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Single-pulse high-precision angle measuring system and method

A high-precision, single-pulse technology, applied in the direction of radio wave measurement system, measurement device, radio wave reflection/re-radiation, etc., can solve the problems of unable to process the pulse, unable to measure the target angle, etc., and achieve the goal of improving the accuracy of angle measurement Effect

Active Publication Date: 2014-05-14
四川九洲空管科技有限责任公司
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Problems solved by technology

However if figure 2 The pulse signal shown has been submerged in the noise or interference signal, and the conventional processing method cannot process the pulse correctly, so the angle of the target cannot be measured

Method used

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0039] Such as image 3 and Figure 4 As shown, a single-pulse high-precision angle measurement system includes a transmitter 2 and a receiver 3 respectively connected to the antenna 1, and a signal processor 4 connected to the transmitter 2 and ...

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Abstract

The invention provides a single-pulse high-precision angle measuring system and method, and belongs to the field of navigation management secondary radars. According to the scheme, base band digital signals are demodulated through synchronized PN codes, original useful signals are restored, and then noise and interference signals are restrained; the amplitude of the restored original useful signals is detected; phase judgment is conducted through the amplitude of a sum channel and the amplitude of a difference channel, and sum amplitude information, difference amplitude information and a phase judgment result are resolved; an OBA value function is acquired according to the resolved sum amplitude information, the resolved difference amplitude information and the resolved phase judgment result for target azimuth calculation. Anti-interference capacity of a novel secondary radar system can be improved, the influence of the multipath effect can be reduced, and the angle measuring accuracy of the novel secondary radar system can be further improved through an improved amplitude single-pulse angle measuring technology adopting an OBA curved surface function method and an accumulated weight processing method.

Description

technical field [0001] The invention relates to a single-pulse high-precision angle-measuring system and an angle-measuring method thereof, in particular to a single-pulse high-precision angle-measuring system and an angle-measuring method suitable for the field of modern air traffic control secondary radar. Background technique [0002] The secondary radar system is one of the important means in the field of modern aviation control. It greatly enhances the accuracy of aviation command and control and the coordination of the controlled target, and improves the ability of scene awareness. With the deepening of the application of the secondary radar system, the actual monitoring requirements have higher and higher requirements for the detection capability of the target, among which higher requirements are put forward for high-precision lateral performance. From the conventional sliding window angle measurement technology to the amplitude monopulse angle measurement technology,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/76G01S7/41
CPCG01S7/292G01S13/76G01S13/91
Inventor 何川李宏李荣李海军
Owner 四川九洲空管科技有限责任公司
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