/// <summary>
/// 供计算点路损时使用
/// </summary>
/// <param name="structAntennaParam"></param>
/// <param name="peakTempValue"></param>
public void ConvertPolarToXY(StructAntennaParam structAntennaParam, PeakTempValue peakTempValue)
{
if (peakTempValue.PeakDot != 0)
{
float horizonAzimuth = CalculateHorizontalAzimuth(structAntennaParam.CellX, structAntennaParam.CellY, structAntennaParam.MsX, structAntennaParam.MsY);
float distanceFromTxToPeak = peakTempValue.PeakDot * peakTempValue.Resolution;
TransPolarToXYHelper(structAntennaParam, horizonAzimuth, distanceFromTxToPeak);
}
}
/// <summary>
/// 计算点到点的绕射损耗值
/// </summary>
/// <param name="altitudes">点到点连线上相关点集的海拔信息</param>
/// <param name="distance">点到点的距离</param>
/// <param name="buildHeights">点到点连线上相关点集的建筑物高度信息</param>
/// <param name="clutterTypeIDs"></param>
/// <returns>绕射损耗的值</returns>
public float GetPTPDiffractionLoss(short[] altitudes, float distance, short[] buildHeights, short[] clutterTypeIDs,PeakTempValue peakTempValue)
{
int nBinNum = altitudes.Length - 1;//海拔信息的一组点的数目
if (nBinNum >= 2)
{
this.BuildingCalculate(altitudes, ref buildHeights, nBinNum, clutterTypeIDs);
float txHeight = this.CalculateTxHeights(this.m_DifLossCalcPara, buildHeights)[0] + altitudes[0];//发射天线自高+海拔高度
float rxHeight = 0f;
rxHeight = this.CalcRxHeight(buildHeights, ref rxHeight, nBinNum, altitudes, clutterTypeIDs);
float txToRxLen = (buildHeights.Length - 1) * this.m_DifLossCalcPara.CalcResolution;//发射点到接收点的直线水平距离
float txToRxLineLen = (float)Math.Sqrt((double)((txToRxLen * txToRxLen) + ((txHeight - rxHeight) * (txHeight - rxHeight))));//发射点到接受点的直线距离
int[] buildPeakHeightIDs = ProfileEdges.SearchPeaks(buildHeights);//需要计算绕射损耗的高度点的id的集合？
if (buildPeakHeightIDs.Length == 0)
{
return 0f;
}
//需要计算绕射损耗的点的ID集合
List<int> buildPeakHeightIDList = new List<int>();
for (int i = 0; i < buildPeakHeightIDs.Length; i++)
{
float peakHeight = buildHeights[buildPeakHeightIDs[i]];
float txToPeakLevelDistance = this.m_DifLossCalcPara.CalcResolution * buildPeakHeightIDs[i];//发射点到中断点的水平距离
float peakToRxLevelDistance = txToRxLen - txToPeakLevelDistance;//中断点到接受点的水平距离
if (this.IsInFres(peakHeight, txToPeakLevelDistance, peakToRxLevelDistance, txHeight, rxHeight, txToRxLineLen))
{
buildPeakHeightIDList.Add(buildPeakHeightIDs[i]);
}
}
if (buildPeakHeightIDList.Count > 0)
{
int[] peaks = this.GetHFactorTop3Peaks(buildHeights, buildPeakHeightIDList.ToArray(), txHeight, rxHeight, txToRxLen, this.m_DifLossCalcPara.CalcResolution);
////获得基站和移动台间遮挡物信息
short mountHeight = 0;
int dotPeakIndex = 0;
int factor = 0;
for (int i = 0; i < peaks.Length; i++)//选取基站至移动台之间的最高峰
{
if (mountHeight < buildHeights[peaks[i]])
{
mountHeight += buildHeights[peaks[i]];
dotPeakIndex += peaks[i];
factor++;
}
}
peakTempValue.PeakHeight = (short)(mountHeight / (float)(factor * 2f));
peakTempValue.PeakDot = (short)(dotPeakIndex / (factor * 2f));
return this.EdgeLossSelect(buildHeights, peaks, txHeight, rxHeight, txToRxLen, txToRxLineLen);
}
}
return 0f;
}
/// <summary>
/// 计算绕射损耗
/// </summary>
/// <param name="distance"></param>
/// <param name="index"></param>
/// <returns></returns>
public float CalcDiffLoss(float distance, int index, PeakTempValue peakTempValue)
{
//没有选择绕射损耗计算方法则不计算绕射损耗值
if (m_SectionPathLossCalcParam.PropagModel.DifLossMethod == null)
{
return 0f;
}
short[] destinationArray = new short[index];
short[] buildHeights = new short[index];
short[] clutterTypeIDs = new short[index];
Array.Copy(m_AltitudeHeights, destinationArray, index);
Array.Copy(m_BuildHeights, buildHeights, index);
Array.Copy(m_ClutterTypeIDs, clutterTypeIDs, index);
return m_DiffractionLossCalulator.GetPTPDiffractionLoss(destinationArray, distance, buildHeights, clutterTypeIDs, peakTempValue);
}
//public override float[] CalculateRayPathLoss(RayMethodParam param, IPropagationModel model, ref bool isStopCalculator)
//{
// OkumuHataPropagationModel okumuHataPropagationModel = model as OkumuHataPropagationModel;
// float f = param.Frequency;
// int startIndex = param.StartIndex;
// int endIndex = param.EndIndex;
// float calcResolution = param.CalcResolution;
// float[] txEffHeight = param.TxEffHeight;
// float[] rxEffHeight = param.RxEffHeight;
// float[] numArray3 = new float[(endIndex - startIndex) + 1];
// if (okumuHataPropagationModel != null)
// {
// float num8 = this.CellSelect(f, okumuHataPropagationModel);
// float num7 = (float) Math.Log10((double) f);
// float num6 = (float) Math.Log10((double) txEffHeight[0]);
// StructAntennaParam antennaGainParam = param.AntennaGainParam;
// for (int i = 0; i < numArray3.Length; i++)
// {
// if (isStopCalculator)
// {
// return numArray3;
// }
// if ((param.TxEffHeight[i] != -32768f) && (param.RxEffHeight[i] != -32768f))
// {
// float num5 = this.GetDistance(startIndex, i, calcResolution);
// float num11 = this.AhrCalculate(f, rxEffHeight, i, okumuHataPropagationModel);
// float num9 = (i + startIndex) * calcResolution;
// float num12 = base.CalcDiffLoss(i * calcResolution, i);
// float num13 = ((((okumuHataPropagationModel.K1 + (okumuHataPropagationModel.K2 * num7)) - (okumuHataPropagationModel.K3 * num6)) + ((okumuHataPropagationModel.K4 - (okumuHataPropagationModel.K5 * num6)) * num5)) + num11) + num8;
// numArray3[i] = num13 + (num12 * okumuHataPropagationModel.KDiffraction);
// string message = string.Concat(new object[] {
// DateTime.Now.ToString("G"), ",", param.CellName, ",", param.X, ",", param.Y, ",", txEffHeight[0], ",", param.RxEffHeight[i], ",", okumuHataPropagationModel.PropModelName, ",", base.m_RayIndex, ",",
// i, ",", calcResolution, ",,,", num12, ",", num13, ",", numArray3[i]
// });
// if (base.m_Log4net.IsDebugEnabled)
// {
// base.m_Log4net.Debug(message);
// }
// }
// else
// {
// numArray3[i] = float.MinValue;
// }
// }
// }
// return numArray3;
//}
#endregion
#region modified 2012.9.24
public override float[] CalculateRayPathLoss(RayMethodParam param, IPropagationModel model, ref bool isStopCalculator)
{
OkumuHataPropagationModel okumuHataPropagationModel = model as OkumuHataPropagationModel;
float f = param.Frequency;
int startIndex = param.StartIndex;
int endIndex = param.EndIndex;
float calcResolution = param.CalcResolution;
float[] txEffHeight = param.TxEffHeight;
float[] rxEffHeight = param.RxEffHeight;
float[] numArray3 = new float[(endIndex - startIndex) + 1];
param.PeakHeightMatrix = new short[(endIndex - startIndex) + 1];
param.PeakDotMatrix = new int[(endIndex - startIndex) + 1];
PeakTempValue peakTempValue = new PeakTempValue();
if (okumuHataPropagationModel != null)
{
float num8 = this.CellSelect(f, okumuHataPropagationModel);
float num7 = (float)Math.Log10((double)f);
float num6 = (float)Math.Log10((double)txEffHeight[0]);
StructAntennaParam antennaGainParam = param.AntennaGainParam;
for (int i = 0; i < numArray3.Length; i++)
{
if (isStopCalculator)
{
return numArray3;
}
if ((param.TxEffHeight[i] != -32768f) && (param.RxEffHeight[i] != -32768f))
{
float num5 = this.GetDistance(startIndex, i, calcResolution);
float num11 = this.AhrCalculate(f, rxEffHeight, i, okumuHataPropagationModel);
float num9 = (i + startIndex) * calcResolution;
float num12 = base.CalcDiffLoss(i * calcResolution, i, peakTempValue);
param.PeakDotMatrix[i] = (int)peakTempValue.PeakDot;
param.PeakHeightMatrix[i] = peakTempValue.PeakHeight;
float num13 = ((((okumuHataPropagationModel.K1 + (okumuHataPropagationModel.K2 * num7)) - (okumuHataPropagationModel.K3 * num6)) + ((okumuHataPropagationModel.K4 - (okumuHataPropagationModel.K5 * num6)) * num5)) + num11) + num8;
numArray3[i] = num13 + (num12 * okumuHataPropagationModel.KDiffraction);
string message = string.Concat(new object[] {
DateTime.Now.ToString("G"), ",", param.CellName, ",", param.X, ",", param.Y, ",", txEffHeight[0], ",", param.RxEffHeight[i], ",", okumuHataPropagationModel.PropModelName, ",", base.m_RayIndex, ",",
i, ",", calcResolution, ",,,", num12, ",", num13, ",", numArray3[i]
});
if (base.m_Log4net.IsDebugEnabled)
{
base.m_Log4net.Debug(message);
}
}
else
{
numArray3[i] = float.MinValue;
}
}
}
return numArray3;
}
/// <summary>
/// 计算射线上的点的路径损耗
/// </summary>
/// <param name="param"></param>
/// <param name="model"></param>
/// <param name="isStopCalculator"></param>
/// <returns></returns>
public override float[] CalculateRayPathLoss(RayMethodParam param, IPropagationModel model, ref bool isStopCalculator)
{
Dictionary<GeoXYPoint, float> results = new Dictionary<GeoXYPoint, float>();
ITUR230PropagationModel ITUR230PropModel = model as ITUR230PropagationModel;
float frequency = param.Frequency;//频率
float height = param.AntHeight;//基站高度
// float height = 0;
int startIndex = param.StartIndex;
param.PeakHeightMatrix = new short[(param.EndIndex - startIndex) + 1];
param.PeakDotMatrix = new int[(param.EndIndex - startIndex) + 1];
PeakTempValue peakTempValue = new PeakTempValue();
GeoXYPoint sitePoint = new GeoXYPoint(param.X, param.Y);
float[] pointsPathLossOnRay = new float[(param.EndIndex - startIndex) + 1];
if (ITUR230PropModel != null)
{
float calcResolution = param.CalcResolution;
for (int i = 0; i < pointsPathLossOnRay.Length; i++)
{
if (isStopCalculator) return pointsPathLossOnRay;
if ((param.TxEffHeight[i] != -32768f) && (param.RxEffHeight[i] != -32768f))
{
GeoXYPoint calPoint = new GeoXYPoint(param.X + (i + startIndex) * param.CalcResolution * Math.Sin(param.Angle),
param.Y + (i + startIndex) * param.CalcResolution * Math.Cos(param.Angle));
double distance = GetDistance(calPoint, sitePoint);//每个点到基站的距离
param.PeakHeightMatrix[i] = peakTempValue.PeakHeight;
param.PeakDotMatrix[i] = (int)peakTempValue.PeakDot;
//pointsPathLossOnRay[i] = CalculatePointPathLossOnRayByITUR230(height, frequency, distance, ref isStopCalculator);//每个点到基站的路损计算
pointsPathLossOnRay[i] = (float)getLoss(230, distance / 1000, height, 10, 10) - k1;//getLoss(Double frequence, Double distance, Double height, Double G, Double Heff)
//frequence:频率，distance:距离，height:天线高度，G:天线增益，单位dB ，Heff:附近环境的平均高度，通过Gis获得？（典型场景：中心城市30m，郊区20m，农村10m？)
results.Add(calPoint, pointsPathLossOnRay[i]);
}
}
}
return pointsPathLossOnRay;
}