• ??ӭ?????й????????     
  • ?ղر?վ
  • |
  • ??ҪͶ??
  • ??ע???ǣ?
  •  ΢ ??
  • Cehui8.com ????????Ϣ??ҵ??һƷ???Ż?
???????| ???????| ר??̽??| 3S| ????б?| ???չ??| ??Ʒ????| ???淶| ????????| ???ñ???| ???????| ????| ??ַ??ȫ|?˲?|??̳
??ҳ > ??????? > GPS/????

GPS?????ز???е?Ӧ??

2013-07-08 21:46:21????Դ: ?????̳?????ߣ?
????
   l.????

      GPS???????????ƣ??Կ???????Ϊ?????????ߵ絼??ϵͳ????ϵͳ??Ϊȫ???ṩȫ????????ʵʱ???߾??ȵ???άλ?ã???????෽???????ĿǰGPS???????㷺Ӧ???ڵؼ???桢????滮????????Դ??????????ȶ????򾮷??Ӿ޴????á?

     2. GPS?ڵؼ?????е?Ӧ??

     2.1 GPS?ڵؼ????Ʋ????е?Ӧ??λ??̫ԭ?зں??????????????????ź鹵?Σ?ȫ??Լ14km??Ϊ???еؼ????飬???Ǿ?ʵ??̤????????????D??GPS????????

     2·1·1??λ????

??????????7??????ɣ?7????ȫ??λ????Ұ?????????????????????ֶ???չ??????ĵط?????????3????Ϊ1954??̫ԭ????ϵ?е????ȵ㣬ͬʱҲ??Ϊ?????????????????ݣ?7?????Ƶ????С??? 24km??????? 6??4km???????λ??ͼһ??ʾ??
ע?? kz1    kz2    kz3Ϊ???ȵ?

     2·1·2?۲ⷽ??

??GPSD??????Ҫ?󣬶???????????????֯???۲?֮ǰ????????Ԥ???????ʵ???????ѡ????ʹ۲?ʱ???Ա?֤???ȡ?
  ?۲???Ҫ????Ҫ??
  ?۲?ʱ??≥60???ӡ????????Ǹ߶Ƚ?≥15??
  ?۲?????≥4?š??????????۲?ʱ????≥2
pdop≤10

     2·l·3?۲?ɹ??????ȷ???

GPS???߽????ƽ???????????????GpsurveyZ??35?н??У??ڻ???ȫ???ϸ?󣬷ֱ???WGS84?ͱ???54????ϵ?н???ƽ????㣬????ɹ????Ϲ淶????Ҫ??󣬰?????ģ??ת??Ϊ̫ԭ54?????????????λ???????СΪ1??ZCM?????Ϊ3CM???ɴﵽ?ĵ????ľ???Ҫ??

     2·2?? GPS?????????ַ?ⶨ??

?ؼ???????Ŀ???Dzⶨÿ?ڵص?Ȩ??????ַ???㡢?ߡ?λ?á???״???????Ȼ???????????ľ?????Σ?ֱ??Ӱ??ؼ???????׼ȷ?Ժ?Ȩ???ԡ?????ɽ??ʡ?ؼ?????ʵʩϸ??Ҫ???ַ????ڽ?ͼ?????λ?????Ϊ5—7??SCM????˸ߵĶ??ξ??ȣ??????ø߾??ȵ??????ֳ?ʩ????ܴﵽ??????GPS??RTK????Ҳ??????????????Ҫ??RTK???ز???λʵʱ??̬??ֶ?λ??ʵʱ?????ܴﵽ???׼????ȣ?Ʃ??Trimble4800??ʵʱ????ˮƽ????Ϊ±??13?? cm??2ppm??

     3.GPS?????ڿ??ⶨ??????ض?̬????е?Ӧ??

?????õؿ??ⶨ????ȷ???????õص?λ?á?????ȷ???IJ?棬??Ϊ?????????????õ??ṩ???????ݡ?????GPS??RTK???????п??ⶨ?磬??ȫ?????㽨???õؿ????ַ????????ڽ?ͼ?????λ??????ַ?????ڽ???????ڽ????ߵľ???????????10cm?ľ???Ҫ????Ч?ʸߣ???????????С???ر??Ƕ???·????·??????????״?õ?Ч????Ϊ???ԡ?

      ???????ö?̬????Ƕ????????õı仯״?????м?ʱ׼ȷ?ĵ??飬Ϊ??????????????Դ??Ϊ?????͸??????ع????????ƶ????????ߣ???ʵ???ֹ?????ʩ?ṩ???ݡ???ͳ??Ұ????????????????????εȶ෽?????ص???Լ?????Ҳ??ܼ?ʱ??ӳ???????õĶ?̬?仯??ʹ???ֳ?ʽ?????GPS???ջ????ܿ??ٺͷ???ز????㡢?ߺ??棬????¼?????涨????????Ϣ???ֳ?ʽ?????GPS???ջ??????ڸ???????????ؼ?⣬??ָ????󾫶ȿ??Դﵽl——5m???ӷ??׼?????????λ???ȴ???0.5m???侫????ȫ??????????????״???鼰???ض?̬???ľ???Ҫ???д?ͳ?????޷???????ٶȿ졢Ч?ʸߵ??ص㡣

     4.GPS?????ڽ????ؼ???Ϣϵͳ?е?Ӧ??

?ؼ???Ϣϵͳ??Ҫ???????????ߡ??ڵؽ??ߺ??ڵ????Լ??ر???????ļ???λ?á???״??ٻ?????ؼ???Ϣϵͳ?ľ????ܿ????????ȵ?Ӱ?졣?ؼ???Ϣ??ʱЧ?ԣ??????˵ؼ???Ϣ??????ж?̬???¹??ܡ?????GPS??λ???????????Ϣϵͳ???ݵIJɼ?????¼?????????????????ݿ⣬??Ϊ??Ϣϵͳ???ִ??????Զ????????绯??չ?춨??ʵ?Ļ?????ʹ?????µ?GPS PruXR??ProXRSϵͳ???û??????ڶ?ʱ???ڲɼ????߾??ȵ????ݣ????Թ??ɳ?ͼ??GISӦ?õ?ǿ?󹤾ߡ?

     5.??????

????GPS????ȫ??λ?????ķ?չӦ?ã??????²????ҵһ????̵ļ??????????ر???3S?????Ľ?ϣ?GPS?????????ز???е????ý???Ϊ??Ҫ??????????ʱ?䣬????˾??ȣ??ɲ????޴?ľ???Ч?档
??Ȩ????????վ??????????Դ?????磨??????Ͷ?壩????????Ȩ??????ϵ????ɾ????????