INS/USBL integrated navigation system performance evaluation method based on nonlinear FCE

An integrated navigation system and a technology of the navigation system are applied in the field of performance evaluation of the INS/USBL integrated navigation system based on nonlinear FCE, and can solve the problems of the subjectivity of the performance of the integrated navigation system.

Active Publication Date: 2019-06-25
HARBIN ENG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of subjectivity in evaluating the performance of integrated navigation systems by traditional performance evaluation methods, and propose a nonlinear FCE method for INS / USBL integrated navigation systems, which can synthesize subjective weight vectors and objective weight vectors, and use the design Non-linear fuzzy operator, more scientific evaluation of INS / USBL integrated navigation system

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  • INS/USBL integrated navigation system performance evaluation method based on nonlinear FCE
  • INS/USBL integrated navigation system performance evaluation method based on nonlinear FCE
  • INS/USBL integrated navigation system performance evaluation method based on nonlinear FCE

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[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] For the convenience of description, the relevant technical terms appearing in the specific implementation are explained first:

[0047] FCE (Fuzzy comprehensive evaluation): fuzzy comprehensive evaluation;

[0048] INS (inertial navigation system): inertial navigation system;

[0049] USBL (Ultra Short Base Line): ultra-short baseline positioning system;

[0050] ACKF (Adaptive Cubature Kalman Filters): adaptive volumetric Kalman filter;

[0051] AHP (Analytic hierarchy process): Analytic Hierarchy Process;

[0052] In this example, if figure 1 Shown, a kind of INS / USBL integrated navigation system performance evaluation method based on nonlinear FCE of the present invention, concrete steps are as follows:

[0053] (1) Establish the INS / USBL integrated navigation system index system and comment level

[0054] Analyze the characteristics of the INS / USBL int...

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Abstract

The invention belongs to the field of satellite navigation, and particularly relates to an INS / USBL integrated navigation system performance evaluation method based on nonlinear FCE, which comprises the following steps of: establishing an INS / USBL integrated navigation system index system and a comment level; calculating an evaluation matrix based on a membership function; calculating a combined navigation system weight vector C; comprehensive evaluation and normalization are carried out; an evaluation level interval quantization value is calculated. According to the invention, performance evaluation is carried out on an INS / USBL integrated navigation system by using nonlinear FCE. According to the method, an INS / USBL integrated navigation system is designed, a three-level index system ofthe INS / USBL integrated navigation system is designed, the performance of the integrated navigation system is evaluated from device-level errors, a nonlinear FCE based on a nonlinear fuzzy operator isdesigned, and the method can scientifically and quantitatively evaluate the INS / USBL integrated navigation system.

Description

technical field [0001] The invention belongs to the field of satellite navigation, in particular to a method for evaluating the performance of an INS / USBL integrated navigation system based on nonlinear FCE. Background technique [0002] INS / USBL integrated navigation system has been widely used in military and civilian fields because it can integrate the advantages of INS and USBL, and finally can improve navigation accuracy and adaptability. However, due to the differences in the sensor performance, combination mode and filter of each navigation subsystem, the performance of the integrated navigation system will be different. Therefore, from the perspective of system verification, the performance evaluation of the integrated navigation system and the quantitative determination of the influence of various factors on the accuracy of system information fusion will provide technical support for system verification and optimization. [0003] At present, the research on the per...

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Application Information

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IPC IPC(8): G06Q10/06
CPCY02D10/00
Inventor 程建华董铭涛董萍康瑛瑶孙湘钰刘萍蔡静
Owner HARBIN ENG UNIV
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