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Split type guided exploration mode and precision analysis method

A precision analysis, split technology, applied in guidance methods, weapon accessories, offensive equipment, etc.

Active Publication Date: 2019-10-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: in the prior art, the research on the detection mode mainly focuses on the measurement of the target distance and azimuth angle information, and cannot proceed from the perspective of simultaneously ensuring the accurate measurement of the relative distance of the target and the angular velocity information of the line of sight. Guided Probe Mode Analysis Issues

Method used

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  • Split type guided exploration mode and precision analysis method
  • Split type guided exploration mode and precision analysis method
  • Split type guided exploration mode and precision analysis method

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specific Embodiment approach 1

[0066] Specific implementation mode one: refer to figure 1 Specifically explaining this embodiment, the detection mode and accuracy analysis method of split guidance described in this embodiment includes the following steps:

[0067] Step 1: According to the triangular configuration relationship between the tracker, the observer and the target in the split guidance scenario, deduce the indirect solution equation of the tracker guidance information and its solution error sensitivity;

[0068] Step 2: Quantitatively analyze the reachable detection configuration according to the separation and interception characteristics of the split guidance;

[0069] Step 3: According to the existing space detection technology, propose several detection modes with potential application value;

[0070] Step 4: According to the analysis results of the solution error sensitivity and the reachable detection configuration, the detection accuracy analysis method of split guidance is obtained, and t...

specific Embodiment approach 2

[0071] Specific embodiment 2: This embodiment is a further description of the specific embodiment 1. The difference between this embodiment and the specific embodiment 1 is that the guidance information in the step 1 includes the relative distance information between the tracker and the target. r ct and inertial line-of-sight angular velocity information The indirect calculation method of guidance information is as follows:

[0072] For the "side-angle-side" triangle construction method, if r ot 、r co and the observer-centered configuration angle (π-q ot -q co ) is given, the triangular relationship between the tracker, the observer and the target can be uniquely determined. According to the law of cosines, it can be deduced that r ct The first solution equation for is expressed as:

[0073]

[0074] Among them, r ot is the relative distance between the observer and the target; q ot is the inertial sight angle of the target relative to the tracker; r co is the re...

specific Embodiment approach 3

[0090] Specific embodiment three: This embodiment is a further description of the specific embodiment two. The difference between this embodiment and the specific embodiment two is that the error sensitivity of the guidance information in the step one is:

[0091] Analyzing the solution error sensitivity of the guidance information, and on this basis, considering the combination separation and target interception constraints of the split guidance, analyzing the reachable detection configuration of the split guidance; analyzing the tracker guidance information r ct Analysis of the solution error sensitivity. According to the tracker guidance information r ct The first solution equation of , get r through theoretical derivation ct The solution error sensitivity expression of can be expressed as:

[0092]

[0093] In the formula, r is the guidance information of the tracker in the first solution mode ct Resolution error sensitivity for each measurement message. It can be...

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Abstract

The invention discloses a split type guided exploration mode and a precision analysis method and relates to the technical filed of split type guided space exploration. The problems that in the prior art, a split type guided exploration mode cannot be analyzed from the angle that target relative distance and sight angular speed information precise measurement are ensured simultaneously can be solved. The precision analysis method comprises the steps that firstly, according to the triangle configuration relation of a tracker, an observer and a target at a split type guided scene, an indirect calculation equation and calculation error sensitivity thereof of tracker guided information are derived; secondly, according to split type guided separation and interception characteristics, quantitative analysis is conducted on reachable exploration configuration; thirdly, according to existing space exploration technology, a plurality of exploration modes are provided; and fourthly, according to the calculation error sensitivity and the analysis result of the reachable exploration configuration, a split type guided exploration precision analysis method is obtained, contrastive analysis is conducted on exploration performance of different exploration modes, and the exploration mode suitable for a space non-cooperative guided task is obtained.

Description

technical field [0001] The invention relates to the technical field of split-type guidance space detection, in particular to a detection mode and precision analysis method of split-type guidance. Background technique [0002] At present, a variety of different detection modes have been proposed for the indirect measurement of target motion information at home and abroad. Among them, the detection mode based on dual-line-of-sight measurement has been widely used in many guidance scenarios, effectively solving the problem of obtaining relative distance information between the aircraft and the target; in addition, literature (A.N.Bishop, B.Fidan, B.D.O.Anderson, etal.Optimality Analysis of Sensortarget LocalizationGeometries[J].Automatica,2010,46(3):479–492) and literature (S.Zhao, B.M.Chen, T.H.Lee.Optimal Deployment of Mobile Sensors for Target Tracking in 2d and 3dSpaces[J].IEEE / CAA journal of automatica sinica,2014,1(1):24–30.) proposed a joint target detection method usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41G3/00
CPCF41G3/00
Inventor 李兴龙姚郁贺风华郑天宇
Owner HARBIN INST OF TECH
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