Fix typo & types

src/backscattering_analyzer/utils.py

@@ -1,4 +1,4 @@
-from science_signal.signal import Signal
+from science_signal.signal import Signal # type: ignore[reportMissingTypeStubs]
 from backscattering_analyzer import logger
 
 from numpy.typing import NDArray
@@ -22,7 +22,7 @@ def process_movement(
             - mirror * calibrations["mirror"]
         )
         .detrend("constant")
-        .filter(end=5 * vibration_frequency)
+        .filter(end=1)
         .detrend("constant")
     )
 
@@ -46,4 +46,4 @@ def compute_light(
         sqrt(pre_scatter_factor)
         / phase
         * (coupling_n * factor_n + coupling_d * factor_d).y
-    )
+    ) # type: ignore[reportAny]