change: misc

src/scgenerator/math.py

@@ -167,13 +167,13 @@ def all_zeros(x: np.ndarray, y: np.ndarray) -> np.ndarray:
     return -y[pos] / m + x[pos]
 
 
-def wspace(t, t_num=0):
+def wspace(t: float | np.ndarray, t_num=0):
     """
     frequency array such that x(t) <-> np.fft(x)(w)
 
     Parameters
     ----------
-    t : float or array
+    t : float | np.ndarray
         float : total width of the time window
         array : time array
     t_num : int-

src/scgenerator/noise.py

@@ -83,7 +83,7 @@ class NoiseMeasurement:
 
     @property
     def psd_dBc(self) -> np.ndarray:
-        return math.to_dB(self.psd)
+        return math.to_dB(self.psd, ref=1.0)
 
     @property
     def plottable_linear(self) -> tuple[np.ndarray, np.ndarray]: