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This package supports the parsing of AIS messages in Java. AIS, the Automatic Identification System, is a system aiming at improving maritime safety by exchanging messages between ships, other vehicles in particular aircraft involved in search-and-rescue (SAR), and (fixed) base stations. To be precise, this package support the ITU-R M.1371-4 AIS standard. See our extensive javadoc and in particular the class AISParser for more information on how to use this package. The parser was used in the Poseidon project, and is improved in the Metis project to better handle uncertain information. Both projects were led by the Embedded Systems Institute. In both projects Thales Nederlands was the carrying industrial partner, and multiple Dutch universities participated.

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package nl.esi.metis.aisparser;

/** This interface represents a message of which the receipt is acknowledged as part of an {@link AISMessageAcknowledge} message.
 * @author Pierre America
 * @author Pierre van de Laar
 */
public interface AISMessageAcknowledgeUnit {

	/** Returns the destination of this acknowledgment.
	 * @return the MMSI number of the destination
	 */
	public int getDestinationID();

	/** Returns the sequence number of the message to be acknowledged.
	 * @return the sequence number (0-3)
	 */
	public int getSequenceNumberForID();

}