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Multi-target simulation method, device and system for phased array secondary radar system

A technology of secondary radar and simulation method, applied in the field of multi-target simulation, to achieve the effect of flexible construction, strong reconfigurability and wide application platform

Pending Publication Date: 2022-01-21
四川九洲空管科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the limitations of existing secondary radar target simulation technology, the present invention provides a multi-target simulation method for phased array secondary radar system

Method used

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  • Multi-target simulation method, device and system for phased array secondary radar system
  • Multi-target simulation method, device and system for phased array secondary radar system
  • Multi-target simulation method, device and system for phased array secondary radar system

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Embodiment 1

[0057] The existing secondary radar target simulation system is not suitable for phased array secondary radar systems using new technologies such as antenna array technology, multi-channel reception, and digital beamforming; and the target simulation for phased array secondary radar systems cannot achieve multiple The distance, azimuth, and code simulation of each target cannot be systematically tested and verified for the multi-target recognition processing capability of the phased array secondary radar system. In response to the above problems, this embodiment proposes a multi-target simulation method for a phased array secondary radar system. This embodiment realizes the phased array secondary radar system by simulating the distance, azimuth, and code of multiple targets. The multi-target recognition processing capability is systematically tested and verified.

[0058] Such as figure 1 As shown, the method of the present embodiment includes:

[0059] Step 1. Calculate the...

Embodiment 2

[0077] This embodiment proposes a multi-target simulation device for a phased array secondary radar system, such as figure 2 As shown, it includes a first calculation unit, a second calculation unit, a timing generation unit and a control unit.

[0078] Wherein, the first calculation unit calculates the maximum number of simulated targets and the minimum distance between simulated targets according to the maximum operating distance of the phased array secondary radar system and the delay of the target simulation system.

[0079] The second calculation unit calculates in real time the phase weighted value corresponding to the simulated target generated in each azimuth within the coverage area according to the towing azimuth and beam coverage of the phased array secondary radar system.

[0080] The sequence generation unit forms a multi-target control sequence based on the query decoding information and the response coding start time as a reference point.

[0081] During the r...

Embodiment 3

[0083] This embodiment proposes a multi-target simulation system for a phased array secondary radar system, such as image 3 As shown, the system includes a signal processing module, a transmitting module, a receiving module, a beam forming and a channel module.

[0084] Wherein, the transmitting module, the receiving module, the beam forming module and the channel module are all communicated with the signal processing module. As the main controller of the system, the signal processing module is used to realize the control of the transmitting module, receiving module, beam forming and channel module.

[0085] The transmitting module is communicatively connected with the beamforming and channeling module.

[0086] The signal processing module uses the multi-target analog device proposed in the above-mentioned embodiment 2 to generate a multi-target control sequence number, and controls the beamforming and channel modules according to the multi-target control sequence to proces...

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Abstract

The invention discloses a multi-target simulation method, device and system for a phased array secondary radar system. The method comprises the steps of calculating the maximum number of simulation targets and the minimum distance between the simulation targets, calculating a phase weighted value corresponding to a simulation target generated in each azimuth in the coverage range in real time according to the traction azimuth and the beam coverage range of the phased array secondary radar system, forming a multi-target control time sequence by taking the response coding starting moment as a reference point according to the inquiry decoding information, and in the response period, controlling the transmitting module to generate a radio frequency signal according to the multi-target control time sequence, and controlling the beam forming and channel module to process the radio frequency signal to form a multi-target radio frequency signal after multi-channel digital beam forming. A multi-target time sequence control technology and a self-adaptive digital beam forming technology are adopted, so that the multi-target identification processing capability of the phased array secondary radar system can be systematically tested and verified.

Description

technical field [0001] The invention belongs to the technical field of secondary radar target simulation, and in particular relates to a multi-target simulation method, device and system for a phased array secondary radar system. Background technique [0002] Phased array secondary radar is an advanced secondary radar system. Compared with traditional mechanical scanning secondary radar, phased array secondary radar has agile non-inertial beam scanning and powerful multi-target processing capabilities. Aviation, aerospace and other fields have been widely used. [0003] The multi-target simulation technology of the traditional monopulse secondary radar system has been relatively mature, and has been widely used in the secondary radar test and verification system based on the sum-difference three-channel monopulse receiving technology. [0004] In the development and application process of the phased array secondary radar system, it is also necessary to provide a multi-targe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S13/74
CPCG01S7/40G01S13/74
Inventor 张尧程旗陈兴德王爱国
Owner 四川九洲空管科技有限责任公司