/// <summary>
/// Обработчик нажатия кнопки "Амплитудный спектр (БПФ)"
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void showAmplitudeSpectrumButton_Click(object sender, EventArgs e)
{
Stopwatch watch = new Stopwatch();
try
{
FilterType type;
double[] preparedData;
string label;
var button = (Button)sender;
switch (button.Name)
{
case "showAmplitudeSpectrumBFTButton":
type = FilterType.FourierBase;
label = "Амплитудный спектр ПФ";
break;
case "showAmplitudeSpectrumFFTButton":
type = FilterType.FourierFast;
label = "Амплитудный спектр БПФ";
break;
case "showAmplitudeSpectrumFTSButton":
type = FilterType.FourierSpeed;
label = "Амплитудный спектр ПФУ";
break;
default:
throw new ArgumentException();
}
preparedData = FiltersUtils.PrepareDataToFilter(signal.Data, type);
watch.Start();
double[] amplSpec = FourierTransform.AmplitudeSpectrum(preparedData, type);
watch.Stop();
var form0 = new ShowSpectrumForm(amplSpec, label, SpectrumType.Amplitude, signal.Hz, watch.ElapsedMilliseconds);
form0.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void showImpulceCharacteristicButton_Click(object sender, EventArgs e)
{
try
{
int n = (int)impulceCharacteristicNNumericUpDown.Value;
double threshold = (double)impulceCharacteristicThresholdNumericUpDown.Value;
var windowType = GetFourierTransformType();
var impCharType = (FirFilterType)Enum.Parse(typeof(FirFilterType), (string)impulseCharacteristicTypeComboBox.SelectedItem);
double[] h = FiniteImpulseResponse.ImpulseCharacteristic(signal.Hz, n, threshold, impCharType, windowType);
var form = new ShowSpectrumForm(h, " Импульсная характеристика", SpectrumType.NotSet, n);
form.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void showPhaseResponseButton_Click(object sender, EventArgs e)
{
Stopwatch watch = new Stopwatch();
try
{
var impCharType = (FirFilterType)Enum.Parse(typeof(FirFilterType), (string)impulseCharacteristicTypeComboBox.SelectedItem);
int n = (int)impulceCharacteristicNNumericUpDown.Value;
double threshold = (double)impulceCharacteristicThresholdNumericUpDown.Value;
watch.Start();
double[] h = FiniteImpulseResponse.ImpulseCharacteristic(signal.Hz, n, threshold, impCharType);
double[] phaseSpec = FiniteImpulseResponse.PhaseResponse(h, signal.Hz);
watch.Stop();
var form = new ShowSpectrumForm(phaseSpec, "ФЧX", SpectrumType.Phase, signal.Hz, watch.ElapsedMilliseconds);
form.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void showFrequencyResponseDButton_Click(object sender, EventArgs e)
{
Stopwatch watch = new Stopwatch();
try
{
int n = (int)impulceCharacteristicNNumericUpDown.Value;
double threshold = (double)impulceCharacteristicThresholdNumericUpDown.Value;
var windowType = GetFourierTransformType();
var impCharType = (FirFilterType)Enum.Parse(typeof(FirFilterType), (string)impulseCharacteristicTypeComboBox.SelectedItem);
watch.Start();
double[] h = FiniteImpulseResponse.ImpulseCharacteristic(signal.Hz, n, threshold, impCharType, windowType);
double[] amplSpec = FiniteImpulseResponse.FrequencyResponse(h, signal.Hz);
watch.Stop();
var form = new ShowSpectrumForm(amplSpec, "АЧX", SpectrumType.AmplitudeDecibels, signal.Hz, watch.ElapsedMilliseconds);
form.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}