A method for locating a plurality of elements comprising a flexible ultrasound phased array. The method includes constructing a matrix of traveltimes by iteratively transmitting a signal from one element of the plurality and receiving the signal at each of the other elements of the plurality. Traveltimes are derived from each received signal and arrayed in a matrix. Relative positions of the first element of the plurality and the last element of the plurality are established and the locations of the remaining elements of the plurality are iteratively modeled to fit the matrix of traveltimes.