Radar altimeter low interception performance test method

A test method and altimeter technology, which are applied in measurement devices, radio wave measurement systems, reflection/re-radiation of radio waves, etc., to achieve the effects of low cost, interference avoidance, and high precision

Active Publication Date: 2019-07-23
10TH RES INST OF CETC
View PDF11 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the low interception performance of the current radar altimeter is difficult to accurately and quantitatively evaluate, and to provide a test wi...

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
  • Radar altimeter low interception performance test method
  • Radar altimeter low interception performance test method
  • Radar altimeter low interception performance test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 . According to the present invention, the longitude, latitude, height and attitude parameters of the aircraft are edited by the control computer, the complex terrain file library and the antenna pattern of the radar altimeter are loaded, and the complex scene simulation information is sent to the radar altimeter and the complex scene simulator of the radar altimeter ; The radar altimeter complex scene simulator generates echo signals, and outputs the generated echo signals to the radar altimeter; the radar altimeter starts the radio frequency control software according to the echo signals and complex scene simulation information, and manages the radar altimeter in real time. Radiation switch status, analyze the demand for effective radiation power when the radar altimeter works normally at any height within the altimetry range, determine the minimum radiation power under the premise of meeting the high performance, and the antenna connected through 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 discloses a radar altimeter low interception performance test method, aiming to provide a radar altimeter low interception performance test method with full test index, high test precision and low test cost. The invention is realized through the following technical scheme: sending complex scene simulation information to a radar altimeter complex scene simulator by using a control computer; outputting a generated echo signal to the radar altimeter to start the radio frequency control software; managing the radiation switch status of the radar altimeter in real time; analyzing theneed for effective radiant power when the radar altimeter is operating normally at anyone height in the altimetry range; determining the minimum radiant power under the premise of meeting the altimetry performance; sending a transmitting signal to a power meter through an antenna connected to a power divider; testing the transmitting signal of the radar altimeter; transmitting the radiant time andradiant power to a performance analysis computer; and performing analysis according to the radiation parameter measurement results of the power meter, and calculating to obtain the power control range, the step, the accuracy and an interception factor.

Description

technical field [0001] The invention relates to a method for testing the low intercept performance of a radar altimeter. Background technique [0002] Radar altimeter is an active remote sensing device, which uses radio technology to measure the vertical distance between the aircraft and the current earth's surface. It was initially used to measure the altitude of the aircraft above the ground, and then gradually expanded to other aspects, such as low-altitude navigation, terrain avoidance, etc. application. The radar altimeter uses the echo of its own transmitted signal to realize the altimetry function. The echo of the radar altimeter is formed by the backscattering and reflection of the electromagnetic waves radiated by the radar altimeter from the surface of the earth. The surface of the earth is the target of the radar altimeter. The wave is the surface target echo, which is much more complicated. The radar altimeter echo is related to the scattering characteristics ...

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): G01S7/40G01S13/08G01S13/93
CPCG01S7/4052G01S13/08G01S13/933
Inventor 曾小东杨芸王亚涛焦健任然白建亮
Owner 10TH RES INST OF CETC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap