Microphone receiving signals under different signal-to-noise ratios based on MATLAB
In this article, we will explore how to use MATLAB to simulate and analyze signals received by a microphone under different signal-to-noise ratio conditions. We will simulate signal transmission by writing corresponding MATLAB code and use different signal-to-noise ratio values to evaluate the quality of the received signal.
First, let's define a simple signal model. We assume that the signal sent is a sine wave with frequency f and amplitude A. We can use MATLAB's sin function to generate this signal. The code is as follows:
% 定义信号参数
f = 1000; % 频率为1000Hz
A = 1; % 幅度为1
% 生成信号
t = 0:1/44100: