A multi-target ranging system is designed

which uses capture function of digital matching filter to implement multiple echo capture

and multi-user detector processes the captured and uses phase detector to get the time difference of arrival

so the measurement of multi-target in the same direction can be completed.Compared with traditional ranging

multi-target ranging can support mulitiple targets simultaneously in only one ranging process in ranging direction and area

the practicability and flexibility of ranging system is also improved.