Arpa radar slayt

What is ARPA and its function?

A marine radar with automatic radar plotting aid (ARPA) capability can create tracks using radar contacts. The system can calculate the tracked object's course, speed and closest point of approach (CPA), thereby knowing if there is a danger of collision with the other ship or landmass.

What are the ARPA errors?

ARPA errors. These are caused by input errors from the radar which causes unstable computations and erratic target behaviour. Target swap. When targets become very close to one another it could confuse the ARPA computer and cause it to swap the data computed for one to the other vessel.

How does ARPA radar work?

Working of ARPA ARPA (Automatic Radar Plotting Aid) is a computerised additional feature to the Radar. ARPA takes feed of the own ships course and speed, and target's course and speed, and calculates the collision avoidance data and simplifies the need for the users to calculate the data themselves.

What is ARPA system display characteristics?

ARPA Features On-screen digital readouts of range, bearing, course, speed, CPA, TCPA, BCR (Bow Crossing Range) and BCT (Bow Crossing Time) of two targets out of all tracked targets.

What is ARPA radar overlay?

“A radar overlay is the best means of verifying cartographic data and output of navigation sensors.” The technology includes the digital integration of radar data over a National Marine Electronics Association protocol. This allows the input of tracked target data into ecdis, provided the radar has ARPA functionality.

What does ARPA stand for?

ARPA

What are the limitation of an ARPA?

ARPA processes radar information much more rapidly than conventional radar but is still subject to the same limitations. ARPA data is only as accurate as the data that comes from inputs such as the gyro and speed log.