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Frequency marker calibrating system based on GPS frequency standard source

A frequency standard and calibration system technology, applied in the field of frequency standard calibration system based on GPS frequency standard source, can solve the problems of expensive equipment and large investment

Inactive Publication Date: 2007-08-22
南京电子计量有限公司 +2
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to invent a frequency standard calibration system based on the GPS frequency standard source for the problems of expensive equipment and large investment in the existing standard frequency source

Method used

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  • Frequency marker calibrating system based on GPS frequency standard source
  • Frequency marker calibrating system based on GPS frequency standard source
  • Frequency marker calibrating system based on GPS frequency standard source

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Embodiment Construction

[0026] The following structural drawings and embodiments further illustrate the present invention.

[0027] As shown in Figure 1-6.

[0028] A frequency standard calibration system based on GPS frequency standard source, which is composed of GPS frequency standard source receiving system 1, frequency standard comparison system 2, frequency standard measurement system 3 and computer system 4, as shown in Figure 1, GPS frequency standard The input signal of the source receiving system 1 receives the GPS frequency through the GPS antenna, and its output is sent to the frequency standard comparison system 2, and the frequency standard comparison system 2 uses the standard frequency sent by the GPS frequency standard source receiving system 1 and the frequency standard measurement system 3 The measured frequency is processed and sent to the computer system 4 for calculation, and then the result is displayed on the display screen and / or printed out by a printer.

[0029]The GPS fre...

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Abstract

This invention discloses a frequency scale adjusting system based on the GPS frequency standard aiming at the current expensive standard frequency device. Its characters lie in that it consists of the reception system of the GPS frequency standard, frequency scale comparing system, frequency scale measuring system and the computer system. The input signal of the GPS frequency standard receives the GPS frequency via the GPS antenna and carries its output to the frequency scale comparing system which processes the standard frequency from the GPS frequency standard and the detecting frequency from the frequency scale measuring system and carries it to the computer system. After that, the result is displayed on the screen or output by the printer. It has merits as low investment, high accuracy and wide applied range.

Description

technical field [0001] The present invention relates to a time-frequency calibration system, especially a frequency standard calibration system that uses GPS frequency as a standard frequency to analyze system frequency errors and provide accurate data for error correction. Specifically, it is a frequency standard calibration system based on GPS frequency Source frequency standard calibration system. Background technique [0002] Time frequency is widely used in all walks of life of the national economy, ranging from aerospace engineering to people's daily life, all the time. Especially in national defense military products, it plays a more significant role. In military equipment, most frequencies with high frequency accuracy and stability are used as reference sources. The frequency accuracy of these reference sources is generally within 1×10 -7 ~1×10 -8 , with a daily stability of 1×10 -8 ~1×10 -9 . Most of these reference sources use quartz crystal oscillators. Qua...

Claims

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Application Information

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IPC IPC(8): G01R23/02G01R35/00
Inventor 李兆荣张娟陆洋赵晨
Owner 南京电子计量有限公司
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