A fast search method based on full airspace early warning one-dimensional rotating phased array radar

A search method and radar search technology, applied in the field of radar, can solve the problems of reducing the service life of the mechanism and the airspace search speed, and cannot be carried out at the same time, and achieve the effect of improving the airspace search speed, improving the service life and reducing the search time.

Active Publication Date: 2018-09-28
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

However, the invention cannot carry out azimuth dimension search and elevation dimension search at the same time when performing airspace search, and requires constant start-stop mechanism, which reduces the service life of the mechanism and the speed of airspace search

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  • A fast search method based on full airspace early warning one-dimensional rotating phased array radar
  • A fast search method based on full airspace early warning one-dimensional rotating phased array radar
  • A fast search method based on full airspace early warning one-dimensional rotating phased array radar

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Embodiment Construction

[0028] The invention provides a fast search method based on the whole airspace early warning one-dimensional rotating phased array radar. In the present invention, the azimuth dimension search and the pitch dimension search are carried out synchronously, wherein the pitch dimension adopts phase scanning, and the azimuth dimension adopts mechanical scanning. The schematic diagram of the beam scanning is as follows figure 2 with image 3 shown. At the same time, combined with the actual radar system, under the actual situation that the "2 out of 2" rule is adopted and the radar beam pointing is not synchronized with the wave position processed by the signal processor, the search process is divided into the target detection process and the target confirmation process. Only when a target is detected in the process does it need to enter the target confirmation process, and its airspace search flow chart is as follows Figure 4 shown.

[0029] The fast search method of the prese...

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Abstract

The invention provides an all-airspace-early-warning-based rapid searching method for a one-dimensional rotating phased array radar. Direction dimensional searching and pitching dimensional searching are carried out synchronously; and the pitching dimension employs a phase scanning way and the direction dimension employs a mechanical scanning way. Meanwhile, with a practical radar system, the searching flow is divided into a target detection flow and a target confirmation flow by using a two-out-of-two rule under the practical circumstance that the radar beam direction and the processing beam position of the signal processing machine are not synchronous; and the target confirmation flow does not need to be executed until a target is detected at the target detection flow. According to the invention, starting or stopping of the mechanism during the searching period is not required; the service life of the mechanism and the airspace searching speed are increased effectively; and the method is especially suitable for the rapid airspace searching field of the effective load on the satellite-borne application platform with limited resources.

Description

technical field [0001] The present invention relates to a rapid search method based on full airspace early warning one-dimensional rotating phased array radar in the field of radar, and is especially suitable for fast airspace search technology for payloads on spaceborne application platforms with limited resources. Background technique [0002] At present, domestic spaceborne radars usually use two-dimensional mechanical scanning or two-dimensional phased array scanning for airspace search. The search speed of the two-dimensional mechanical scanning method is slow and it is easy to generate disturbance moments on the satellite body, which increases the burden of satellite attitude control and affects the control accuracy of the platform. It is not suitable for searching and capturing high-speed targets; two-dimensional phased array scanning has beam agility and reliability High, fault tolerance, no influence of disturbance moment of mechanical moving parts, etc., but the nu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/04G01S13/42G01S7/285
CPCG01S7/285G01S13/04G01S13/426G01S13/428G01S2013/0245
Inventor 刘斌赵学州雷威高策郭冬梅武俊强
Owner SHANGHAI RADIO EQUIP RES INST
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