Method for measuring short-term frequency stability of unconventional sampling time

A technology of frequency stability and sampling time, applied in the field of short-term frequency stability measurement, can solve the problems such as the short-term frequency stability of unconventional sampling time that cannot accurately measure the verification device of radar speedometer, and achieve the effect of ensuring normal work.

Active Publication Date: 2011-09-21
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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Problems solved by technology

[0004] The invention provides a short-term frequency stability measurement method with unconventional sampling time to solve the problem that the prior art cannot accurately measure the short-term frequency stability of the unconventional sampling time of the radar speedometer verification device

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  • Method for measuring short-term frequency stability of unconventional sampling time
  • Method for measuring short-term frequency stability of unconventional sampling time

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Embodiment Construction

[0012] The present invention will be described in more detail below in conjunction with cross-sectional schematic diagrams, wherein preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as the broad knowledge of those skilled in the art, but not as a limitation of the present invention.

[0013] In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention with unnecessary detail. It should be appreciated that in the development of any actual embodiment, numerous implementation details must be worked out to achieve the developer's specific goals, such as changing from one embodim...

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Abstract

The invention discloses a method for measuring short-term frequency stability of unconventional sampling time, which comprises the following steps of: measuring the frequency stability of a measured component by using a phase noise testing system; after ending the measurement by using the phase noise testing system, utilizing a frequency stability processing module to extract the frequency stability measured values of a plurality of sampling points of the measured component; and utilizing the frequency stability processing module to select an interpolation algorithm according to a frequency stability curve, and set an interpolation point of the unconventional sampling time, thereby acquiring the short-term frequency stability of the unconventional sampling time of the measured component. The method can be used for accurately measuring the short-term frequency stability of the unconventional sampling time of a radar tachymeter calibrating device and efficiently monitoring the quantity transmission of the radar tachymeter calibrating device.

Description

technical field [0001] The invention relates to the technical field of measurement and test standard value transfer, in particular to a short-term frequency stability measurement method with an unconventional sampling time. Background technique [0002] Frequency stability is an important index to measure the stability of a clock signal source output frequency signal. Frequency stability is divided into frequency domain stability and time domain stability according to different observation domains. In the time domain, it is divided into frequency domain stability and time domain stability. , divided into long-term frequency stability and short-term frequency stability. There are many methods for measuring frequency stability, such as direct frequency measurement method, frequency error multiplication frequency measurement method, beat method, time difference method, etc. For the measurement of short-term frequency stability, high resolution and short sampling time are requi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/02G01S7/02
Inventor 胡立志董莲刘其华苑佳左建生
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
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