Fixed radar netting cancellation type error registration device

Abstract

The invention discloses a fixed radar netting cancellation type error registration device, belonging to the field of radar data processing. The conventional fixed radar network error registration technology is proposed under the condition that a system error change mold is ascertained and under the promise of strong observability of the system error, so that the engineering practicability is poor. According to the device, the linear cancellation calculation is carried out on the measurement to a binary radar unit so as to obtain an objective state measurement equation which does not include a system error component; subsequently a kalman technology is utilized to carry out filtering estimation on the objective state measurement equation and an unbiased measurement equation through a plurality of binary radar units obtained by combining radars; and a feedback type fusion structure is adopted to obtain the fusion estimation of an objective state finally and realize the registration of the system error. According to the error registration device, the estimation of the system error is avoided but obtaining the objective state estimation; the complete separation of the system error estimation and the objective state estimation is realized; the device can be used in situations with system error weak observability and unascertained molds, so that the application range of the algorithm is expanded; and the algorithm engineering practicability is improved.

Description

1. Technical field [0001] The invention belongs to the field of error registration in multi-sensor network fusion data processing technology, and is suitable for a network system among fixed platform radars. 2. Background technology [0002] The multi-fixed radar networking system is widely used in the fields of early warning, air defense and reconnaissance, and is a typical multi-sensor system networking mode. In a multi-sensor networking system, how to effectively register and compensate the system errors of each sensor is one of the core key technologies. [0003] At present, the research on the error registration technology of fixed radar network has achieved certain research results, which can be mainly divided into two categories: systematic error estimation algorithms and systematic error and target state joint estimation algorithms, among which systematic error estimation algorithms The error registration is realized by estimating the system error and eliminating th...

AI Technical Summary

Problems solved by technology

However, in the occasions where the system error is weakly observable and the model is uncertain, which is often encountered in practical applications, it is difficult for the above two types of algorithms to achieve error registration.

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