Optimized configuration method for PRN (Passive Radar Network) reception station based on K coverage

Abstract

The invention discloses an optimized configuration method for PRN reception station based on K coverage. The optimized configuration method comprises spreading loss prediction and optimized configuration. Based on known information, a radio wave spreading prediction model is utilized to predict the spreading loss in a bistatic path. The optimized configuration method, in which the K-order coverage rate is used as an evaluation index, comprises the following steps that a) k-order Voronoi diagram division is carried out on an area according to configuration of the present reception station; b) optimal configuration in the reception station in each sub division is solved to form a Voronoi solution; c) based on the Voronoic solution, a neighborhood search method is used to obtain a better solution in the neighborhood, and a neighborhood search solution is formed; and d) the neighborhood search solution is evaluated, if the neighborhood search solution is not optimal, the steps a, b and c are repeated based on the present neighborhood solution, and otherwise, iteration is stopped, and an optimal configuration result is output. The method can be used to handle the problem in optimized configuration of the PRN reception station, the complexity of optimum searching calculation is greatly reduced by a heuristic search method, optimal configuration of the reception station can be obtained rapidly, and the method is helpful for practical application of passive radars.

Description

technical field [0001] The invention belongs to the technical field of radar networking, and in particular relates to a method for optimal configuration of receiving stations in an external source radar network based on K coverage. Background technique [0002] In recent years, exogenous radar using a third-party radiation source as an illumination source has gradually become a research hotspot, which has the advantages of environmental protection, good concealment, and strong anti-interference ability. However, while the signal processing technology of exogenous radar is gradually improving, the actual application performance of exogenous radar is unstable and often cannot reach or approach the ideal performance. There are two main reasons for this: 1. The complex electromagnetic environment affects the actual performance of signal processing Evaluation; 2. Improper station configuration may seriously affect the actual work of the radar system, such as strong direct waves m...

AI Technical Summary

Problems solved by technology

PRN can expand the application range of external source radar, but at the same time, the reasonable configuration of multiple receiving stations and the signal processing of PRN will become more complicated. One of the important problems is the problem of association ambiguity (including the problem of correlation between transmitting stations and targets and the relationship between the target and the measurement value of the receiving station)

Images