Changes between Version 15 and Version 16 of Tutorials/Digital Twins/Geo2Sig Map Getting Started

Timestamp:

Jan 26, 2026, 7:24:03 AM (2 weeks ago)

Author:

srivera2

Comment:

—

Tutorials/Digital Twins/Geo2Sig Map Getting Started

@@ -111 +111 @@
    }}}
 
+4. Configure Tx/Rx. This example uses the built-in TR 38.901 Antenna Pattern operating at 3.7 GHz:
+
+   {{{
+   #!python
+   # Set the operating frequency (n48 band for 5G)
+   scene.frequency = 3.7e9  # 3.7 GHz
+
+   # Define Rx position
+   ue_position = [10.0, 0.0, 0.0]   # Rx position (x, y, z in meters)
+
+   # Define Tx position
+   gnb_position = [0.0, 0.0, 20.0]
+
+   # gNB antenna: 3GPP TR 38.901 pattern (AIRSTRAN D 2200)
+   gnb_pattern_factory = antenna_pattern_registry.get("tr38901")
+   gnb_pattern = gnb_pattern_factory(polarization="V")
+
+   # UE antenna: Isotropic pattern (typical for mobile devices)
+   # This will be required for matching the calculations of the RadioMapSolver()
+   ue_pattern_factory = antenna_pattern_registry.get("iso")
+   # Polarization should also match the transmitter
+   ue_pattern = ue_pattern_factory(polarization="V")
+
+   # SISO: Single antenna element at origin [0, 0, 0] for both TX and RX
+   single_element = np.array([[0.0, 0.0, 0.0]])  # Shape: (1, 3)
+
+   # Configure antenna arrays
+   scene.tx_array = AntennaArray(
+       antenna_pattern=gnb_pattern,
+       normalized_positions=single_element.T  # Shape: (3, 1)
+   )
+
+   scene.rx_array = AntennaArray(
+       antenna_pattern=ue_pattern,
+       normalized_positions=single_element.T  # Shape: (3, 1)
+   )  
+
+   # Create Rx
+   rx = Receiver(name="ue", position=ue_position, display_radius=0.03)
+   scene.add(rx)
+
+   # Create Tx
+   tx = Receiver(name="gnb", position=gnb_position, display_radius=0.03)
+   scene.add(tx)
+
+   }}}
+
 ==== Cite ====