|A/AMP Amperes||LONG Longitude|
|ABS American Bureau of Shipping (Class Society)||LSZH Low Smoke Zero Halogen|
|ACP Azimuth Change Pulse||m Metre|
|ADCP Acoustic Doppler Current Profiler||m/s Metre per second|
|ADF Automatic Direction Finder||MAC Machinery Alarm & Controls|
|AIS Automatic Identification System||MARPOL Marine Pollution Prevention|
|AFC Automatic Frequency Control||MB Megabyte|
|AHT Anchor Handling Tug||MHz Megahertz|
|AHTS Anchor Handling Tug Supply Vessel||MoComp Motion Compensation|
|ALRM Alarm||M/V or MV Motor Vessel|
|AMSA Australian Maritime Safety Authority||MOB Man Overboard|
|ARP Azimuth Reset Pulse||NM Nautical Mile(s), also seen as M, nmi|
|ARPA Automated Radar Plotting Aid||NMEA National Marine Electronics Association|
|ATON Aid to Navigation||NOFO Norwegian Clean Seas Association for Operating Companies|
|BIST Built-in System Test||ns Nanosecond|
|BV Bureau Veritas (classification society)||Θs Peak Wave Direction|
|CBT Computer-based training||Θu Surface Current Direction|
|CFAR Constant False Alarm Rate||OSD/OIL Oil Spill Detection|
|COG Course Over Ground||OSRO Oil Spill Response Organization|
|CPA Closest Point of Approach||OSRV Oil Spill Recovery Vessel|
|CRS Course||OSV Offshore Supply Vessel|
|CTV Crew Transfer Vessel||OWF Offshore Wind Farm|
|° Degree||OWS OceanWaveS GmbH|
|Dec Decimal Degrees||Pd Probability of Detection|
|DGPS Differential Global Positioning System||PERFMON Performance Monitor|
|DM Degrees, Minutes||PFa Probability of False Alarm|
|DMS Degrees, Minutes, Seconds||PIW Person in Water|
|DNV Det Norkse Veritas||PLEN Pulse Length|
|DP Dynamic Positioning||PPS Pulse per Second|
|DR Dead Reckoning||PRF Pulse Repetition Frequency|
|DWFA Directional Wave Finding Algorithm||R&D Research and Development|
|E&P Exploration and Production||Racon Radar Transponder Beacon|
|EBL Electronic Bearing Line||RADAR Radio Direction and Range|
|ECDIS Electronic Chart Display and Information System||RCS Radar Cross-Section|
|EMER Emergency||RCU Radar Configuration Utility|
|ENC Electronic Navigation Chart||Rge/Brg Range/Bearing|
|EO Electro-Optical||RIB Rigid Inflatable Boat|
|ESRI Environmental Systems Research Institute||RMRS Russian Maritime Register of Shipping|
|FAT Factory Acceptance Test||RoHS Restrictions of Hazardous Substances|
|FFT Fast Fourier Transformation||RPT Repetition (used for the radar repetition frequency)|
|ft feet||RSi Radar Signal Interface|
|FPSO Floating Production, Storage, and Offloading||RX Receive|
|FRB Fast Rescue Boat||SAR Synthetic Aperture Radar|
|FRC Fast Rescue Craft||SAR Search And Rescue|
|FRV Fast Response Vessel|
|GALILEO Global Positioning System (Europe)||SART Search And Rescue Transponder|
|GB Gigabyte||SAT Ship/Site Acceptance test|
|GIS Geographic Information System||sec Second|
|GL Germanischer Lloyd (German Class Society)||SF SeaFusion|
|GLONASS Global Navigation Satellite System||SNR Signal to Noise Ratio|
|GMDSS Global Maritime Distress and Safety System||SOG Speed Over Ground|
|GMT Greenwich Mean Time||SOLAS Safety of Life at Sea|
|GPS Global Positioning System||SPD Speed|
|GUI Graphical User Interface||SSE Sea Surface Elevation|
|HDR High Definition Radar||ST Server Time|
|HELO Helicopter||STAT Status|
|HH Horizontally Polarized Radar Antenna||STBL Stabilized|
|HMAX Maximum Wave Height||STBYTX Standby Transmit|
|HPOL Horizontally Polarized||STC Sensitivity Time Control|
|HRC High Resolution Current||STS Small Target Security/Surveillance|
|HSC High Speed Craft||STW Speed Through the Water|
|HSE Health, Safety and Environment||Tp Peak Wave Period|
|Hs Significant Wave Height||TB Terabyte|
|Hz Hertz||TRIG Trigger|
|IALA International Association of Lighthouse Authorities||TTM Target Tracking Message|
|IBS Integrated Bridge System||TX Transmit|
|IEC-60945 Certification for Marine Computers and Bridge Electronic Systems||TXRX Transmit/Receive|
|IEEE Institute of Electrical and Electronics Engineers||U(u) Surface Current Speed|
|IN/ICE Ice Navigator™||UTC Coordinated Universal Time|
|INS Integrated Navigation System||V Volts|
|IMO International Maritime Organization||VPOL Vertically Polarized|
|IR Infra-Red||VRM Variable Range Marker|
|ISPS International Ship and Port Facility Security||VTIS Vessel Traffic Information System|
|IT Information Technology||VTMIS Vessel Traffic Management and Information System|
|JIP Joint Industry Project||VTMS Vessel Traffic Management System|
|KHz Kilohertz||VTS Vessel Traffic System/Service|
|Kph Kilometers per Hour (km/h)||VV Vertically Polarized Radar Antenna|
|KW Kilowatt||WAAS Wide Area Augmentation System|
|λp Peak Wave Length||WaMoS® Wave and Surface Current Monitoring System|
|LAN Local Area Network||WAN Wide Area Network|
|LAT Latitude||XPOL Dual/Cross Polarized|
sigma S6 OSD Oil-on-Water Test
This video shows the result of an oil-on-water exercise where two separate oil releases were made and detected by the sigma S6 OSD system, which then alerted the operator. The two spills were then acknowledged by the operator, the system automatically outlined them and began tracking their movement.
Scuba Ice Trial
Rutter Inc. participated in an ice trial with the U.S. Coast Guard in the Great Lakes wherein a vessel released a scuba diver into the water. This video shows the diver emerging from below the ice and swimming towards the vessel.
Ice Flow by Port Vladivostok
This video shows February ice flowing by the VTS Center of Port Vladivostok in Russia, with the imaging made up of 5-minute screen shots of the sigma S6 system. Screen shots courtesy of the Cord Group – a dealer in the Rutter Inc. sales network
Frequently Asked Questions
FAQ - sigma s6 Systems
Rutter’s sigma S6 radar systems can send commands via Serial data connection to the camera to slew it to a selected radar target. A future sigma S6 software release (estimated 2014) will provide integration of full control and video window in the sigma S6 radar display.
FLIR Voyager II http://www.flir.com/cs/emea/en/view/?id=41914
FLIR M series http://www.flir.com/cvs/americas/en/maritime/view/?id=50777
Sigma S6 automatically detects and outlines the areas of oil spills. By experience, knowing the type of oil (viscosity), by the color of the oil sheen, the operator may estimate the thickness of the oil slick and assign up to 8 estimated thickness values for different gradations of grey from the radar screen.
The system would then automatically calculate the total estimated volume of oil within the outline polygon.
Capillary wave, small, free, surface-water wave with such a short wavelength that it’s restoring force is the water’s surface tension, which causes the wave to have a rounded crest and a V-shaped trough. The maximum wavelength of a capillary wave is 1.73 centimeters (0.68 inch); longer waves are controlled by gravity and are appropriately termed gravity waves. Unlike the velocity of gravity waves, the velocity of capillary waves increases with decreasing wavelength, the minimum velocity being 23.1 centimeters per second (9.09 inches per second), where the wavelength is the maximum 1.73 cm. [Encyclopedia Britannica, 2013, http://www.britannica.com/EBchecked/topic/93834/capillary-wave]
· Small Target Detection for security and surveillance of national critical infrastructure
· Wave Height & Ocean Current measurements (wave spectra, based upon WaMoS system integration)
b) Shanghai Tech Marine Co. (China Government [co-owner]), Pollution Control Vessel
c) Kiyi Emniyeti (Turkey Government [co-owner]), Pollution Control Vessel
MSRC (USA) oil recovery (2011, 2012)
Shell (Brazil) oil spill incident (2012)
Oil in Ice incident detection and recovery (Norway 2011, Godafoss carrier)
USCG Oil in Ice Exercise (Hollyhock 2013)
Maximum detection volume is unknown, but a measured 1000L was noted volume during NOFO oil in water exercise.
No known or observed limitations of currents or their interactions on oil spill dispersion.
Recommended to use a minimum 8ft VPOL antenna (HPOL can also be used, but VPOL gives improved detection capability).
Radar to operate on Short Pulse settings, with highest PRF.
There are no problems with wind. Rutter has successfully detected 15L of oil in 45kt winds during an acceptance test in Spain.
We can, however, confirm that our OSD system has been found operationally satisfactory for NOFO mode of operation.
The OSD-500 system is able to display OSD information on the screen, which includes oil detection, oil trace, time, location, area and drift as well as wind direction.
SeaFusion will allow the combination of 2, 3 or 4 radars to achieve the full 360 degree view. It will present the full 360° view to the end user. The radars must be supplied by same manufacturer, i.e. JRC+JRC+JRC, Furuno+Furuno, it cannot be JRC+Furuno.
However, large targets can be detected in precipitation with the S-Band radar.
- High-resolution signal and image processing
- Advanced suppression of noise and clutter
- Motion compensation by using multiple scan averaging
- Additional user options for signal filtering or linearity of amplification or image processing
Also: All these go into the target detection formula as “Processing Gain.”
This may be of great value for search and rescue.
The technology helps for early detection of possible dangerous vessels, e.g. speedboats or pirates.
Fast boats are then not detected by their spot positions, but by their bow or stern waves.
Telephone support is available if e-mail support cannot resolve the issue.
To ensure as smooth an installation as possible for our clients, Rutter always seeks to establish concise and clear communication between our technical department and the customer.
FAQ - WaMos
The radar must operate in short pulse (near range), which corresponds to about 70 ns, otherwise the sea clutter reflections are too weak.
But we also have installations by having antenna heights up to 100 m.
Ship speed over ground, track over ground, Gyro compass, GPS position, GPS time and water depth must be made available via NMEA (complying with NMEA 0183 standard).
Further information, i.e. wind speed and direction as NMEA input, is not mandatory but would valuable additional input.
Heavy rain showers have an effect on the roughness of ocean surface and therefore on the small ripples. The short surface ripples and, in this context, the sea clutter are getting disturbed by rain showers. The backscatter is different without rain.
PC with LCD Monitor: approx. 200W
Radar, e.g. Kelvin Hughes 300W (250W in Standby)
The quality control is carried out during the wave analysis and the index (IQ) is given in the header of the WaMoS II data products as well as listed for each data measurement in the time series.
The support can also be done via telephone if e-mail support is not sufficient enough.
After the system has been installed by one of our engineers, he or she will already do a preliminary adjustment for the wave heights (depending on the prevailing conditions). WaMoS will then collect data over 7-14 days. (The best data always results from an increasing or decreasing wave/wind situation.) All data is stored on the PC and we would request some small files that can be sent by e-mail to us, with a reference source. Ideal would be a nearby in-situ data set or a numerical model output. We then calibrate the system and sent a new configuration file back that needs to be copied in the main directory. All information, which files are needed and where to copy the new configuration file will be given on the site during the installation process.
Spatial averaging is accomplished according to the analysis areas (maximal 9 windows). The temporal averaging data records depend on the settings in the WaMoS II software (default setting: 20 minutes).
The WaMoS II data files ‘PARA’ and ‘PEAK’ are time series of the single measurement; the data files ‘MPAR’ and ‘MPEK’ are time series of temporally averaged measurement.
Environmental limitations: The imaging mechanism for waves in any kind of X-band radarrequires a minimum wind speed of 3 m/s, otherwise the waves are not reflected in the radar. In addition, significant wave heights below 0.5 m can not be resolved by the system. Heavy persistant rain showers will also not allow for wave measurments, as those disturb the reflecting ripple waves on the sea surface and the radar reflections become very strong.
*) There is no limit in estimating the wave heights, but up to now Hs of 14 m was the highest value measured with WaMoS® II
**)These calues indicate the typical range by using an antenna with 1.4s repetition time. But it depends very much on the radar hardware, the total time of measurement and therefore can vary for each individual installation.
***) Based on comparative wave measurments taking into account an equally distributed error.