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Single pulse multiple target tracking method and system

A multi-target tracking and single-pulse technology, applied in radio wave measurement systems, instruments, measuring devices, etc., can solve the problems of complex and expensive electromechanical servo systems, inability to track multiple targets, and high volume, weight and power consumption

Inactive Publication Date: 2007-06-27
CHONGQING UNIV
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Problems solved by technology

[0003] The existing domestic monopulse tracking system uses a complex microwave monopulse feed source to form monopulse sum-difference beams in the radio frequency processing of the antenna to generate angular error information, and relies on the servo system to drive the turntable and mechanically move the antenna to track the target. The disadvantages are: : Cannot track multiple targets; there are complex and expensive electromechanical servo systems; hardware development and production are difficult; volume, weight, power consumption, and maintenance are complicated, etc.

Method used

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  • Single pulse multiple target tracking method and system

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specific Embodiment approach

[0025] For the passive monopulse tracking system, 5 beams need to be formed at the same time when receiving: one receiving sum beam; two azimuth difference beams offset symmetrically with the sum beam in azimuth; two in elevation, symmetrical with the sum beam up and down Offset pitch difference beam. These 5 beams are generated simultaneously by parallel operation. For the active monopulse tracking system, in addition to the five receiving beams, a transmitting beam is also formed. The specific implementation of the algorithm is as follows:

[0026] 1. The algorithm flow of the receiving and beamforming software module: the result of the process generates receiving and beamforming.

[0027]

[0028]

[0029] In order to align U(θ, , α, β) with the direction (Θ, Φ), the α = - 2 π λ sin Θ cos Φ , ...

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Abstract

Using data processing method, video terminal forms 'summation-difference beam of digital single pulse' and generates information of angular error. Based on information of angular error to change weight coefficient of digital single pulse beam, the method moves beam to track target. The digital track system of single pulse possesses capability for tracking multiple targets. Being formed from digital single pulse beam, software module can be utilized in superposition. Thus, how many pieces of software module are superposed dependent on how many targets needed following.

Description

[0001] Technical Field Radio Orientation and Precision Angle Tracking Background technique [0002] At present, the precise angle tracking of the target mainly adopts the monopulse tracking method. The tracking accuracy of the monopulse tracking system can reach 0.1 mil. At present, there is no tracking technology whose tracking accuracy exceeds monopulse tracking. [0003] The existing domestic monopulse tracking system uses a complex microwave monopulse feed source to form monopulse sum-difference beams in the radio frequency processing of the antenna to generate angular error information, and relies on the servo system to drive the turntable and mechanically move the antenna to track the target. The disadvantages are as follows: : It cannot track multiple targets; it has complex and expensive electromechanical servo system; it is difficult to develop and produce hardware; its volume, weight and power consumption are large, and its maintenance is complicated. [0004] Forei...

Claims

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Application Information

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IPC IPC(8): G01S13/66G01S13/68
Inventor 杨力生杨士中石为人王韬谭晓衡雷剑梅邓晓琴曹海林
Owner CHONGQING UNIV
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