Method and system for detecting anomalies in a radar system on board of a ship

A method for detecting anomalies in a radar system (R-D) on board of a ship, comprising steps of : determining aggregate information (I-A) of a data packet received from a data communication network (NTW) based on the identification code and the technical values representative of the radar antenna unit (Al, A2, AN) extracted from the received data packet and based on additional technical values representative of the radar antenna unit (Al, A2, AN) identified by the same identification code and previously stored in the memory buffer; determining for each received data packet, a characterization (F-G) comprising the identification code and technical values representative of the radar antenna unit (Al, A2,.., AN) extracted from the received data packet, the aggregate information (I-A) determined by an aggregator sub-module (103) and an aggregate information time series associated with said radar antenna unit (Al, A2,. AN); providing the determined characterization (F-G) to a policy evaluation module (107); providing one last characterization determined for each received data packet referred to a radar antenna unit (Al, A2,..., AN ) other than the radar antenna unit (Al, A2,..., AN) from which the received data packet originates, to a policy generator module (106); selecting applicable set reference policies (P-F) based on the last characterization determined for each received data packet referred to a radar antenna unit (Al, A2,..., AN) other than the radar antenna unit (Al, A2,. AN) from which the received data packet originates, said applicable set reference policies (F-P) being selected from a plurality of candidate set reference policies (P-F' ) stored in a second database (106' ) of the policy generator module (106), each reference policy (P-F) comprising set rules representative of the expected conditions of the radar system (R-D) when operating correctly; providing said applicable selected set reference policies (P-F) to a third database sub-module (107' ) of said policy evaluation module (107); detecting the presence or absence of an anomaly in the radar system (R-D) based on the comparison between the characterization (F-G) of the received data packet provided by the shipboard collector module (101) and the applicable selected set reference policies (P-F) stored in the third database sub-module (107' ) of said policy evaluation module (107) and generating information (11) representative of an anomaly detected in the radar system (R-D).