Ads
related to: marine collision avoidance radar
Search results
Results From The WOW.Com Content Network
With each rotation the beam scans the surrounding surface. Any ships or obstructions reflect microwaves back to the antenna, displaying on the radar screen. Marine radars are X band or S band radars on ships, used to detect other ships and land hazards, to provide bearing and distance for collision avoidance and navigation at sea. [1]
A typical shipboard ARPA/radar system. A marine radar with automatic radar plotting aid (ARPA) capability can create tracks using radar contacts. [1] [2] The system can calculate the tracked object's course, speed and closest point of approach [3] (CPA), thereby knowing if there is a danger of collision with the other ship or landmass.
Mini-automatic radar plotting aid (or MARPA) is a maritime radar feature for target tracking and collision avoidance. Targets must be manually selected, but are then tracked automatically, including range, bearing, target speed, target direction (course), CPA (closest point of approach), and TCPA (time of closest point of approach), safe or dangerous indication, and proximity alarm.
Rule 7 – Risk of Collision. [11] This rule requires all vessels to use all available means to determine if a risk of collision exists. [11] These include the proper use of marine radar and the taking of bearings by ship's compass to determine if there is a steady bearing and risk of collison. [11] Rule 8 – Action to Avoid Collision.
The company just unveiled its new crash-avoidance system, which, like other concepts we've seen, uses millimeter-wave radar technology to detect pedestrians and bicyclists.
Marine radars are used by ships for collision avoidance and navigation purposes. The frequency band of radar used on most ships is X band (9 GHz/3 cm), but S band (3 GHz/10 cm) radar is also installed on most oceangoing ships to provide better detection of ships in rough sea and heavy rain condition.
AIS information supplements marine radar, which continues to be the primary method of collision avoidance for water transport. [citation needed] Although technically and operationally distinct, the ADS-B system is analogous to AIS and performs a similar function for aircraft.
Both aircraft were likely fitted with collision avoidance systems—and experts are asking why they failed. There are now more than 300 responders now on the scene of the "highly complex" operation.