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fix constant spectrum for all tof

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Christos Falas 2024-12-29 12:22:47 +00:00
parent 3199103caa
commit 25e259f038
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1 changed files with 10 additions and 5 deletions
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15
src/aoa.py
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@ -79,16 +79,21 @@ class AoA:
) )
def steering_vector(self, theta: float, tof: float): def steering_vector(self, theta: float, tof: float):
omega_t = self.omega_base**tof omega_t = np.exp(-2j * np.pi * config.DELTA_F * tof)
phi_theta = self.phi_base ** (1 - np.cos(theta)) phi_theta = np.exp(
2j
assert phi_theta.shape == omega_t.shape * np.pi
* config.CENTRAL_FREQUENCY_HZ
* config.ANTENNA_SPACING
* (1 - np.cos(theta))
/ config.C
)
omega_t = np.expand_dims(omega_t, axis=-1) omega_t = np.expand_dims(omega_t, axis=-1)
phi_theta = np.expand_dims(phi_theta, axis=-1) phi_theta = np.expand_dims(phi_theta, axis=-1)
antenna_v = omega_t ** np.arange(self.N_subcarriers // 2) antenna_v = omega_t ** np.arange(self.N_subcarriers // 2)
phis = phi_theta ** np.arange(self.N_rx) phis = phi_theta ** np.arange(self.N_rx // 2)
antenna_v = np.expand_dims(antenna_v, axis=-1) antenna_v = np.expand_dims(antenna_v, axis=-1)
steering = antenna_v * phis steering = antenna_v * phis
return steering.T.reshape(-1) return steering.T.reshape(-1)