func ExtIFFT_C(samples vlib.VectorC, N int) vlib.VectorC {
y := vlib.VectorC(fft.IFFT(samples))
y = y.Scale(math.Sqrt(1.0 / float64(N)))
return y
}
func main() {
N := 20 /// 20 samples
L := 4 /// 5tap channel
begin := time.Now()
var cdma core.CDMA
cdma.InitializeChip()
cdma.SetSpreadCode(vlib.NewOnesC(L), true)
samples := vlib.VectorC(sources.RandNCVec(N, 1))
var data gocomm.SComplex128Obj
/// METHOD A
data.Ts = 1
data.TimeStamp = 0
data.MaxExpected = N
data.Message = ""
for i := 0; i < N; i++ {
data.Next(samples[i])
chips := cdma.SpreadFn(data)
output := cdma.DeSpreadFn(chips)
fmt.Printf("\nTxSymbol %v ", data)
// fmt.Printf("\nTx %v ", chips)
fmt.Printf("\nRxSymbol %v ", output)
}
/// METHOD B
// dataArray.MaxExpected = samples.Size()
// inCHA := gocomm.NewComplex128Channel()
// outputPin := filter.PinByID(1)
// go filter.Filter(inCHA)
// go chipset.Sink(outputPin)
// /// Actual data pushing
// for i := 0; i < N; i++ {
// dataArray.MaxExpected = N
// dataArray.Ch = samples[i]
// inCHA <- dataArray
// }
//fmt.Printf("\nFilter Residues %v", filter.FilterMemory)
// Of code
fmt.Printf("\nTime Elapsed : %v\n", time.Since(begin))
}
func CROcomplexAScatter(InCH gocomm.Complex128AChannel, labels ...string) {
var metric VCMetric
// metric.Name = fmt.Sprintf("EEEBCCCEEN")
if len(labels) == 0 {
// metric.Name = fmt.Sprintf("ZZZZZXXXXX")
metric.Name = fmt.Sprintf("%s", vlib.RandString(10))
// metric.Name = fmt.Sprintf("AAAAABBBBB")
} else {
metric.Name = labels[0]
if labels[0] == "" {
metric.Name = "PlotCurve1"
}
if len(metric.Name) > 10 {
metric.Name = metric.Name[0:10]
} else {
metric.Name = metric.Name + strings.Repeat("*", 10-len(metric.Name))
}
}
conn, cerr := net.Dial("udp", GLOBALADDRESS)
log.Println(cerr)
if cerr != nil {
log.Println("CRO:Unable to Dial localhost:8080 ", cerr)
}
var Ts float64 = 0.252
NextSize := 1
// packetbuf := new(bytes.Buffer)
buf := new(bytes.Buffer)
totalbytes := 0
for cnt := 0; ; cnt++ {
data := <-InCH
NextSize = data.MaxExpected
// data = temp.Ch
metric.Time = float64(cnt) * Ts
metric.Val = vlib.VectorC(data.Ch)
metric.Ts = Ts
// str := strconv.FormatFloat(real(data), 'f', 2, 64)
// databyte := make([]byte, 1024)
// fmt.Printf("Buffer is :%v ", buf)
// binary.Write(buf, binary.BigEndian, real(data))
binary.Write(buf, binary.BigEndian, []byte(metric.Name)) //10bytes
binary.Write(buf, binary.LittleEndian, metric.Time) /// 8byte float64
binary.Write(buf, binary.LittleEndian, metric.Ts) /// 8byte float64
binary.Write(buf, binary.LittleEndian, int64(len(metric.Val))) /// x= 8byte LEN Of the following float64 vector
binary.Write(buf, binary.LittleEndian, metric.Val) // x*8*2bytes
// fmt.Printf("\n AFTER Buffer is :%0 x ", buf.Bytes())
// fmt.Printf("\n METRIC is :%v ", metric)
// fmt.Fprintf(conn, "%c", str)
// fmt.Printf("\n%f %v", real(data), buf.Bytes())
// if 2 == 3 {
// packetbuf.ReadFrom(buf)
// if math.Mod(float64(cnt), 20.0) == 0 {
// if buf.Len() >= 2040 {
if conn != nil {
conn.Write(buf.Bytes())
// conn.Write(packetbuf.Bytes())
totalbytes += buf.Len()
fmt.Printf("\r %s : %d Sent %f %v bytes", metric.Name, cnt, metric.Time, buf.Len())
}
buf.Reset()
// }
if cnt == (NextSize - 1) {
break
}
// packetbuf.Reset()
// The sleep is only to allow the slow replot in Qt applicaiton
// time.Sleep(2 * time.Millisecond)
}
fmt.Printf("\n Last TimeStamp : %f, TotalBytes = %v bytes", metric.Time, totalbytes)
// }
}