卷积函数的自相关python代码

以下是卷积函数的自相关 Python 代码：

import numpy as np

def convolve(signal, kernel):
    kernel_size = len(kernel)
    signal_size = len(signal)
    output_size = signal_size - kernel_size + 1
    output = np.zeros(output_size)
    for i in range(output_size):
        output[i] = np.sum(signal[i:i+kernel_size] * kernel)
    return output

def autocorrelation(signal):
    kernel = signal[::-1]
    return convolve(signal, kernel)

# 示例
signal = np.array([1, 2, 3, 4, 5])
autocorr = autocorrelation(signal)
print(autocorr)

以上是卷积函数的自相关 Python 代码，希望能对您有所帮助。