The autocorrelation function is an even function. 自相關(guān)函數是一個(gè)偶函數。
With this observation, the AAF can be calculated by following the conventional correlation method. 該方法首先通過(guò)動(dòng)力學(xué)系統產(chǎn)生時(shí)延和時(shí)間尺度變化的信號,然后由數字方式計算相關(guān)函數,從而獲得寬帶信號的模糊函數。