Quadratic power frequency doubling method based on GPS second pulses

• Main Authors: CAO JULIANG, TIE JUNBO, CAI SHAOKUN, WU MEIPING, YU RUIHANG
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2017
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; GENERATION OF NOISE BY SUCH CIRCUITS; GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER

The invention discloses a quadratic power frequency doubling method based on GPS second pulses for solving the problems of complex design, multi-resource occupation, clock drift and time delay error of the existing clock generation method, and belongs to the field of digital signal processing. The quadratic power frequency doubling of the GPS second pulses is realized by designing a binary division rule, measuring a local crystal oscillator clock drift by using the GPS second pulses and using the overflow bit of a frequency doubling accumulator register as an output clock. The quadratic power frequency doubling method has the advantages of simple design, easy implementation and less resource occupation, being able to eliminate the local oscillator clock drift and a divider delay error, more than one second of long-term precision of clock signal generation is consistent with the precision of the GPS second pulses, the short term precision within one second of the clock signal generation is consistent with the