In the former , we measure the output of mutiposition within the range of 360 degrees , then get the north angle which fitting the data with minimum square error or dft 在找北方案中利用360范圍內(nèi)進(jìn)行多位置測(cè)量,然后進(jìn)行最小方差擬合或者對(duì)數(shù)據(jù)進(jìn)行數(shù)字傅里葉變換得到北向角。