Unlock instant, AI-driven research and patent intelligence for your innovation.

Noise parameter determination method and device for microwave noise receiver

A technology of noise parameter and determination method, applied in the direction of spectrum analysis/Fourier analysis, etc., can solve the problems of inability to know high accuracy and low measurement accuracy of noise parameters, so as to improve measurement efficiency, simple calculation method, and measurement accuracy. high effect

Active Publication Date: 2020-11-24
THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a method and device for determining noise parameters of a microwave noise receiver, aiming to solve the problem in the prior art that the measurement accuracy of noise parameters is low or the solution method of higher-precision noise parameters cannot be known

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Noise parameter determination method and device for microwave noise receiver
  • Noise parameter determination method and device for microwave noise receiver
  • Noise parameter determination method and device for microwave noise receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0051] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0052] figure 1 It is a schematic diagram of the realization flow diagram of the noise parameter determination method of the microwave noise receiver provided by the embodiment of the present invention, using a noise parameter measurement system, such as figure 2 The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is suitable for the technical field of microwave / millimeter wave testing, and provides a noise parameter determination method and device for a microwave noise receiver, and the method comprises the steps: calibrating a noise parameter measurement system, and carrying out the measurement through the calibrated noise parameter measurement system, and obtaining a noise-related parameter; establishing a linear overdetermined equation of the noise receiver according to the noise related parameters; and solving the linear overdetermined equation to obtain the value of the unknown column vector, and calculating the noise parameter of the noise receiver according to the value of the unknown column vector, thereby representing the noise parameter of the noise receiver. According to the invention, a high-precision noise parameter measurement system is used to measure noise-related parameters. The linear overdetermined equation is set and solved by using the least square method, andthe noise parameter of the noise receiver is calculated according to the unknown column vector of the obtained linear overdetermined equation, so that the noise parameter measurement precision is relatively high, the noise parameter calculation method is simple, and the noise parameter measurement efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of microwave / millimeter wave testing, and in particular relates to a method and device for determining noise parameters of a microwave noise receiver. Background technique [0002] Noise figure is a quality factor used to describe the amount of excessive noise in a system, so reducing the noise figure to a minimum can reduce the impact of noise on the system. Noise parameters include the minimum noise figure F min , the best source reflection coefficient Γ opt and equivalent noise resistance R n . [0003] The most common noise parameter measurement system currently used is composed of a noise source and a noise figure meter. The noise source provides a standard noise signal, and the noise figure meter measures the noise when the noise source is at two different resource noise powers (or different noise temperatures). The total noise signal after the standard noise signal passes through the device under ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/20
CPCG01R23/20Y02T90/00
Inventor 刘晨吴爱华王一帮孙静孔令甲栾鹏霍晔张立飞丁立强
Owner THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP