Imu - Headwall Nano-Hyperspec Operation Manual

1.2.2 IMU.

When using the IMU it is important that the power cables be secured the maximum
distance from the IMU. This will prevent magnetic interference, errors in data
storage, orientation problems or possible damage to the unit.
The IMU weighs 58 grams. When mounted to the Nano-Hyperspec
inclusion into the scan data file. The positional data from the unit is then used for ortho-rectification of the scan data
®
within the SpectralView
length to eliminate an interference.
The software to operate the IMU and generate positional data is embedded within the device. The software to interpret the
positional data is integrated into the Hyperspec
within the package. The MT-Manager is also available to install directly from the Hyperspec
®
Hyperspec III is first installed onto the computer. During the system software loading and system set up process, the
®
Nano-Hyperspec and IMU units are configured to operate together. When ordered together this integration is done at the
Headwall facility prior to shipping.
The IMU specifications are listed in the following table. The value CEP is (Circular Error Probability), defined as the
radius of a circle centered on the true value that contains 50% of the actual GPS measurements. So a receiver with 1 meter
CEP accuracy will be within one meter of the true measurement 50% of the time. The other 50% of the time the
measurement will be in error by more than one meter.
application. The Headwall supplied cable used to connect the IMU to the Nano is the minimal
Figure 1-3. IMU
®
III software. A flash drive containing the IMU MT-Manager is included
NOTE
®
, it sends positional data to the Nano for storage, and
AIRBORNE PACKAGE
®
III installer, when
1-5