scholarly journals Threat Assessment Method of Low Altitude Slow Small (LSS) Targets Based on Information Entropy and AHP

Entropy ◽  
2021 ◽  
Vol 23 (10) ◽  
pp. 1292
Author(s):  
Ruining Luo ◽  
Shucai Huang ◽  
Yan Zhao ◽  
Yafei Song
Keyword(s):  
Information Entropy ◽  
Threat Assessment ◽  
Assessment Method ◽  
Mission Planning ◽  
Experimental Simulation ◽  
Detection Capability ◽  
Analytic Hierarchy ◽  
Air Defense ◽  
Low Altitude ◽  
Hierarchy Process

In order to deal with the new threat of low altitude slow small (LSS) targets in air defense operations and provide support for LSS target interception decision, we propose a simple and reliable LSS target threat assessment method. Based on the detection capability of LSS targets and their threat characteristics, this paper proposes a threat evaluation factor and threat degree quantization function in line with the characteristics of LSS targets. LSS targets not only have the same threat characteristics as traditional air targets but also have the unique characteristics of flexible mobility and dynamic mission planning. Therefore, we use analytic hierarchy process (AHP) and information entropy to determine the subjective and objective threat factor weights of LSS targets and use the optimization model to combine them to obtain more reliable evaluation weights. Finally, the effectiveness and credibility of the proposed method are verified by experimental simulation.

A Fast Threat Assessment Model of Aerial Targets for Submarine

2014 ◽  
Vol 1070-1072 ◽  
pp. 2045-2050 ◽  
Author(s):  
Bo Wei Zhao ◽  
Fa Xing Lu ◽  
Bin Xie ◽  
Wei Xin Wang
Keyword(s):  
Threat Assessment ◽  
Weight Coefficient ◽  
Assessment Method ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Threat Level ◽  
Actual Operation ◽  
Hierarchy Process ◽  
Fast Dynamic ◽  
Assessment Factor

According to the actual operation type of submarine against aerial targets, this paper proposes a fast dynamic multi factor weighted threat assessment method, establishes the threat assessment factor which has the strongest influence and membership function. The multi factor assessment matrix is built on the base of analytic hierarchy process (AHP), the factor weight coefficient is obtained and then the model might judge the threat level of the target. The method is fast and practical, it will provide a reference for establishment of submarine to air missile threat assessment.

Assessment Reasearch about Agricultural Water Level

2011 ◽  
Vol 71-78 ◽  
pp. 2479-2482
Author(s):  
Ling Hua Wang ◽  
Rui Lian Wang ◽  
Pan Hua Ning
Keyword(s):  
Analytic Hierarchy Process ◽  
Water Level ◽  
Assessment Method ◽  
Agricultural Water ◽  
Analytic Hierarchy ◽  
Assessment Index ◽  
System Utilization ◽  
Assessment Index System ◽  
Hierarchy Process ◽  
Water Assessment

According to characteristics about the agricultural water, agricultural water level assessment index system was structured, and Analytic Hierarchy Process was used to determine the importance of each hierarchy in the system. The fuzzy scheme optimum method which was adopted to assess the agriculture system utilization water level. So the fuzzy problems about how to use mathematic method to analyse and deal with the agricultural water assessment were solved to a certain extent. The final result of the example indicated that fuzzy comprehension assessment method could reflect utilization water characteristic in different areas and also showed that the method is correct and practical.

scholarly journals Durability Assessment of Lightweight Cellular Concrete in Subgrade by the Method of Analytic Hierarchy Process Combined with Fuzzy Comprehensive Evaluation

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Xin Liu ◽  
Chengwei Ni ◽  
Liye Zhang ◽  
Ke Sheng ◽  
Baoning Hong
Keyword(s):  
Analytic Hierarchy Process ◽  
Influencing Factors ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Method ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Durability Assessment ◽  
Hierarchy Process ◽  
Cellular Concrete

The durability of lightweight cellular concrete (LCC) and the corresponding assessment method are studied in this paper to improve the utilization of LCC in subgrade construction engineering. The durability assessment method is established by combining the analytic hierarchy process (AHP) with fuzzy comprehensive evaluation (FCE). The main assessment processes are as follows. Firstly, based on the physical and mechanical properties of LCC, the influencing factors are selected in terms of preliminary design, construction technology, and operation and management after completion of construction. The grading standard of influencing factors is established as well. Secondly, a multilevel assessment model with targets level, criteria level, and indexes level is established. AHP determines the effective weight of the lower level relative to the upper level. The consistency check of the judgment matrix is conducted to prove the rationality of the distribution of influencing factors’ effect weight. Thirdly, the membership function which is suitable for each influencing factor is built to calculate the membership degree. Besides, the practicality and reliability of AHP combined with FCE are demonstrated through a practical engineering case, which is the third section of a highway in Guangdong Province, China.

System Target Damage Assessment Based on FAHP

2013 ◽  
Vol 321-324 ◽  
pp. 2367-2370
Author(s):  
Xiao Nan Zhang ◽  
Si Lang Du ◽  
Jun Feng Yang ◽  
Wei Cao
Keyword(s):  
Analytic Hierarchy Process ◽  
Damage Assessment ◽  
Target Function ◽  
Assessment Method ◽  
Analysis Method ◽  
Analytic Hierarchy ◽  
Base Damage ◽  
Hierarchy Analysis ◽  
Set Up ◽  
Hierarchy Process

It is found that the traditional BDA methods are not appropriate the system target BDA. A new method of the system target BDA is proposed in this paper. Firstly, based on Hierarchy Analysis Method (AHP), the system target function index system is set up. Secondly, the step of system target function damage assessment method is analyzed and proposed based on Fuzzy Analytic Hierarchy Process (FAHP). Finally, an example of air base damage assessment is given to verify the validity and availability of the proposed method.

scholarly journals Comparative Analysis and Development Exploration of Threat Assessment Methods for Warship Air Defense

2019 ◽  
Vol 291 ◽  
pp. 01006
Author(s):  
Pingbo Yu ◽  
Gaofeng Liu ◽  
Li Gong
Keyword(s):  
Comparative Research ◽  
Research Method ◽  
Fuzzy Theory ◽  
Reference Value ◽  
Threat Assessment ◽  
Uncertainty Assessment ◽  
Assessment Method ◽  
Assessment Methods ◽  
Paper Briefly ◽  
Air Defense

Warship’s air defense target threat assessment is an uncertainty issue. This paper briefly states the basic process and types of threat assessment methods for warship air defense, using comparative research method, the mechanism and characteristics of the certainty/uncertainty assessment method for target threat assessment are compared. It also analyzes the application of fuzzy theory, neural network and genetic fuzzy tree in target threat assessment, which has certain reference value for the research of warship air defense target threat assessment.

Comprehensive Assessment Method for Pile Construction Quality Based on Analytic Hierarchy Process

2013 ◽  
Vol 838-841 ◽  
pp. 245-249
Author(s):  
Yong Chun Cheng ◽  
Hong Bin Guo ◽  
Xian Qiang Wang ◽  
Yu Bo Jiao
Keyword(s):  
Analytic Hierarchy Process ◽  
Quality Assessment ◽  
Evaluation Method ◽  
Assessment Method ◽  
Comprehensive Assessment ◽  
Assessment Model ◽  
Geological Condition ◽  
Construction Quality ◽  
Analytic Hierarchy ◽  
Hierarchy Process

In this paper, a new comprehensive assessment method of pile construction quality based on analytic hierarchy process is proposed considering that the current specification is uncertain about quality assessment. This method establishes the comprehensive assessment index system of pile construction quality taking account of the influence of the pile velocity, pile length, geological condition, bridge importance level, pile defects and other parameters on pile construction quality assessment. It constructs pile construction quality assessment model through determining the weight of each index based on analytic hierarchy process to improve the evaluation method of pile construction quality. The good results achieved in practical engineering demonstrate that the proposed method possesses favorable accuracy.

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