数据通信实验 信号及带宽 验证包括数字信号在内的任意信号可由若干正弦波叠加而成 通过实验证明，模拟信号的带宽对的数字化数据抽样频率有着重要影响-Any signal bandwidth of data communication test signals and digital signals, including verification by including a number of sine wave superposition proved by experiments, th