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Multi-target tracking beam pointing method for centralized mimo radar radio frequency stealth

A multi-target tracking and beam pointing technology, which is applied in the field of multi-target tracking beam pointing in centralized MIMO radar radio frequency stealth, and can solve problems such as multi-target tracking beam pointing methods that do not involve MIMO radar.

Inactive Publication Date: 2017-08-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] However, the above research does not involve the multi-target tracking beam pointing method for MIMO radar radio frequency stealth

Method used

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  • Multi-target tracking beam pointing method for centralized mimo radar radio frequency stealth
  • Multi-target tracking beam pointing method for centralized mimo radar radio frequency stealth
  • Multi-target tracking beam pointing method for centralized mimo radar radio frequency stealth

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Embodiment Construction

[0127] For the centralized MIMO radar of any array, through the optimization of this technical solution, the radio frequency stealth performance of the radar can be improved while ensuring the radar detection performance.

[0128] In order to simplify the simulation, it is assumed that each target has the same distance from the radar, that is, R n =R, n=1,2,...,N. The radar antenna array takes the uniform linear array as an example. The total number of elements of the MIMO radar array is M=64, and the optional set of the number of sub-arrays K is {1,2,4,8,16,32,64}, and the total peak transmit power P t The value range of is [1,1000]W.

[0129] References (Burns, P.D.; Blair, W.D., "Optimal phased array radar beampointing for MTT," Aerospace Conference, 2004. Proceedings. 2004 IEEE, vol.3, no., pp., 1858 Vol.3, 6-13 March 2004), created A cluster (target set) containing 2 targets. The distance between each target is half of the 3dB beamwidth of the gain pattern obtained wh...

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Abstract

The invention provides a multi-target tracking beam pointing method for centralized MIMO radar radio frequency stealth, which belongs to the technical field of communication radar. Assuming that the intercepting receiver obeys a uniform distribution in the area of ​​uncertainty in its position, the objective function is established as the target by minimizing the average signal-to-noise ratio of the radar signal received at the intercepting receiver, and the position of the target is modeled as a random quantity, ensuring The probability that the echo signal-to-noise ratios of all targets are greater than a preset value is not less than a certain value. The parameters obtained by optimizing the optimization model of the present invention can minimize the average signal-to-noise ratio of the radar signal at the intercepting receiver while ensuring the performance of the radar echo signal-to-noise ratio, thereby reducing the radar intercepted receiver as much as possible. probability of detection.

Description

technical field [0001] The invention belongs to the technical field of communication radars, and in particular relates to a multi-target tracking beam pointing method for centralized MIMO radar radio frequency stealth. Background technique [0002] MIMO radar is a radar system in which multiple transmitting antennas transmit different waveforms independently, and multiple antennas are used to receive and detect at the receiving end. For the centralized MIMO radar, it transmits an orthogonal waveform, which can form a wide beam in the airspace, realize a search for a larger airspace at one time, and have more flexible signal processing methods, such as detecting weak targets by suppressing strong clutter, More powerful anti-interference ability, effectively increasing the virtual aperture of the antenna and the ability to detect low-speed targets, etc. At the same time, the centralized MIMO radar can effectively reduce the power density at the reconnaissance equipment, makin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/66
CPCG01S13/66G01S2013/0281
Inventor 程婷武俊青杨少委张洁张宇轩
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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