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您好: 我想请教一下,(ephemeris->eph = (eph_t *)malloc(sizeof(eph_t) * MAXSAT * 2))为什么要申请两倍的内存空间?是为了存储前后两个历元的星历数据还是其他用途? 期待您的回复,感谢!
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另外,我还想请问一下input_rtcm2函数的处理逻辑是什么,一次只返回一个历元的观测或一颗卫星的星历?
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是的,两倍空间是为了存储前后两个星历周期的星历数据。
input_rtcm2函数就是对rtcm2数据流的解码,根据rtcm数据协议的定义,一包数据可以包含多颗卫星的观测,但只能包含一颗卫星的星历。此外,rtcm电文还定义了其他类型的数据,比如基站坐标、SSR改正数等。详情请参考rtcm官方文档,或者源代码。
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您好:
我想请教一下,(ephemeris->eph = (eph_t *)malloc(sizeof(eph_t) * MAXSAT * 2))为什么要申请两倍的内存空间?是为了存储前后两个历元的星历数据还是其他用途?
期待您的回复,感谢!
The text was updated successfully, but these errors were encountered: