Пример #1
0
        private void CalculateSpec()
        {
            answer = new MySeries[sample.end * 2 / Setting.FrameLength - 1];
            Complex[] buff = new Complex[Setting.FrameLength];

            for (int frame = 0; frame < answer.Length; frame++)
            {
                SetLabelValue(frame * 100 / answer.Length);
                SetBarValue(frame * 100 / answer.Length);
                for (int i = 0; i < Setting.FrameLength; i++)
                {
                    buff[i] = sample.data[frame * Setting.FrameLength / 2 + i];
                }
                HammingWindow.Use(buff);
                FFT.Forward(buff, FourierTransformScaling.ForwardScaling);
                answer[frame]       = new MySeries();
                answer[frame].begin = (frame + 1) * Setting.FrameLength / 2;
                answer[frame].end   = answer[frame].begin + Setting.FrameLength - 1;
                answer[frame].data  = new float[Setting.FrameLength];
                for (int i = 0; i < Setting.FrameLength; i++)
                {
                    answer[frame].data[i] = (float)Complex.Abs(buff[i]);
                }
            }
            SetLabelValue(100);
            SetBarValue(100);
            this.Invoke(new Action(this.Close));
        }
        public static double[] ApplyHammingWindow(float[] signal, HammingWindowDef hammingWindowDef = null)
        {
            if (hammingWindowDef == null)
            {
                hammingWindowDef = new HammingWindowDef();
            }
            var hammingWindow = new HammingWindow(hammingWindowDef, signal.Length);

            return hammingWindow.Apply(signal);
        }
Пример #3
0
 private void ComputeHammingWindow(object sender, RoutedEventArgs e)
 {
     Signal = new  HammingWindow(Signal, M);
     ChartWrapper.SetSignal(SignalSlot, Signal);
     ReplotChartAndHistogram();
 }