A sequence generation method and system

Abstract

The invention discloses a sequence generation method. The method comprises the following steps: when time information of a target sequence is received, determining the number of clock cycles, first delay series and second delay series according to the time information; configuring the number of time units in a first time interpolation module and a second time interpolation module according to thefirst delay series and the second delay series respectively; and determining an original waveform according to the number of clock cycles, and transmitting the original waveform to the configured first time interpolation module and second time interpolation module to obtain a target sequence. In the method, two-stage time interpolation is adopted, and the non-linearity and temperature drift are generated mainly from smaller time units in the interpolation modules. The number of smaller time units is reduced, and the problem of large deviation between an output sequence and an ideal value underthe influences of the non-linearity and temperature drift of a delay chain composed of the time units in the case of generation of a higher time precision sequence is solved.

Description

Technical field [0001] The invention relates to the technical field of digital signal communication, in particular to a sequence generation method and system. Background technique [0002] A sequence is a set of serial signals formed by a specific arrangement of 0 / 1 digital codes. Sequences can be seen everywhere in electronics, not only can transmit information, but also can be used as control signals. In the prior art, the sequence is generated by the time interpolation method. The time interpolation method is based on the high-speed clock method, introducing a smaller time unit and inserting it into the clock cycle to obtain a sequence signal with the same time accuracy as the time unit. [0003] The inventor conducted research on the existing process of generating sequences based on time interpolation and found that since only one time unit interpolation is performed, the accuracy of the generated sequence depends on the size of the interpolation time unit. The more time units...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a sequence generation method and system to solve the problem in the prior art that the accuracy of the generated sequence depends on the size of the interpolated time unit because only one time unit is interpolated. more, the more serious the non-linearity and temperature drift

Images