ElevationCell CreateElevationCell(byte[] data, int begin)
{
int elIndex = 0;
int pos = begin;
//计算仰角单元编号
for (int i = 0; i < ElevationCell.HeadLength; i++)
{
elIndex = elIndex << 8;
elIndex += data[pos++];
}
ElevationCell elCell = new ElevationCell(elIndex);
//生成距离单元
for (int i = 0; i < ElevationCell.DistanceCellsCount; i++)
{
DistanceCell cell = new DistanceCell(data, pos);
pos += DistanceCell.TotalLength;
if (Pass(cell))
{
elCell.AddDistanceCell(cell);
}
}
return(elCell);
}
public AzimuthCell(byte[] data)
{
DisCells = new Dictionary <int, DistanceCell>();
int angleI;
(Angle, angleI) = GetAngleFromCycleData(data);
int cellCount = Tools.MakeInt(data, HeadLength + AzimuthLength, DistanceCellCountLength);
int pos = DistanceCellsDataStartPosition;
for (int i = 0; i < cellCount; i++)
{
if (pos + DistanceCell.Length >= data.Length) //数据溢出判断
{
break;
}
var cell = new DistanceCell(data, pos)
{
az = Angle, azInt = angleI
};
if (DistanceCellFilter.Pass(cell) && !DisCells.ContainsKey(cell.index)) //滤波
{
DisCells.Add(cell.index, cell);
}
pos += DistanceCell.Length;
}
}
protected override bool Pass(DistanceCell cell)
{
int sum = 0;
for (int i = 1; i < DistanceCell.AMCount; i++)
{
sum += cell.speedAM[i];
}
if (sum == 0) //1-7号速度回波幅度都是零则丢弃该距离单元
{
return(false);
}
else
{
return(true);
}
}
ElevationCell CreateElevationCell(byte[] data) //基于数组拷贝的算法
{
int elIndex = data[0]; //第一个8位为仰角单元编号
ElevationCell elCell = new ElevationCell(elIndex);
int pos = ElevationCell.HeadLength; //从取完仰角包头的位置开始创建距离单元
byte[] tmp = new byte[DistanceCell.TotalLength]; //存放一个距离单元数据的缓存
for (int i = 0; i < ElevationCell.DistanceCellsCount; i++) //根据一个仰角单元包含的距离单元的个数，循环创建距离单元
{
System.Buffer.BlockCopy(data, pos, tmp, 0, tmp.Length);
//创建距离单元对象
DistanceCell cell = new DistanceCell(tmp);
if (Pass(cell))
{
elCell.AddDistanceCell(cell);
}
pos += DistanceCell.TotalLength; //指向下一距离单元
}
return(elCell);
}
protected abstract bool Pass(DistanceCell cell);
public void RemoveDistanceCell(DistanceCell cell)
{
disCells.Remove(cell.Index);
}
public void AddDistanceCell(DistanceCell cell)
{
disCells.Add(cell.Index, cell);
}
