A method for automatically acquiring YIG tuned filter compensation data

A technology for tuning filters and compensating data, which is applied to instruments, measuring devices, and measuring electrical variables. It can solve the problems of high production costs and low production efficiency, and achieve the effects of improving debugging efficiency, saving manpower, and shortening the production cycle of instruments.

Active Publication Date: 2017-12-12
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of low production efficiency and high production cost due to the need to manually obtain the dynamic compensation data of the YIG filter in

Method used

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  • A method for automatically acquiring YIG tuned filter compensation data
  • A method for automatically acquiring YIG tuned filter compensation data
  • A method for automatically acquiring YIG tuned filter compensation data

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Embodiment Construction

[0039] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0040] Such as Figure 4-Figure 7 As shown, a method for automatically obtaining dynamic tuning and compensation data of a YIG filter is used for debugging and calibration of the signal analyzer production process. The comb wave generator 1 built in the signal analyzer is equivalent to the signal source and provides input inspection signals . In order to obtain compensation data and provide inspection signals, the comb wave signal output by the comb wave generator enters the YIG filter 3 through the single pole double throw switch 2 . In the tuning process driven by linear voltage or linear current, because the tuning process is affected by hysteresis characteristics, there is a certain hysteresis effect in the filter moving process, so that even if different comb wave signals with exactly the same power, the power tested ...

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Abstract

The invention provides a method for automatically acquiring YIG tuned filter compensation data and specifically relates to the technical field of signal analyzer dynamic non-linear compensation data acquisition. The method for automatically acquiring YIG tuned filter compensation data is applied to production debugging and calibration of signal analyzers and can achieve high-speed and high-precision linear tuning of a YIG tuned filter. In a production debugging or calibration process, a comb generator embedded in the front end of a radio frequency channel of a signal analyzer provides inspection input signals as a signal source. When YIG filter tuning is performed under a linear voltage or linear current (main tuning drive) , lag offsets vary with tuning frequency points, so that different comb wave signals with the same power do not have the same testing power after passing the a YIG filter. Proper compensation drive is provided for different tuning frequency points by invoking compensation data, so that a transient position of the YIG filter in a dynamic tuning process is consistent with that in static tuning and signal power testing is not influenced by a tuning process of the YIG filter.

Description

technical field [0001] The invention relates to the technical field of acquisition of dynamic nonlinear compensation data of a signal analyzer, in particular to a method for automatically acquiring compensation data of a YIG tuning filter. Background technique [0002] The fast tuning of the signal analyzer is mainly limited by the characteristics of the core component, the YIG filter. Under static conditions, the tuning frequency of the YIG filter is linearly corresponding to the driving current. However, under dynamic conditions, the driving current to realize the linear fast tuning of the YIG filter is not linear. In the case that the fast tuning function model of the YIG filter cannot be given at present, the more classic drive design adopts a dual drive scheme, that is, the drive tuning current is generated jointly by two channels. According to the static tuning characteristics, one drive generates high-precision, high-accuracy and linearly changing main drive tuning;...

Claims

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Application Information

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IPC IPC(8): G01R35/00
Inventor 郭小文许建华张超杜会文赵永志闫亚力
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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