func (m *OFDM) Fft(inputPin1 gocomm.Complex128AChannel) {
/// Read your data from Input channel(s) [inputPin1]
/// And write it to OutputChannels [outputPin1]
outputPin1 := m.Pins["outputPin1"].Channel.(gocomm.Complex128AChannel)
iters := 1
for i := 0; i < iters; i++ {
chData := <-inputPin1
iters = chData.MaxExpected
tsamples := chData.Ch
/// Do process here with chData
var outData gocomm.SComplex128AObj
outData.Ch = dsp.ExtFFT_C(tsamples, m.NPoint)
/// copy meta
outData.MaxExpected = chData.MaxExpected
outData.Ts = chData.Ts
outData.TimeStamp = chData.TimeStamp
outData.Message = chData.Message
outputPin1 <- outData
iters = chData.MaxExpected
}
}
func (m *MPChannel) Channel(inputPin0 gocomm.Complex128Channel) {
/// Read your data from Input channel(s) [inputPin0]
/// And write it to OutputChannels [outputPin0]
outputPin0 := chipset.ToComplexCH(m.Pins["outputPin0"])
var IdealChObj gocomm.SComplex128AObj
iters := 1
for i := 0; i < iters; i++ {
chData := <-inputPin0
iters = chData.MaxExpected
/// Do process here with chData
outData := m.ChannelFn(chData)
/// coeff attempt to send
IdealChObj.Ch = m.Coeff
IdealChObj.Ts = chData.Ts
IdealChObj.TimeStamp = chData.TimeStamp
IdealChObj.Message = chData.Message
IdealChObj.MaxExpected = chData.MaxExpected
//fmt.Printf("\n Want to broadcast %#v to %#v", IdealChObj, coeffPin)
///
// select {
// case coeffPin <- IdealChObj:
// // fmt.Printf("\n%f : sent message %v", IdealChObj.TimeStamp, IdealChObj.Ch)
// default:
// // fmt.Printf("\n%f: no message sent", IdealChObj.TimeStamp)
// }
outputPin0 <- outData
}
}
func (m *MPChannel) ChannelFn(sample gocomm.SComplex128Obj) (result gocomm.SComplex128Obj) {
/// Read your data from Input channel(s) [inputPin0]
/// And write it to OutputChannels [outputPin0]
// fmt.Printf("\n Channel Param %#v \n input = %v", m.ChannelParam, sample)
if m.Ts == -1 {
m.Coeff.Resize(m.pdp.Size())
for i := 0; i < m.pdp.Size(); i++ {
m.Coeff[i] = sources.RandNC(m.pdp[i])
}
if m.FeedbackCH != nil {
var chdata gocomm.SComplex128AObj
chdata.Ch = m.Coeff
chdata.TimeStamp = m.TimeStamp
chdata.MaxExpected = sample.MaxExpected
chdata.Ts = m.Ts
fmt.Printf("\n FAST IID generated for sample@%v with %v@%v", sample.TimeStamp, m.TimeStamp, cmplx.Abs(m.Coeff[0])*cmplx.Abs(m.Coeff[0]))
m.FeedbackCH <- chdata
}
} else {
m.updateCoeff(sample.TimeStamp)
}
if m.FilterMemory.Size() != m.Coeff.Size() {
m.FilterMemory.Resize(m.Coeff.Size())
}
result = sample /// Carefull if not same ChType
// m.TimeStamp = sample.TimeStamp
m.FilterMemory = m.FilterMemory.ShiftLeft(sample.Ch)
//dummy := vlib.ElemMultC(m.Coeff, vlib.Conj(m.Coeff))
foutput := vlib.DotC(m.Coeff, m.FilterMemory)
// fmt.Printf("\n CHANNEL @%v: I/P %v - Gain : %v : O/p : %v", sample.TimeStamp, sample.Ch, cmplx.Abs(m.Coeff[0])*cmplx.Abs(m.Coeff[0]), foutput)
result.Ch = foutput
result.Message = sample.Message + " Filter"
result.Ts = sample.Ts
result.TimeStamp = sample.TimeStamp
result.MaxExpected = sample.MaxExpected
// fmt.Printf("\n I/O (hn =%v) : %#v --> %#v", m.Coeff, sample, result)
return result
}
func (m *MPChannel) updateCoeff(timestamp float64) {
/// first time
generated := false
if m.TimeStamp == -1 {
m.Coeff.Resize(m.pdp.Size())
for i := 0; i < m.pdp.Size(); i++ {
m.Coeff[i] = sources.RandNC(m.pdp[i])
}
generated = true
m.TimeStamp = 0 /// Unusuall if inbetween the MPchannel timestamp has got RESET !!
} else {
/// Existing channel-coeff is valid till m.Timestamp+m.TS,
valid := timestamp < (m.TimeStamp + m.Ts)
if !valid {
/// TRIGGER NEW COEFF
m.Coeff = vlib.NewVectorC(m.pdp.Size())
for i := 0; i < m.pdp.Size(); i++ {
m.Coeff[i] = sources.RandNC(m.pdp[i])
}
m.TimeStamp = timestamp
generated = true
}
}
/// Write new coeff to feedback channel if new was generated
if m.FeedbackCH != nil && generated {
var chdata gocomm.SComplex128AObj
chdata.Ch = m.Coeff
chdata.TimeStamp = m.TimeStamp
chdata.Ts = m.Ts
// fmt.Printf("\n CH:GENERATED @ %v with Coeff : %v, Gain : %v ", timestamp, m.Coeff[0], cmplx.Abs(m.Coeff[0])*cmplx.Abs(m.Coeff[0]))
m.FeedbackCH <- chdata
}
}