CAJ | 학술논문

针对移动终端精确定位的需求，分析了基于TDOA无线定位技术，将二维的定位推广到三维空间，推导了三维空间的Chan算法。同时，针对TDOA定位技术的准确性与精确的测距密切相关，采用Kalman滤波技术进行优化，获得了准确的终端与各基站的距离差，提升了定位的准确性。仿真结果显示，优化后的三维Chan定位算法，能够获得更加精确的三维定位信息。
침대이동종단정학정위적수구，분석료기우TDOA무선정위기술，장이유적정위추엄도삼유공간，추도료삼유공간적Chan산법。동시，침대TDOA정위기술적준학성여정학적측거밀절상관，채용Kalman려파기술진행우화，획득료준학적종단여각기참적거리차，제승료정위적준학성。방진결과현시，우화후적삼유Chan정위산법，능구획득경가정학적삼유정위신식。
According to the needs of pinpointing of mobile terminal, this paper analyses wireless location technology based on TDOA. Extending the existing two-dimensional location algorithms to three-dimen-sional space, we derive the Chan algorithm of 3 di-mension space. The location technology's accuracy based on TDOA depends heavily on ranging. Optimiz-ing it with Kalman filtering technology, we could ob-tain an accurate range distance between the terminal and the base station, and improve the location accura-cy. The simulation results show that the 3D-Chan lo-cation algorithm could achieves more accurate 3D lo-cating information.