Introduction
The WaveGuide Onboard is a highly accurate wave and waterline monitoring system for
use on floating vessels. The system is robust, easy to install and explosion proof.
The WaveGuide Onboard includes two built-in sensors:
• A radar sensor that measures the distance to the water surface.
• An inertial measurement unit (IMU sensor) allows for motion compensation.
The WaveGuide radar is a low power X-band FMCW radar that measures the distance to
the water surface with an accuracy of < 1 [cm]. The IMU sensor measures acceleration and
hence requires a band-pass filter and a double integration cycle to obtain translation. The
position of the water surface is obtained by subtracting the calculated translation (IMU)
from the measured distance to the water surface (radar).
Filtering, integrating and aligning the raw data signals causes a 100 to 120 [sec] delay in
calculating resultant heave data. That in turn is further processed to provide wave height
parameters and wave spectra.
The measurements and calculated parameters are stored on the system and made available
to the user via a web-based interface or as a stream of UDP messages.
This manual describes the Explosion proof version of the WaveGuide Onboard system.
Please refer to the Radac website for all other manual versions.
Warning
Do not use the instrument for anything else than its intended purpose.
This manual consists of 4 chapters. Chapter 1 provides safety and security related informa-
tion. Chapter 2 specifies the WaveGuide radar positioning criteria for optimal measurement
quality and illustrates the mounting and installation procedure. Chapter 3 describes the
commissioning of the system via the us er interface. Chapter 4 explains data processing,
data presentation and data distribution.
Please refer to Appendix 1 for a list of measured and calculated parameters. And to
Appendix 2 for specifications, information about certification and environmental conditions
applicable to the WaveGuide Onboard system.
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