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Reply detection in a secondary surveillance radar

一种二次监视雷达、检测阈的技术，应用在测量装置、无线电波测量系统、无线电波的反射/再辐射等方向

Inactive Publication Date: 2010-11-17
SELEX SISTEMI INTEGRATI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0090] Furthermore, in the case of identifying the preamble and thus the Mode S reply, the digital processing means typically disables a processor configured to process legacy replies

Method used

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  • Reply detection in a secondary surveillance radar
  • Reply detection in a secondary surveillance radar
  • Reply detection in a secondary surveillance radar

Examples

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Embodiment Construction

[0129] The description provided below will enable any person skilled in the art to make and use the invention. Modifications proposed to the various embodiments will be readily apparent to those skilled in the art, and the general principles disclosed herein may be applied to other embodiments and applications without departing from the scope of the present invention.

[0130] Accordingly, the present invention should not be understood as limited to the described and illustrated embodiments, but must be accorded the widest possible scope consistent with the principles and characteristics set forth herein and defined in the appended claims .

[0131] According to the present invention, in order to overcome the falsification effect of the Mode S response on the traditional response, the technology of ensuring the constant false alarm rate (CFAR) is advantageously developed in the SSR, wherein the constant false alarm rate (CFAR) technology has been used in the field of PSR To s...

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Abstract

The present invention relates to a detecting device (10; 20; 20') for detecting an SSR signal having a characteristic structure. The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22'). The characteristic structure of the SSR signal comprises either a preamble or an initial pulse and a final pulse separated by a fixed dwell time. The means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22') comprisecomputing means configured to compute a detection threshold on the basis of a signal supplied by the filtering means (11; 21), and decision means configured to detect the SSR signal on the basis of the detection threshold and of the signal supplied by the filtering means (11; 21).

Description

technical field [0001] The invention relates to the detection of Secondary Surveillance Radar (SSR) signals in signals received by a coordinated radiolocation system, wherein said coordinated radiolocation system is configured to operate with signals of this type. [0002] In particular, the invention finds advantageous application precisely in the field of Secondary Surveillance Radar (SSR), but this application is not unique, and the following discussion will make explicit reference to this SSR, which in turn means Without loss of generality. Background technique [0003] It is well known that today, the air traffic control (ATC) performed by almost all countries in the world over at least a part of their own airspace is mainly based on radar systems. [0004] Said radar system comprises radars of the type known as Primary Surveillance Radar (PSR) and of the type known as Secondary Surveillance Radar (SSR). [0005] Typically, a PSR emits a pulse at radio frequency via a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/78G01S7/288G01S7/292
CPCG01S7/2922G01S13/782G01S13/784
Inventor 法布里齐奥·菲奥里加斯帕雷·加拉蒂斯特凡诺·杰利埃米利奥·朱塞佩·皮拉奇
Owner SELEX SISTEMI INTEGRATI
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