信号处理中提高检测精度的一种算法

An arithmetic Improving Test Precision During Signal Processing

本文提出了一种既能提高周期信号的测试精度，又不增加计算量的自适应算法，其核心是当周期信号的周期的整数倍等于采样周期与采样点数的乘积时，运用该算法得出的离散序列就是直接对信号采样后得到的离散序列；不等于时，自适应算法将自动调整采样得到的离散序列，使其最大限度地逼近理想离散序列，从而减少频谱泄漏．

The paper gives a kind of arithmetic that improves test-precision of periodic signal as well as reduces calculational times. The summarization is that when win the multiples of the period of periodic signal is equal to the product of period and number of sampling the discrete series that be caculated by the arithmetic is equal to the discrete series that be gained by sampling directly. When the multiple of the period of periodic signal is not equal to the product of period and number of sampling the arithmetic will adjust the discrete series that be gained by sampling, and makes it approach the ideal discrete series. The result of arithmetic processing shows that spectrum leakage is reduced.