Target guidance method and guidance system for passive sensor space observation network
A passive sensor and target-guided technology, applied to radio wave measurement systems, instruments, and measurement devices, can solve the problems of weak target search ability, short detection and tracking time of moving targets, etc., and achieve improved sampling sparsity and continuous improvement. The effect of stability and stability, simple design
Inactive Publication Date: 2017-07-07
SHENZHEN UNIV +1
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[0004] The technical problem to be solved by the present invention is to provide a target guidance method for a passive sensor space observation network for a single sensor in a passive sensor system, which has a weak ability to search for a target and a short detection and tracking time for a moving target. Guidance system, through the guidance of a single sensor, to improve the detection and tracking performance of the entire sensor system
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0034] The basic idea of the present invention is to firstly predict the location and time of the guided target, then calculate the predicted covariance matrix of the guided sensor observation vector, determine the search range, and finally determine the search strategy according to the search range.
[0035] Such as figure 1 As shown, the passive sensor-based target guidance method provided by the embodiment of the present invention includes the following steps:
[0036] Step S1: Predict the time T when the target enters the detection range of the guided sensor and the target state vector at this time T according to the position of the target at the current moment and the equation of motion;
[0037] Step S2: According to the predicted time T w...
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The invention relates to the technical field of target tracking and data fusion, and especially relates to a target guide method and system for a passive sensor space observation network. The method comprises the steps: firstly predicting the position and time of a target when the target is guided; secondly calculating a prediction covariance matrix of an observation vector of a guided sensor; determining a search range through the matrix; and finally generating a search strategy according to the search range, wherein the search strategy is used by an operator to carry out the targeted search of an airspace. The guide algorithm proposed by the invention is simple in design, can effectively achieve the guide of a passive sensor, improves the sampling sparsity of a sensor system, and improves the continuity and stability of detection and tracking.
Description
technical field [0001] The invention relates to the technical field of target tracking and data fusion, in particular to a target guidance method and guidance system for a passive sensor space observation network. Background technique [0002] For low-altitude target detection, microwave radar is the main means, and optical detector is an important supplement. Optical detection is a passive target detection method. Compared with active sensors such as radar, it has the advantages of low cost, low false alarm rate, suitable for large-scale deployment, and high battlefield survivability. In a networking system composed of optical sensors, although a single optical sensor has high detection accuracy, it only has azimuth and elevation angle information, but no distance information; at the same time, due to manual operation and the small field of view of the sensor, the sensor's ability to search for targets It is relatively weak, and at the same time, the detection range of a s...
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IPC IPC(8): G01S13/66
CPCG01S13/66
Inventor 李鹏飞黄敬雄黄建军李东伟王学青魏冬峰齐根华李志军黄萌康莉
Owner SHENZHEN UNIV