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A phased array radar single-pulse high-resolution angle measurement system and method

A phased array radar and monopulse technology, which is applied to radio wave measurement systems, measurement devices, instruments, etc., can solve the problem of no longer being effective, and achieve the effects of low cost, increased signal-to-noise ratio of received signals, and simple structure

Active Publication Date: 2021-07-20
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

When the outside world is spatially colored noise or there is main lobe interference, the traditional monopulse algorithm is no longer effective, so proposing an algorithm that can achieve high resolution of the target has important engineering application value

Method used

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  • A phased array radar single-pulse high-resolution angle measurement system and method
  • A phased array radar single-pulse high-resolution angle measurement system and method
  • A phased array radar single-pulse high-resolution angle measurement system and method

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Embodiment Construction

[0068] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0069] Such as figure 1 As shown, it is a block diagram of a phased array radar monopulse high-resolution angle measurement system of this embodiment. The system adopts the method of separating the transmitting and receiving antennas. The system specifically includes: a transmitting antenna 10 for transmitting monopulse signals; The first receiving antenna 1 and the second receiving antenna 2 receive the single pulse echo signal reflected by the target to form a beam scanning angle; the signal processor 8 is used to process the first receiving antenna 1 and the second receiving antenna 2 The received single pulse echo signal calculates the angle information of the target and the echo power and value of each receiving antenna under the action of the target, and is also used for receiving / transmitting beam weightin...

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Abstract

The invention discloses a phased array radar monopulse high-resolution angle measurement system and method. The system comprises: at least one transmitting antenna for transmitting monopulse signals; at least two receiving antennas for receiving monopulse reflected by targets The echo signal constitutes the beam scanning angle, and the configurations of the receiving antennas are the same; the signal processor is used to process the single pulse echo signal received by the receiving antenna, and calculate the information of the target and the echo of each receiving antenna under the action of the target. The wave power and value are also used for the weighting of receiving / sending single pulse signals, amplitude and phase correction, and storage or loading of working parameters; the host computer receives the information transmitted from the signal processor through the network port. Its advantages are: the system adopts the method of separating the transmitting antenna and the receiving antenna, which can easily realize the formation of low sidelobe transmitting and receiving beams and increase the scanning range. The problem is to achieve super-resolution of angularly adjacent targets.

Description

technical field [0001] The invention relates to the field of radar target tracking, in particular to a phased array radar single-pulse high-resolution angle measurement system and method. Background technique [0002] The monopulse angle measurement algorithm is a fast and effective angle estimation algorithm commonly used at present. It has been widely used in practical radar systems because of its relatively simple implementation, high angle measurement accuracy and good robustness. However, when multiple targets appear in the detection area, and only one or a few of them are really concerned, and the others are interference, it is time-consuming to distinguish which target is a valid target; Under the edge-scan system, when the distance and speed of two targets are the same, and there is only a slight difference in angle, the detection and tracking of the target becomes particularly difficult. One solution is to use super-resolution radar, which can effectively distingu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/02G01S7/40G01S7/41
CPCG01S7/4026G01S7/41G01S13/02
Inventor 邹小东戴雯王静郑巧珍蒋兵兵郭晓双祝伟才方革非
Owner SHANGHAI RADIO EQUIP RES INST
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