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PLFM_RADAR/8_Utils/Python/LUT.py
T
2026-03-09 00:11:57 +00:00

25 lines
771 B
Python

import numpy as np
# Define parameters
fs = 120e6 # Sampling frequency
Ts = 1 / fs # Sampling time
Tb = 1e-6 # Burst time
Tau = 30e-6 # Pulse repetition time
fmax = 15e6 # Maximum frequency on ramp
fmin = 1e6 # Minimum frequency on ramp
# Compute number of samples per ramp
n = int(Tb / Ts)
N = np.arange(0, n, 1)
# Compute instantaneous phase
theta_n = 2 * np.pi * ((N**2 * Ts**2 * (fmax - fmin) / (2 * Tb)) + fmin * N * Ts)
# Generate waveform and scale it to 8-bit unsigned values (0 to 255)
y = 1 + np.sin(theta_n) # Normalize from 0 to 2
y_scaled = np.round(y * 127.5).astype(int) # Scale to 8-bit range (0-255)
# Print values in Verilog-friendly format
for i in range(n):
print(f"waveform_LUT[{i}] = 8'h{y_scaled[i]:02X};")