宽带信号延迟采样方法误差分析仿真研究

该文提出了一种宽带信号采样的新方法,将延迟采样方法应用于宽带信号采样,分析了宽带信号延迟采样的幅度和相位不平衡误差,并进行了仿真实验。理论分析和仿真结果表明,信号带宽和采样频率对采样误差都有一定影响。带宽越大,采样误差越大;对某一带宽的宽带信号,在保证不发生频谱混叠的情况下,采样频率越大,采样误差越小,但同时数据量就会增大,因此在工程中应根据实际情况对采样误差和数据量进行折中考虑。

Simulation of Error Analysis of Wideband Signal Delay Sampling Method

A novel sampling method of wideband signal is presented in this paper. Wideband delay sampling method is discussed.The error analysis of magnitude and phase and simulating experiment are provided.The simulation results indicate that both the bandwidth and the sampling frequency of signal have some influence on the sampling error.The sampling error increases with the increase of the bandwidth and reduces with the increase of sampling frequency,but if the sampling frequency increased,the amount of data will increase too.Consequently,there must be a compromise consideration between the sampling error and the amount of data.