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Accurate positioning method of radar responder

A radar transponder, precise positioning technology, applied to instruments, radio wave reflection/re-radiation, utilization of re-radiation and other directions, can solve the problem of not having a big impact, achieve precise positioning, eliminate the influence of wave echoes, and shorten the search effect of time

Active Publication Date: 2014-05-07
SUZHOU JIANGHAI COMM DEV IND
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

For ships with larger search and rescue units, the impact is not too great because they can see at a closer distance

Method used

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  • Accurate positioning method of radar responder
  • Accurate positioning method of radar responder
  • Accurate positioning method of radar responder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as image 3 As shown, the delayed response triangular wave scanning response signal format schematic diagram of the present invention, the scanning mode of the transponder is triangular wave scanning, and the triangular wave scanning is periodic scanning, each cycle includes a forward process and a reverse process, and the forward process is from the beginning The process of scanning from the frequency f1 to the stop frequency f2, the retrace process is the process of scanning from the stop frequency f2 to the start frequency f1, and the scan time of the forward process is the same as that of the retrace process. The distance between the starting point of the triangular wave scan and the response point of the forward process of the first cycle is the ranging error err; the distance between the response point of the reverse process of each cycle and the response point of the normal process of the next cycle δ is twice the ranging error err. At the same time, a dela...

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Abstract

The invention discloses an accurate positioning method of a radar responder, comprising a radar, a responder and a delayed response signal. The responder is used for receiving the pulse signal sent by the radar, scanning the work frequency of the pulse signal sent by the radar and sending the response signal which has the same work frequency as the pulse signal sent by the radar. The radar is used for receiving the response signal sent by the responder and displaying the response point. The responder adopts the triangular-wave scanning mode. The delayed response signal is arranged before carrying out the triangular-wave scanning. The accurate positioning method of the radar responder has the advantages that: the position indication precision errors introduced in due to different work efficiency of the radar are corrected, the searching time is shortened, the influence of the sea wave echo is eliminated, and the quick rescuing is realized.

Description

Technical field [0001] The invention involves a radar response device, which specializes in a method of precise positioning of radar response. Background technique [0002] The search and rescue radar responder is a radio equipment used to instruct the rescuer to the rescuer in the risk of danger.According to the International Maritime Organization (IMO), all kinds of sea vessels should be equipped with different numbers of responsers.National standard GB15216 "Global Maritime Insurance Safety System (GMDSS) search and rescue radar response (SART) performance requirements" equivalent use of IEC 1097-1 international standard "Global Maritime Insurance and Security System (GMDSS) Search and Rescue Radar Answers (SART)-"Operation and performance requirements, test methods, and test results" "The performance requirements of the corresponding answers are made in detail.The response signal format adopted by the national standard and international standards is a sawtooth wave scan, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/08G01S7/40
Inventor 于佳音陈晓鑫王玲
Owner SUZHOU JIANGHAI COMM DEV IND
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