Method for measuring parallel frequency and periodic signal parameters based on edge effect

• Main Authors: YU JIANGUO, LI ZHIQI, CHEN FAXI, SONG HUIMIN, WEI ZHONG, XUAN ZONGQIANG, ZHOU WEI, BAI LI'NA
• Format: Patent
• Language: Chinese; English
• Published: 22.01.2014
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a method for measuring parallel frequency and periodic signal parameters based on an edge effect. The method is applied to measurement of important parameters such as time frequency on the basis of the edge effect, is developed to determine whether a fuzzy area under measurement is serial or parallel and know the change of a monotonic measuring object parameter as far as possible, and is applied to control processing. When a frequency relationship among signals is simple, a detection fuzzy area is formed by monotonic phase change in a serial way; when the frequency relationship among signals is complicated, a plurality of detection fuzzy areas are formed by means of phase shift delaying and the like in a parallel way; after phase shift delaying, a phase difference relationship which is originally outside the edges of the fuzzy areas enters a phase coinciding detection area; or on the contrary, a phase difference relationship which is originally inside the edges of the fuzzy areas moves