Measurement storage-based track initiation method

A track initiation and measurement technology, applied in radar signal processing, phased array radar multi-target tracking, passive tracking, and can solve problems such as track initiation

Active Publication Date: 2016-12-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
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Problems solved by technology

[0005] The present invention improves and designs a track initiation method based on measurement and storage in view of the inadequacies of the background technology, so as to achieve faster track initiation spe

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Embodiment Construction

[0037] The present invention mainly adopts the method of computer simulation for verification, and all steps and conclusions are verified correctly on MATLAB-R2013b. The specific implementation steps are as follows:

[0038] Step 1. Initialize relevant parameters. The initialization parameters mainly include: data correlation wave gate size Velocity gate size (v min ,v max )=(10m / s,15m / s), time frame k=1, unassociated measurement matrix

[0039] Step 2. Use the constant false alarm detector to process the radar echo information to obtain the measurement information set Wherein, n is the number of measurements detected;

[0040] Step 3. If k=1, set all measurements z 1 ∈ Z 1 save to matrix , and let k=k+1 and jump to step 2;

[0041] Step 4. If there is no track at the current moment, all measured z k ∈ Z k save to matrix , and skip to step 7;

[0042] Step 5, data association between the measurement of the kth frame and the track:

[0043] 5.1. Predict the s...

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Abstract

The invention discloses a measurement storage-based track initiation method. The method is applied to target tracking of narrow-transmitting multi-receiving track-while-scan radar system and a passive tracking system in actual scenes. According to existing tracking algorithms, most algorithms assume that targets can be observed continuously and the measurement information of different targets are synchronous. According to the method of the invention, a condition that time intervals when a target is observed by a track-while-scan radar system is inconstant is considered; and historical measurement information is fully utilized, higher track initiation speed and successful tracking probability can be realized. With the measurement storage-based track initiation method of the invention adopted, track initiation problems of a centralized tracking system and a passive tracking system in multi-sensor asynchronous communication can be solved. The method has the advantages of full utilization historical information, simplicity in implementation and higher successful track probability, and can assist in effectively solving track initiation problems under a condition that the measurement information of different targets is asynchronous.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, in particular to the technical field of phased array radar multi-target tracking and the field of passive tracking. Background technique [0002] Phased array radar is an advanced target detection and positioning device that replaces mechanical scanning with electronic scanning. Due to the ability of beam agility, phased array radar has the characteristics of flexible multi-beam pointing and dwell time, controllable space power allocation and time resource allocation, etc. These characteristics determine that phased array radar can realize multi-task and multi-function , and have high measurement accuracy and resolution. [0003] Due to the limited time and energy resources of a radar system, in order to realize the search and tracking of more batches of targets, it is necessary to improve the utilization of time and energy resources of the phased array radar system as much as po...

Claims

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Application Information

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IPC IPC(8): G01S13/72G01S13/58
CPCG01S13/58G01S13/726
Inventor 易伟陈方园姜萌方梓成王佰录李溯琪崔国龙孔令讲
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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