CAJ | 학술논문

G PS定位是利用G PS卫星位置，以卫星天线到接收机天线的距离作为观测值来解算接收机坐标的理论和方法。伪距单点定位仅是以G PS信号中的测距码作为距离观测值以此来解算目标的坐标值及接收机钟差的方法。简单介绍了G PS 伪距单点定位的基本理论模型，分别探讨了其最小二乘解法和Kalman滤波解法。最后对两种解算结果进行对比分析， Kalman滤波能够很好的平滑解算结果，使得结果的稳定性更好。
G PS정위시이용G PS위성위치，이위성천선도접수궤천선적거리작위관측치래해산접수궤좌표적이론화방법。위거단점정위부시이G PS신호중적측거마작위거리관측치이차래해산목표적좌표치급접수궤종차적방법。간단개소료G PS 위거단점정위적기본이론모형，분별탐토료기최소이승해법화Kalman려파해법。최후대량충해산결과진행대비분석， Kalman려파능구흔호적평활해산결과，사득결과적은정성경호。
The method of Point Position using GPS makes use of GPS satellites ’positon and distances of antennas of satellites and antenna of receiver .Single point position just make use of C/A code or P code in GPS signal as observations to calculate the position of target and receiver clock-offsets .The basic theory of single point position using GPS C/A code is in-troduced ,and the application of LS and Kalman Filter in thus field is discussed .Finally the numerical example has proved that Kalman Filter could smooth results in different epoch and make results more stable .