default Effects of source and receiver positional offsets in multistatic range determination

Effects of source and receiver positional offsets in multistatic range determination. SM-432. July 2005.

During the Adults’03 sea trial (a joint research project between NATO URC and TNO-FEL, The Netherlands) a number of experiments were conducted to investigate the effects of equipment offsets in multistatic range determination. The analysis presented in this report is based on data collected during experiment P02b where the two participant ships, both towing an LFAS source-receiver pair, were arranged into an in-line configuration and proceeded with same speed and heading. The direct blast arrivals are used to acoustically calculate the distance between sources and receivers. The comparison between the expected arrival times (according to the geometry) and the measured arrival times gives an indication on how equipment offsets, latencies, positional errors and unknown sound speed effect range determination.