【摘要】 给出了一个关于周期信号欠采样的定理,其具有概念明确、使用方便等优点.还就采样参数选择原则、定时误差的影响、采样信号的频谱等问题进行了讨论.更多还原

【Abstract】 A theorem to choose the sample frequency for undersampling a periodic signal is presented,which is distinct in conception and convenience in use.Some relative problems are discussed,such as the principle for choosing sampling parameters,the affect of the timing error,the frequency spectrum of sample signal.更多还原