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Data filtering method based on projection variance discrimination and implementation device thereof

A data filtering and projection technology, applied in the direction of measuring devices, radio wave measuring systems, instruments, etc.

Active Publication Date: 2020-09-11
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a data filtering method based on projection variance discrimination and its implementation device to solve the problem of moving targets when the measurement position error is equivalent to the track distance Track Filter Estimation Problem for

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  • Data filtering method based on projection variance discrimination and implementation device thereof
  • Data filtering method based on projection variance discrimination and implementation device thereof
  • Data filtering method based on projection variance discrimination and implementation device thereof

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Embodiment Construction

[0037] In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and / or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure aspects of the various embodiments of the invention. Similarly, for purposes of explanation, specific quantities, materials and configurations are set forth in order to provide a thorough understanding of embodiments of the invention. However, the invention may be practiced without these specific details. Furthermore, it should be understood that the various embodiments shown in the drawings are illustrative representations and are not necessarily drawn to scale.

[0038] In this specification, reference to "one embodiment" or "the...

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Abstract

The invention provides a data filtering method based on projection variance discrimination and an implementation device thereof. The method is provided according to the difference of distribution variances of projections of measured moving target position data in different navigation directions, and comprises the steps of generating projection bases of all possible navigation directions of a moving target,projecting the measured two-dimensional position data on each projection base to realize dimension reduction,calculating a data variance after projection of the position data, and taking thedata variance as an estimated judgment condition,comparing all variances of the course projection data, selecting the projection base course with the maximum variance as course estimation of the moving target, and taking the projected target data as a preliminary estimation result of the track,and performing multi-point averaging on the preliminary estimation result, and taking the averaged flightpath estimation result as a final output result.

Description

technical field [0001] The invention relates to the technical field of data processing algorithms, in particular to a data filtering method based on projection variance discrimination and an implementation device thereof. Background technique [0002] Electronic Reconnaissance Satellite (Electronic Reconnaissance Satellite) is a reconnaissance satellite used for reconnaissance, intercepting electromagnetic signals sent by enemy radar, communication and weapon telemetry systems, and measuring the location of the signal source. Limited by satellite computing capabilities, reconnaissance satellites are only responsible for intercepting the original information of enemy targets. The original information is transmitted to the ground by satellites, and the final intelligence information is completed by ground computing equipment. [0003] Electronic reconnaissance satellites can be divided into radar intelligence reconnaissance satellites and communication intelligence reconnaissa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42
CPCG01S19/42
Inventor 常凯梁广王晓梅马菁涛吕松玲赵元瑞刘会杰
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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