MATLAB实现连续信号采样、频谱分析和采样信号恢复的方法。计算在临界采样、过采样、欠采样三种不同条件下恢复信号的误差，并由此总结采样频率对信号恢复产生误差的影响，从而验证时域采样定理。-MATLAB continuous signal sampling, spectral analysis and sampling signal recovery method. Calculated in a critical sampling, the oversampling signal error r

this program implements band pass and band stop fir filter and its output is plotted using matlab. three sampling cases are explained here viz dowmsampling, critical sampling and overvsampling. A signal is given as its input and its output is plott