在本仿真中,我们探讨了BPSK(二进制相位键控)的仿真结果及其相关代码。通过实验,我们可以观察到BPSK在不同信噪比下的性能表现。以下是仿真的核心代码示例:
# BPSK Simulation Code
import numpy as np
import matplotlib.pyplot as plt
# Parameters
N = 1000 # Number of symbols
SNR_dB = 10 # Signal to Noise Ratio in dB
# Generate random binary data
data = np.random.randint(0, 2, N)
# BPSK Modulation
bpsk_signal = 2*data - 1
# Add noise
noise = np.random.normal(0, np.sqrt(1/(2*(10**(SNR_dB/10)))), N)
received_signal = bpsk_signal + noise
# Plot
plt.plot(received_signal)
plt.title('Received BPSK Signal')
plt.xlabel('Sample Index')
plt.ylabel('Amplitude')
plt.grid()
plt.show()
这个示例展示了BPSK调制及其在噪声环境下的表现。