如何在python或MATLAB中实现心电信号的上采样和下采样？

import numpy as np
from scipy.interpolate import interp1d

# 原始心电信号的时间序列
time = np.array([0, 1, 2, 3, 4, 5])
# 原始心电信号的采样值
signal = np.array([1, 2, 3, 4, 5, 6])

# 上采样后的时间序列
upsampled_time = np.linspace(0, 5, 10)
# 创建线性插值函数
interp_func = interp1d(time, signal, kind='linear')

# 上采样后的心电信号采样值
upsampled_signal = interp_func(upsampled_time)

import numpy as np
from scipy.signal import decimate

# 原始心电信号的时间序列
time = np.array([0, 1, 2, 3, 4, 5])
# 原始心电信号的采样值
signal = np.array([1, 2, 3, 4, 5, 6])

# 降采样因子
downsample_factor = 2

# 下采样后的心电信号采样值
downsampled_signal = decimate(signal, downsample_factor)