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Partitioning pairing and positioning method based on distance constraint

A technology of distance constraint and positioning method, which is applied in the field of radar communication, to achieve the effect of reducing the probability of pairing errors, reducing the amount of calculation, and improving the success rate of pairing

Active Publication Date: 2020-05-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method to realize multiple target distances of distributed MIMO radar in view of the deficiencies of the existing target pairing and distance correlation methods, such as the defects in scenarios where the number of targets is large and the detection range is large. Target pairing method for separately associating information

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  • Partitioning pairing and positioning method based on distance constraint
  • Partitioning pairing and positioning method based on distance constraint
  • Partitioning pairing and positioning method based on distance constraint

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Embodiment Construction

[0022] For a better description, first define the following:

[0023] Self-path: self-sending and self-receiving path, the i-th platform of the MIMO radar transmits signals, and the j-th platforms receive signals, i=j.

[0024] Other paths: Spontaneous sending and other receiving paths, the i-th platform of the MIMO radar transmits signals, and the j-th platforms receive signals, i≠j.

[0025] Pairing block: The distance range of a single participating pairing divided according to the size of the entire distance domain.

[0026] Protection block: the maximum target distribution range obtained by using distance constraints.

[0027] Pairing domain: It is composed of a pairing block and its adjacent protection blocks, which is the actual range when pairing the pairing blocks.

[0028] Pairing point: the detected target point to be paired.

[0029] Pairing unit: A unit that makes up a pairing block.

[0030] Protection unit: A unit that makes up a protection block.

[0031] ...

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Abstract

The invention provides a distributed MIMO radar target pairing and positioning method based on distance constraint. The method comprises the steps of pairing block division and pairing domain determination, target pairing of N pairing domains one by one and outputting of distance combinations of all targets, target deduplication and target positioning. On one hand, the number of targets in a pairing domain of single pairing after block pairing is reduced, the overall operand is reduced, and due to the fact that the pairing range is small, the probability of pairing errors can be effectively reduced under the condition that the number of the targets is large, and the pairing success rate is increased; and (1) already-path constraint and (2) already-path and other-path combined constraint are provided, two constraint conditions which can be met at the same time are needed, the constraint relation is strong, the probability of pairing errors is small, and the pairing success rate is increased from the other aspect.

Description

technical field [0001] The invention relates to radar communication technology, in particular to radar target pairing and positioning technology. Background technique [0002] Distributed MIMO radar is a multi-station and multi-path radar. Compared with traditional phased array radar, it can take advantage of multi-angle detection and obtain space diversity gain, which can effectively improve detection performance, which means that the enemy detects our own The range of action of the signal is likely to be smaller than our detection range, so relatively speaking, it has better anti-intercept performance and battlefield survivability, which is a new direction for the development of radar technology. [0003] In the radar networking system, it is necessary to solve the problem of target information association, that is, the problem of target matching, and realize the track processing of different targets. The existing public literature mainly uses the track correlation method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S13/06G01S7/41
CPCG01S13/88G01S13/06G01S7/41Y02D30/70
Inventor 程子杨唐凌云杨倩飞何子述李军姚宏达龙杰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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