CAJ | 학술논문

目前，定位某个目标一般采用的是GPS定位技术，但是GPS定位技术需要至少接收到4颗GPS卫星信号，才可以确定目标的位置，当某目标运动到室内或高楼耸立的大城市中时，因为受到高楼的遮挡，使得接收机因接收不到卫星的全部信号而无法完成对目标位置的准确定位．为解决这一问题，文章研究了基于数字电视信号（DTV）的定位技术，利用电视台发出的数字电视信号辅助GPS进行联合定位，从而实现目标的无线定位跟踪．、
목전，정위모개목표일반채용적시GPS정위기술，단시GPS정위기술수요지소접수도4과GPS위성신호，재가이학정목표적위치，당모목표운동도실내혹고루용립적대성시중시，인위수도고루적차당，사득접수궤인접수불도위성적전부신호이무법완성대목표위치적준학정위．위해결저일문제，문장연구료기우수자전시신호（DTV）적정위기술，이용전시태발출적수자전시신호보조GPS진행연합정위，종이실현목표적무선정위근종．、
GPS technology is commonly used to locate a target, while GPS technology can only determine the location of the target by receiving at least four GPS satellites signals and when a target moves indoors or high- rise towers in large cities, the exact location of the target can not be completed because the receiver can not receive satellite signals. To solve this problem, the paper studies positioning technology by the opportunity digital television signal （DTV） and puts forwards the combination method by which GPS wireless location tracking can be completed with the help of digital TV signals.