/// <summary>
/// 数据刚刚进入，立即执行，最优先的执行，初探
/// </summary>
/// <param name="current"></param>
public override void RawRevise(RinexEpochObservation current)
{
//时段过滤
if (Option.IsEnableTimePeriod)
{
if (!Option.TimePeriod.Contains(current.ReceiverTime))
{
current.Clear(); return;
}
}
//采样率时间赋值
if (this.CurrentIndex == 0 || this.CurrentIndex == -1)
{
this.CurrentIndex = 1;
InitSeconds = current.ReceiverTime.DateTime.TimeOfDay.TotalSeconds;
if (Option.IsEnableInterval && Option.Interval > 1 && InitSeconds % 5 != 0) // 若非0, 5秒整数倍的采样间隔，则强制采用10秒整数倍间隔
{
InitSeconds = 0;
}
}
//采样间隔过滤
if (Option.IsEnableInterval)
{
//首先考虑采样率大于1s
var diff = Math.Round(current.ReceiverTime.DateTime.TimeOfDay.TotalSeconds - InitSeconds) % Option.Interval;
if (diff > 0.5 && Option.Interval > 1)//相差0.5s，认为是同一个历元
{
current.Clear();
return;
}
//采样率太小，直接过滤
if (current.ReceiverTime - PrevOkEpoch < Option.Interval)
{
current.Clear();
return;
}
//10s 以上的整数必须为10倍的整数秒，如 30s采样率，只能出现 00 和 30 秒
if (Option.Interval >= 10 && Option.Interval <= 30 && current.ReceiverTime.Seconds % Option.Interval > 1)
{
current.Clear();
return;
}
}
//移除其它系统
if (Option.IsEnableSatelliteTypes)
{
current.RemoveOther(Option.SatelliteTypes);
}
//观测类型过滤凭借第一字母判断，此处过滤可以加快速度，避免多余计算
if (Option.IsEnableObsTypes)
{
current.RemoveOthers(Option.ObsTypes);
}
//删除观测频率
if (Option.IsEnableRemoveIndicatedFrequence)
{
current.RemoveFrequences(Option.FrequenceNumToBeRemoved);
// log.Info("除频率：" + Geo.Utils.StringUtil.ToString(Option.FrequenceNumToBeRemoved));
}
//移除不能组成电离层组合的卫星
if (Option.IsRemoveIonoFreeUnavaliable)
{
List <RinexSatObsData> list = new List <RinexSatObsData>();
foreach (var sat in current)
{
if (!sat.IsIonoFreeCombinationAvaliable)
{
list.Add(sat);
}
}
foreach (var item in list)
{
current.Remove(item.Prn);
}
}
//移除卫星中对于双频无电离层组合多余的观测值
if (Option.IsRemoveRedundantObsForIonoFree)
{
foreach (var sat in current)
{
sat.RemoveRedundantObsForIonoFree();
}
}
//观测码数量不足的移除
if (ObsCodesToBeRemove != null && ObsCodesToBeRemove.Count > 0)
{
foreach (var sat in current)
{
if (!ObsCodesToBeRemove.ContainsKey(sat.Prn.SatelliteType))
{
continue;
}
var codes = this.ObsCodesToBeRemove[sat.Prn.SatelliteType];
foreach (var item in codes)
{
sat.Remove(item);
}
}
}
//移除指定卫星
if (Option.IsEnableRemoveSats && Option.SatsToBeRemoved != null && Option.SatsToBeRemoved.Count > 0)
{
current.Remove(Option.SatsToBeRemoved);
}
//卫星高度角过滤
if (Option.SatCutOffAngle.Enabled && !XYZ.IsZeroOrEmpty(OldHeader.ApproxXyz))
{
//如果星历范围不包括，则不做更改
if (EphemerisService.TimePeriod.Contains(current.ReceiverTime))
{
List <RinexSatObsData> list = new List <RinexSatObsData>();
foreach (var item in current)
{
var eph = EphemerisService.Get(item.Prn, current.ReceiverTime);
Polar polar = null;
if (eph != null)
{
polar = CoordTransformer.XyzToGeoPolar(eph.XYZ, OldHeader.ApproxXyz);
}
//移除了没有星历的卫星
if (polar == null || polar.Elevation < Option.SatCutOffAngle.Value)
{
list.Add(item);
}
}
foreach (var item in list)
{
current.Remove(item.Prn);
}
}
}
//删除指定数据为空的卫星
if (Option.IsDeleteVacantSat)
{
List <SatelliteNumber> tobeDeletes = new List <SatelliteNumber>();
foreach (var sat in current)
{
foreach (var item in Option.NotVacantCodeList)
{
if (sat.TryGetValue(item) == 0)
{
tobeDeletes.Add(sat.Prn);
}
}
}
current.Remove(tobeDeletes);
}
base.RawRevise(current);
//小时段过滤
if (Option.IsEnableMinEpochCount)
{
SmallObsPeriodRemover.Revise(ref current);
}
}