/// <summary>
/// 插值器
/// </summary>
/// <param name="prnStr"></param>
/// <returns></returns>
private SimpleClockInterpolator GetClockInterpolator(string prnStr)
{
if (clockInterpolators.ContainsKey(prnStr))
{
return(clockInterpolators[prnStr]);
}
lock (locker2)
{
if (clockInterpolators.ContainsKey(prnStr))
{
return(clockInterpolators[prnStr]);
}
if (SatelliteNumber.IsPrn(prnStr))
{
var prn = SatelliteNumber.Parse(prnStr);
var items = ClockFile.Get(prn);
if (items == null || items.Count == 0)
{
return(null);
}
var inter = new SimpleClockInterpolator(items.Values);
clockInterpolators.TryAdd(prnStr, inter);
return(inter);
}
}
return(null);
}
/// <summary>
/// 是否可用
/// </summary>
/// <param name="prn"></param>
/// <param name="time"></param>
/// <returns></returns>
public bool IsAvailable(SatelliteNumber prn, Time time)
{
string prnStr = prn.ToString();
SimpleClockInterpolator clockInterpolator = GetClockInterpolator(prnStr);
if (clockInterpolator == null || !clockInterpolator.IsAvailable(time))
{
return(false);
}
return(true);
}
/// <summary>
/// 根据接收机时间和位置，获取计算卫星发射时刻的位置。不计算相对地面的延迟。
/// </summary>
/// <param name="nameOrPrn">卫星编号</param>
/// <param name="gpsTime">时间</param>
/// <returns>如果返回 null，在表示计算失败</returns>
public override SimpleClockBias Get(string nameOrPrn, Time gpsTime)
{
SimpleClockInterpolator clockInterpolator = GetClockInterpolator(nameOrPrn);
if (clockInterpolator == null || !clockInterpolator.IsAvailable(gpsTime))
{
return(null);
}
#region czs
SimpleClockBias fittedClock = clockInterpolator.GetAtomicClock(gpsTime);
#endregion
return(fittedClock);
}
/// <summary>
/// 插值器
/// </summary>
/// <param name="prnStr"></param>
/// <returns></returns>
private SimpleClockInterpolator GetClockInterpolator(string prnStr)
{
if (clockInterpolators.ContainsKey(prnStr))
{
return(clockInterpolators[prnStr]);
}
lock (locker2)
{
if (clockInterpolators.ContainsKey(prnStr))
{
return(clockInterpolators[prnStr]);
}
var items = ClockFile.GetClockItems(prnStr);
if (items == null || items.Count == 0)
{
return(null);
}
var inter = new SimpleClockInterpolator(items);
clockInterpolators.TryAdd(prnStr, inter);
return(inter);
}
}
