Matlab写一段EVM计算

以下是一段基于Matlab的EVM计算代码：

% 读取原始信号和接收信号
original_signal = load('original_signal.mat');
received_signal = load('received_signal.mat');

% 提取I/Q分量
original_I = real(original_signal);
original_Q = imag(original_signal);
received_I = real(received_signal);
received_Q = imag(received_signal);

% 计算EVM
error_vector = (original_I - received_I) + 1i*(original_Q - received_Q);
rms_error = rms(error_vector);
rms_original = rms(original_signal);
EVM = (rms_error / rms_original) * 100;

% 显示EVM结果
disp(['EVM = ' num2str(EVM) '%']);

其中，原始信号和接收信号需要以.mat格式保存，且需要分别存储实部和虚部。运行代码后，将输出EVM的值。