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

Method and device for determining antenna noise temperature caused by spherical blackbody radiation

A technology of antenna noise temperature and black body radiation, applied in the field of aerospace measurement and control, can solve problems such as inconvenient handling

Active Publication Date: 2019-09-06
NO 63921 UNIT OF PLA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such an "irregular" integration area, even if the numerical integration method is used, it is inconvenient to deal with

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
  • Method and device for determining antenna noise temperature caused by spherical blackbody radiation
  • Method and device for determining antenna noise temperature caused by spherical blackbody radiation
  • Method and device for determining antenna noise temperature caused by spherical blackbody radiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The technical solution of the invention is mainly used for calculating the normalized noise temperature of the receiving antenna caused by the radiation of the spherical black body. The present invention is based on the integral calculation formula of the antenna noise temperature of the ground measurement and control station, aiming at the common spherical black body model, using the integral coordinate transformation and the spherical trigonometry formula to obtain an explicit expression that is convenient for calculation, and calculates the radiation caused by the spherical black body Normalized noise temperature.

[0063] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0064] figure 1 is a simplified flowchart illustrating a method 100 for determining antenna noise temperature due to spherical black body radiation in accordance with the present invention.

[0065] Such as figure 1 As shown in ,...

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 relates to a method and device for determining antenna noise temperature caused by spherical blackbody radiation and a computer readable storage medium. Aiming at the problem of integralcalculation of normalized noise temperature caused by spherical blackbody radiation, through transformation of a coordinate system, the method transforms an irregular integral area into a regular integral area, and obtains an integral function under a new coordinate system through a spherical triangle formula, so that integral calculation becomes easy to process. The knowledge fusion method is clear in model and convenient for numerical calculation, and the calculation result can be used for measurement and control performance analysis in related scenes.

Description

technical field [0001] The present invention generally relates to the technical field of aerospace measurement and control. More specifically, the present invention relates to methods and apparatus for determining the temperature of antenna noise caused by spherical black body radiation. Background technique [0002] Celestial radiation noise is an influencing factor that must be considered in aerospace measurement and control, especially in deep space measurement and control. While the TT&C antenna is pointing to the detector, some celestial bodies sometimes partly or even completely enter the effective beam of the TT&C antenna. For example, in a lunar exploration mission, when the TT&C antenna tracks the lunar probe, the moon will also enter the TT&C antenna beam; for another example, when the sun-spacecraft-TT&C antenna are collinear (ie transit), the sun will enter the TT&C antenna beam Inside. At this time, celestial radiation will increase the noise temperature of t...

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
IPC IPC(8): G06F17/10
CPCG06F17/10
Inventor 徐得珍李赞李海涛郝万宏程承
Owner NO 63921 UNIT OF PLA