Exemple #1
0
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
bool AmplitudeProcessor_Mjma::deconvolveData(Response *resp,
                                             DoubleArray &data,
                                             int numberOfIntegrations) {
	Math::Restitution::FFT::TransferFunctionPtr tf =
		resp->getTransferFunction(numberOfIntegrations);

	if ( tf == NULL ) {
		setStatus(DeconvolutionFailed, 0);
		return false;
	}

	
	Math::SeismometerResponse::Seismometer5sec paz(Math::Velocity);
	Math::Restitution::FFT::PolesAndZeros seis5sec(paz);

	Math::Restitution::FFT::TransferFunctionPtr cascade =
		*tf / seis5sec;

	// Remove linear trend
	double m,n;
	Math::Statistics::computeLinearTrend(data.size(), data.typedData(), m, n);
	Math::Statistics::detrend(data.size(), data.typedData(), m, n);

	return Math::Restitution::transformFFT(data.size(), data.typedData(),
	                                         _stream.fsamp, cascade.get(),
	                                         _config.respTaper, _config.respMinFreq, _config.respMaxFreq);
}
Exemple #2
0
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
bool AmplitudeProcessor_Md::deconvolveData(Response* resp,
                                           DoubleArray& data,
                                           int numberOfIntegrations) {
	if ( numberOfIntegrations < -1 )
		return false;

	SEISCOMP_DEBUG("Inside deconvolve function");

	double m, n;
	Math::Restitution::FFT::TransferFunctionPtr tf =
		resp->getTransferFunction(numberOfIntegrations < 0 ? 0 : numberOfIntegrations);

	if ( !tf )
		return false;

	Math::GroundMotion gm;

	if ( numberOfIntegrations < 0 )
		gm = Math::Displacement;
	else
		gm = Math::Velocity;

	Math::Restitution::FFT::TransferFunctionPtr cascade;
	Math::SeismometerResponse::WoodAnderson woodAndersonResp(gm, _config.woodAndersonResponse);
	Math::SeismometerResponse::Seismometer5sec seis5sResp(gm);
	Math::SeismometerResponse::L4C_1Hz l4c1hzResp(gm);

	Math::Restitution::FFT::PolesAndZeros woodAnderson(woodAndersonResp);
	Math::Restitution::FFT::PolesAndZeros seis5sec(seis5sResp);
	Math::Restitution::FFT::PolesAndZeros l4c1hz(l4c1hzResp);

	SEISCOMP_DEBUG("SEISMO = %d", aFile.SEISMO);

	switch ( aFile.SEISMO ) {
		case 1:
			cascade = *tf / woodAnderson;
		break;
		case 2:
			cascade = *tf / seis5sec;
		break;
		case 9:
			SEISCOMP_INFO("%s Applying filter L4C 1Hz to data", AMPTAG);
			cascade = *tf / l4c1hz;
		break;
		default:
			cascade = tf;
			SEISCOMP_INFO("%s No seismometer specified, no signal reconvolution performed", AMPTAG);
			return false;
		break;
	}

	// Remove linear trend
	Math::Statistics::computeLinearTrend(data.size(), data.typedData(), m, n);
	Math::Statistics::detrend(data.size(), data.typedData(), m, n);

	return Math::Restitution::transformFFT(data.size(), data.typedData(),
	    _stream.fsamp, cascade.get(), _config.respTaper, _config.respMinFreq,
	    _config.respMaxFreq);
}