现代导航
現代導航
현대도항
MODERN NAVIGATION
2015年
5期
420-423
,共4页
多站时差定位%相差定位%测距%无源定位
多站時差定位%相差定位%測距%無源定位
다참시차정위%상차정위%측거%무원정위
Multi-station Time Difference Location%Phase Difference Location%Ranging%Passive Location
和现有的三站时差定位方法相比，双基四站时差定位方法具有更高的测量精度，可避免对高重频信号测量的定位解模糊，同时相距较远的两主基站间的时间基准可以要求不同步，有利于站址的选择。本文利用相似递推的方法，以更简捷的和更严谨的方式直接从程差定位方程导出了双基四站时差测距公式。
和現有的三站時差定位方法相比，雙基四站時差定位方法具有更高的測量精度，可避免對高重頻信號測量的定位解模糊，同時相距較遠的兩主基站間的時間基準可以要求不同步，有利于站阯的選擇。本文利用相似遞推的方法，以更簡捷的和更嚴謹的方式直接從程差定位方程導齣瞭雙基四站時差測距公式。
화현유적삼참시차정위방법상비，쌍기사참시차정위방법구유경고적측량정도，가피면대고중빈신호측량적정위해모호，동시상거교원적량주기참간적시간기준가이요구불동보，유리우참지적선택。본문이용상사체추적방법，이경간첩적화경엄근적방식직접종정차정위방정도출료쌍기사참시차측거공식。
As compared to existing three stations time difference location method in two-dimension plane, the bistatic time difference location method can heighten measurement accuracy and avoid the time difference ambiguity introduced by high PRF signal. At the same time, it also has the characteristic that the time reference between two major base stations can be derangement and that looking for the building position of base station is more convenience. With the help of geometric similarity recurrence method, this paper derives the bistatic time difference ranging formula directly from path difference equation in more forthright and more religious way.
