new graph
% Normali
Scattering parameters
There is a need to establish well-defined
termination conditions in order to find the
network descriptions for Z, Y, h, and
ABCD networks
Open and short voltage and current
conditions are difficult to enforce
RF implies forward an
Band-Pass Filter Design Example
Attenuation response
of a third-order 3-dB
ripple bandpass
Chebyshev filter
centered at 2.4 GHz.
The lower cut-off
frequency is f L = 2.16
GHz and the upper cutoff frequency is f U =
2.64 GHz.
EEE 194RF_L19
1
RF/W Stripline