Movable radar networking batch-processing type error register

A technology of error registration and radar networking, which is applied to instruments, radio wave measurement systems, etc., can solve problems that do not meet the requirements of the actual engineering background, and achieve the effect of high estimation accuracy and fast convergence speed

Inactive Publication Date: 2012-10-03
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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Problems solved by technology

In practice, the mobile radar network is mainly composed of cross-platform radars distributed over a large distance, mainly including measurement and attitude angle system errors. In the existing mobile radar network error registration technology, the assumption and construction of the algorithm None of the models conform to the requirements of the actual engineering background, and neither systematically and comprehensively model and solve the error registration problem of the mobile radar network

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  • Movable radar networking batch-processing type error register
  • Movable radar networking batch-processing type error register
  • Movable radar networking batch-processing type error register

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings. With reference to the accompanying drawings in the description, the specific implementation of the present invention is divided into the following steps:

[0015] (1) The networking system is composed of n three-dimensional mobile radars i (i=1, 2, ..., n), and the radar i has a distance error Azimuth error pitch angle error Yaw angle error pitch angle error and roll angle error And they are all constant additive errors. At time k, the coordinate of radar i in the Earth's Cartesian coordinate system is x is (k)=[x is (k),y is (k), z is (k)]′, the corresponding geographic coordinate is x isp (k)=[L i (k), B i (k), H i (k)]′, the attitude angle of the mobile carrier platform including error is . According to the transformation relationship between the carrier coordinate system, the NED coordinate system and the earth's Cartesian coordinate s...

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Abstract

The invention discloses a movable radar networking batch-processing type error register and belongs to the field of radar data processing. According to the conventional movable radar network error registration technology, supposed and constructed models do not meet actual engineering background requirements, the problem about movable radar network error registration is not systematically and comprehensively modeled and solved, and availability is low. The invention relates to a batch-processing algorithm for measurement. According to the algorithm, converged system error estimation is finally realized by recursively optimizing system errors along the maximum gradient of disturbance. The distance between radars is not limited, the priori knowledge of fixed reference points is not required to be utilized, and the error register is high in convergence speed and high in accuracy and has popularization and application values.

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 between mobile platform radars such as shipboard radars and airborne radars. 2. Background technology [0002] The mobile platform is an important carrier of radar in actual combat, and the mobile radar network 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, there are relatively few studies on the error registration technology of mobile radar networks. Helmick uses the Kalman filter technology to realize the real-time estimation of the maneuvering radar measurement and attitude angle error, but the algorithm is given when the distance between the maneuvering radars is assumed to be very close, and it is only applicable to the er...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
Inventor 何友崔亚奇熊伟王国宏董云龙王海鹏
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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