Method and device for measuring time intervals of repeated synchronous interpolation simulation

A time interval measurement and time interval technology, which is applied in the direction of electrical unknown time interval measurement, devices and instruments for measuring time interval, etc. It can solve the problems of unreflected periodic changes and inappropriate signal phases, and achieve the effect of improving performance.

Inactive Publication Date: 2011-02-16
北京一朴时频科技有限公司
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Problems solved by technology

[0015] 1) It does not reflect changes in the entire cycle; it i...

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  • Method and device for measuring time intervals of repeated synchronous interpolation simulation
  • Method and device for measuring time intervals of repeated synchronous interpolation simulation
  • Method and device for measuring time intervals of repeated synchronous interpolation simulation

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Embodiment Construction

[0038]Introduce the time interval measurement method and device of multiple synchronous analog interpolation of the present invention below in conjunction with accompanying drawing:

[0039] figure 1 Shown is the time interval measurement method of multiple synchronous analog interpolation of the present invention, and this method comprises the following steps: S1, uses 32-bit cycle counters to measure the time scale moment, forms local time scale, and the timing resolution of this cycle counter is 10ns; S2, input the signal under test, and use the cycle counter to count the signal under test; S3, use a time stretcher to synchronize the remaining time interval of the signal under test not counted by the cycle counter for n times Time stretching, and then using a gate counter to measure the residual time interval after time stretching, wherein n is a positive integer greater than or equal to 3; S4, calculate the counting result of the cycle counter and the measurement result of...

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Abstract

The invention provides a method and a device for measuring time intervals of repeated synchronous interpolation simulation, and the method comprises the following steps: measuring time mark moments by a 32-bit cycle counter to generate a local time mark, wherein the timing resolution of the cycle counter is 10ns; inputting a measured signal, and counting the measured signal by adopting the cycle counter; performing n numbered synchronous time spreading on residual time internals of the measured signal which is not counted by the cycle counter through a time stretcher, and adopting a gate counter to measure the residual time intervals after time spreading; and calculating the counting result of the cycle counter and the measurement result of the gate counter, and outputting the measurement data of the measured signal. The method and the device in the invention can realize the measurement accuracy within 100ps and the sampling rate of 1M/s.

Description

technical field [0001] The present invention relates to time interval measurement technology, more specifically to a time interval measurement method and device for multiple synchronous analog interpolation. Background technique [0002] Time interval measurement is a scientific measurement technology that measures the phase and frequency of electrical signals over time, and is an important part of the complete scientific measurement of electrical signals. As more and more new electronic and communication technologies adopt frequency modulation and phase modulation technology, the detection of the relationship between signal frequency, phase or time interval and time change has become increasingly important and urgent, and it has an extremely wide range of applications in all aspects of national economy and national defense. Applications such as clock sources, phase-locked loops, digital communications, integrated circuits, digital storage devices, electromechanical systems,...

Claims

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Application Information

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IPC IPC(8): G04F10/04G04F10/00
Inventor 张军徐勇陈明
Owner 北京一朴时频科技有限公司
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