public int udpRecvInit(string LocalIP, string[] GroupIP, int GroupPort) //窄带宽带数据接收与处理
{
udpRecv = new udpRecv(LocalIP, GroupIP, GroupPort); //建立udp连接
udpRecv.passParameter += new udpRecv.PassInformationr(udpRecv_passParameter); //委托
udpRecv.Start(); //开始接收数据
return(0);
}
void udpRecv_passParameter(udpRecv sender, byte[] t) //委托事件，udpRecv类传递的数据LX
{
double StartFreq = 0d; //初始化起始频率LX
double StopFreq = 0d; //初始化终止频率LX
int Header_DataType = Convert.ToInt32(t[1]); //数据包帧头中的数据类型LX
switch (Header_DataType)
{
case 1:
m_DataPacket = 2048; //每路IQ数据长度LX
m_ChannelCount = 1; //每包中的通道数（路数）LX
byte[][] ChannelData = new byte[m_ChannelCount][]; //存放IQ数据的二维数组LX
byte[] Data = new byte[m_DataPacket];
m_PacketBandNum = t[2];
for (int i = 0; i < m_ChannelCount; i++)
{
ChannelData[i] = new byte[m_DataPacket];
Buffer.BlockCopy(t, 96 + m_DataPacket * i, ChannelData[i], 0, m_DataPacket); //接收到的数据分通道放入二维数组
}
if (m_PacketBandNum >= 0 && m_PacketBandNum <= 195)
{
Buffer.BlockCopy(ChannelData[m_ChannelCount - 1], 0, Data, 0, m_DataPacket); //从二位数组中取出选择的一路数据
}
StartFreq = nbddcfreq - nbddcbandwidth / 2000; //窄带起始频率
StopFreq = nbddcfreq + nbddcbandwidth / 2000; //窄带终止频率
DataFunction.PushChannelData_NB(Data, StartFreq, m_PacketBandNum, new TimeInfo(t)); //时标检测
break;
case 2:
m_DataPacket = 2048; //每路IQ数据长度LX
m_ChannelCount = 20; //每包中的通道数（路数）LX//20200224test
ChannelData = new byte[m_ChannelCount][]; //存放IQ数据的二维数组LX
m_PacketBandNum = t[2];
byte[] Data_temp = new byte[m_DataPacket];
TimeInfo time = new TimeInfo(t);
for (int i = 0; i < m_ChannelCount; i++)
{
ChannelData[i] = new byte[m_DataPacket];
Buffer.BlockCopy(t, 96 + m_DataPacket * i, ChannelData[i], 0, m_DataPacket); //接收到的数据分通道放入二维数组
DataFunction.PushChannelData_BB(ChannelData[i], StartFreq, i + m_PacketBandNum * 20, time); //时标检测
}
break;
default:
break;
}
}