src/ria_toolkit_oss/signal/block_generator/multirate/downsampling.py

@@ -58,3 +58,6 @@ class Downsampling(Block):
         :rtype: DataType
         """
         return DataType.BASEBAND_SIGNAL
+
+    def get_samples(self, num_samples):
+        raise NotImplementedError

src/ria_toolkit_oss/signal/block_generator/multirate/upsampling.py

@@ -51,6 +51,9 @@ class Upsampling(Block):
         """
         return DataType.UPSAMPLED_SYMBOLS
 
+    def get_samples(self, num_samples):
+        raise NotImplementedError
+
     def __call__(self, signal: np.ndarray) -> np.ndarray:
         """Upsample the input signal by inserting zeros between samples.
 

src/ria_toolkit_oss/signal/block_generator/pulse_shaping/raised_cosine_filter.py

@@ -85,6 +85,7 @@ class RaisedCosineFilter(PulseShapingFilter):
         """
         t_symbol = self.upsampling_factor
         beta = self.beta
+        with np.errstate(divide='ignore', invalid='ignore'):
             f_val = (
                 1
                 / t_symbol

src/ria_toolkit_oss/signal/block_generator/pulse_shaping/root_raised_cosine_filter.py

@@ -86,6 +86,7 @@ class RootRaisedCosineFilter(PulseShapingFilter):
         alpha = 4 * beta * t / t_symbol
 
         t[t == 0] = 1e9
+        with np.errstate(divide='ignore', invalid='ignore'):
             f_val = (np.sin(np.pi * t / t_symbol * (1 - beta)) + alpha * np.cos(np.pi * t / t_symbol * (1 + beta))) / (
                 np.pi * t * (1 - alpha**2)
             )