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Bandwidth characteristic curve fitting system, method and device

A technology of characteristic curve and bandwidth, applied in the field of fitting system of bandwidth characteristic curve, can solve the problem of fitting time and so on

Pending Publication Date: 2021-03-26
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a bandwidth characteristic curve fitting system, method and device to solve the problem of too long fitting time

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  • Bandwidth characteristic curve fitting system, method and device

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Embodiment Construction

[0058] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0059] In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating the description of the present application and has no specific meaning by itself. Therefore, "module" and "component" may be mixedly used.

[0060] In order to solve the problems mentioned in the backgr...

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Abstract

The invention provides a bandwidth characteristic curve fitting system, method and device, and belongs to the technical field of bandwidth data, and the method comprises the steps: generating a digital quantity sequence according to initial reference point information, wherein the reference point information comprises a frequency and an amplitude corresponding to the frequency; controlling broadband signal generation equipment to convert the digital quantity sequence into a digital calibration signal, and converting the digital calibration signal into an initial waveform; controlling a spectrum analyzer to perform fast Fourier transform on the initial waveform to obtain a target amplitude-frequency response curve; acquiring a target reference point amplitude in the amplitude-frequency response curve, and fitting a bandwidth characteristic curve according to the amplitude of the initial reference point in the digital calibration signal and the target reference point amplitude, wherein the target reference point amplitude and the amplitude of the initial reference point correspond to reference points with the same frequency. According to the invention, the calibration frequency is reduced, and the fitting efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of bandwidth data, in particular to a fitting system, method and device of a bandwidth characteristic curve. Background technique [0002] In the broadband signal generation system, some application scenarios require the system to maintain a good bandwidth flatness in a wide frequency band. At this time, it is generally necessary to calibrate the actual physical bandwidth to obtain the actual bandwidth parameters of the physical channel, and then use the digital signal processing method Bandwidth flatness compensation is performed to complete the calibration of the entire bandwidth flatness. [0003] The calibration bandwidth includes multiple reference points. In the traditional bandwidth flatness calibration process, it is necessary to calibrate the amplitude of multiple reference points step by step. Each calibration requires the signal generation system to send a single tone signal, and then th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F17/14
CPCG06F17/142G06F2218/02G06F2218/00G06F2218/10
Inventor 刘家玮陈文棵王红宇胡志臣武福存储艳莉杨立杰刘文旭黄月芳苏前银谢金源
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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