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Two-stage distributed cooperative source location method based on pseudo code spread spectrum

A distributed, source location technology, applied in the field of radar detection, can solve the problem of radar system failure and other problems, achieve good correlation characteristics, reduce the probability of reconnaissance, and solve the effect of ranging accuracy

Active Publication Date: 2011-06-29
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology

The station is not destroyed, which has some advantages, but it is easy to be detected and located because the station always emits signals when it is on alert
and destroyed, and once the launch station is destroyed, the entire radar system is useless

Method used

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  • Two-stage distributed cooperative source location method based on pseudo code spread spectrum
  • Two-stage distributed cooperative source location method based on pseudo code spread spectrum
  • Two-stage distributed cooperative source location method based on pseudo code spread spectrum

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Embodiment Construction

[0045] The co-location system has a plurality of components, and the detection equipment needs to be arranged separately geographically, so

[0057] The target scattering signal received at the receiving end is a pseudo-code signal that has modulated the target information, because the air target

[0058]

[0064]

[0068] Because the air target generally has a higher speed, the positioning system needs to have a higher tracking speed, and it is designed to have a

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Abstract

The present invention is a two-stage distributed cooperative source positioning method based on pseudo-code spread spectrum, which involves radar detection technology, absorbs the advantages of distributed systems and computer network systems, and realizes the system's positioning search capture and positioning tracking functions separately, reducing the Difficulty in technical implementation. A method and technology for long-distance and high-precision detection of air, ground and sea targets is proposed by using cooperative pseudo-code spread spectrum signals to construct a distributed detection system. The present invention is not only different from the systems and methods of air target detection using the non-cooperative signals of terrestrial TV stations, radio stations and mobile communication base stations that have been developed at home and abroad, but also different from the passive positioning that uses the radiation source carried by the target to achieve detection. system. It can realize reliable detection of unconventional and conventional targets such as stealth aircraft, cruise missiles, and ultra-low-altitude aircraft in a large area, which is of great military value.

Description

Two-level distributed collaborative source location method based on pseudo code spread spectrum Technical field [0001] The present invention relates to the technical field of radar detection, which belongs to the passive detection and positioning technology of air targets. Background technique Along with the development of modern military technology, the particularly stealth aircraft of new concept, electronic jamming, anti-radiation The emergence of missiles and ultra-low-altitude raids have constituted the four major threats to traditional radars, giving traditional defense systems based on active radars a The air system has brought great challenges, forcing the radar system known as "the clairvoyance of modern warfare" to be theoretically and technically Make changes at the top and the system. With the development and maturity of electronic technology and electromagnetic theory, radar experts have proposed many "four A number of radar technologies and systems with ...

Claims

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Application Information

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IPC IPC(8): G01S5/14G01S5/04
Inventor 李圣明施浒立杨朋翠宁春林
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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