Merge pull request #391 from jhillairet/time_gate

change ifft to fft in gate frequency domain calculation
scikit-rf · Sep 25, 2020 · a4bba28 · a4bba28
2 parents 20b36cc + 60a3794
commit a4bba28
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/skrf/time.py b/skrf/time.py
@@ -262,8 +262,8 @@ def time_gate(ntwk, start=None, stop=None, center=None, span=None,
                            window,
                            npy.zeros(len(t) - stop_idx)]
 
-    #IFFT the gate, so we have it's frequency response, aka kernel
-    kernel=fft.fftshift(fft.ifft(fft.ifftshift(gate, axes=0), axis=0))
+    #FFT the gate, so we have it's frequency response, aka kernel
+    kernel=fft.ifftshift(fft.fft(fft.fftshift(gate, axes=0), axis=0))
     kernel =abs(kernel).flatten() # take mag and flatten
     kernel=kernel/sum(kernel) # normalize kernel