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Company Information
Laser Mapping Specialists, Inc. (LMSI) is one of the
premier providers of airborne laser mapping in the United States. LMSI is a
woman owned small business founded in 1998 by a staff that pioneered the
commercial use of Optech’s Airborne Laser Terrain Mapping (ALTM) system over
eight years ago. For five years, while at other companies, our key managers
mapped hundreds of thousands of acres of land for engineering design,
hydrologic modeling and planning applications. They have worked from the
Arctic North to South America and
across North America. They mapped thousands of miles of utility corridors,
hundreds of thousands of acres of land for one foot contours, including
Chatham County, Georgia, and provided survey data for the design of tens of
millions of dollars in engineering projects including the Panama Canal
Railroad re-build.
We started LMSI because we believe we can provide a superior airborne laser
survey in less time with better quality, and more cost effectively than
anyone else. During the past four and one half years we have mapped projects
all over the United States, including a 260 mile corridor from Albuquerque
to El Paso, Genesee County, MI (820 square miles), Beaufort County, SC, (754
square miles), Marion County, IN (490 square miles), Madison County, IN (490
square miles) and dozens of other projects including airports,
transportation
projects, development projects and many others.
Airborne laser mapping can produce high accuracy digital terrain models (DTM)
with vertical accuracies better than 15cm (6”). On our Beaufort County 1’
contour mapping project, we produced a FEMA compliant LIDAR survey with an
RMSE error of better than 8cm, a feat unequaled in the LIDAR industry. If
you have a need for a high resolution high accuracy LIDAR survey, give us a
call at LMSI.
|
Aircraft |
Laser System |
Intensity Image |
 |
 |
 |
|
Piper Aztec |
Optech ALTM 3100EA |
Geo
Referenced
Intensity Photo |
We use Optech’s 3100EA airborne laser mapping system,
which is capable of recording up to 100,000 individual laser ranges per
second, recording up to four returns per pulse. The
system will also record the laser intensity return from each laser spot.
This allows for the creation of a gray scale image of the
laser survey, day or night.
|
LASER SPECIFICATIONS [ALTM
3100EA] |
| Operating altitude
|
80 - 3,500 m
nominal |
| Elevation accuracy |
Better than 5 cm at
500 m; <20 cm at 3,000 m (1 sigma) |
| Range resolution |
1 cm |
| Scan angle |
Variable from 0 to ±
25° |
| Swath width |
Variable from 0 to
0.93 x altitude |
| Scan frequency |
Variable, depends on
scan angle |
| Horizontal accuracy |
Better than 1/5,500
x altitude |
| GPS receiver |
Novatel Millennium |
| Laser repetition
rate |
33, 50, 70, or 100kHz selectable |
| Beam divergence |
Variable, 0.3 mrad
(1/e) or 0.8mrad |
| Laser classification |
Class IV laser
product (FDA CFR 21) |
| Eyesafe range |
150 m @ 1.0 mrad,
400 m @ 0.2 mrad nominal |
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