2020-12-27

最新推荐文章于 2021-12-29 16:59:47 发布

原创最新推荐文章于 2021-12-29 16:59:47 发布 · 152 阅读

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该博客汇总了RTKLIB的参考文献，资源均来自网络，旨在方便大家学习，文中给出了具体的参考链接。

rtklib 参考文献大全

所以资源来自于网络，汇总方便于学习

1 https://blog.youkuaiyun.com/wuwuku123/article/details/106406770 RTKLIB MANUAL 之 Instructions 第一部分

static void detslp_ll(rtk_t *rtk, const obsd_t *obs, int i, int rcv)
{
    unsigned int slip,LLI;
    int f,sat=obs[i].sat;
    
    trace(3,"detslp_ll: i=%d rcv=%d\r\n",i,rcv);
    
    for (f=0;f<rtk->opt.nf;f++) {   //nf是频点个数(1:L1,2:L1+L2,3:L1+L2+L5)
        
        if (obs[i].L[f]==0.0||
            fabs(timediff(obs[i].time,rtk->ssat[sat-1].pt[rcv-1][f]))<DTTOL) {
            continue;
        }
        /* restore previous LLI */
        if (rcv==1) LLI=getbitu(&rtk->ssat[sat-1].slip[f],0,2); /* rover */
        else        LLI=getbitu(&rtk->ssat[sat-1].slip[f],2,2); /* base  */
        
        /* detect slip by cycle slip flag in LLI */
        if (rtk->tt>=0.0) { /* forward */
            if (obs[i].LLI[f]&1) {
                errmsg(rtk,"slip detected forward  (sat=%2d rcv=%d F=%d LLI=%x)\r\n",
                       sat,rcv,f+1,obs[i].LLI[f]);
            }
            slip=obs[i].LLI[f];
        }
        else { /* backward */
            if (LLI&1) {
                errmsg(rtk,"slip detected backward (sat=%2d rcv=%d F=%d LLI=%x)\r\n",
                       sat,rcv,f+1,LLI);
            }
            slip=LLI;
        }
        /* detect slip by parity unknown flag transition in LLI */
        if (((LLI&2)&&!(obs[i].LLI[f]&2))||(!(LLI&2)&&(obs[i].LLI[f]&2))) {
            errmsg(rtk,"slip detected half-cyc (sat=%2d rcv=%d F=%d LLI=%x->%x)\r\n",
                   sat,rcv,f+1,LLI,obs[i].LLI[f]);
            slip|=1;
        }
        /* save current LLI */
        if (rcv==1) setbitu(&rtk->ssat[sat-1].slip[f],0,2,obs[i].LLI[f]);
        else        setbitu(&rtk->ssat[sat-1].slip[f],2,2,obs[i].LLI[f]);
        
        /* save slip and half-cycle valid flag */
        rtk->ssat[sat-1].slip[f]|=(unsigned char)slip;
        rtk->ssat[sat-1].half[f]=(obs[i].LLI[f]&2)?0:1;
    }
}
/* detect cycle slip by L1-L2 geometry free phase jump -----------------------*/

https://www.zybuluo.com/MinLily/note/1698502