scholarly journals Combined Geometric Positioning and Performance Analysis of Multi-Resolution Optical Imageries from Satellite and Aerial Platforms Based on Weighted RFM Bundle Adjustment

2021 ◽  
Vol 13 (4) ◽  
pp. 620
Author(s):  
Wenping Song ◽  
Shijie Liu ◽  
Xiaohua Tong ◽  
Changling Niu ◽  
Zhen Ye ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Satellite Imagery ◽  
Bundle Adjustment ◽  
Phase Correlation ◽  
Engineering Applications ◽  
Positioning Accuracy ◽  
Optical Images ◽  
Practical Engineering ◽  
Aerial Platforms ◽  
And Performance

Combined geometric positioning using images with different resolutions and imaging sensors is being increasingly widely utilized in practical engineering applications. In this work, we attempt to perform the combined geometric positioning and performance analysis of multi-resolution optical images from satellite and aerial platforms based on weighted rational function model (RFM) bundle adjustment without using ground control points (GCPs). Firstly, we introduced an integrated image matching method combining least squares and phase correlation. Next, for bundle adjustment, a combined model of the geometric positioning based on weighted RFM bundle adjustment was derived, and a method for weight determination was given to make the weights of all image points variable. Finally, we conducted experiments using a case study in Shanghai with ZiYuan-3 (ZY-3) satellite imagery, GeoEye-1 satellite imagery, and Digital Mapping Camera (DMC) aerial imagery to validate the effectiveness of the proposed weighted method, and to investigate the positioning accuracy by using different combination scenarios of multi-resolution heterogeneous images. The experimental results indicate that the proposed weighted method is effective, and the positioning accuracy of different combination scenarios can give a good reference for the combined geometric positioning of multi-stereo heterogeneous images in future practical engineering applications.

Precision Analysis and Simulation of Locating the Single Source Based on Double-UAVs

2013 ◽  
Vol 347-350 ◽  
pp. 3769-3773
Author(s):  
Qiu Ju Zhang ◽  
Shao Rong Xie ◽  
Jun Luo ◽  
Yan Peng ◽  
Zhou Hao Ye
Keyword(s):  
Performance Analysis ◽  
Direction Finding ◽  
Geometric Method ◽  
Single Source ◽  
Precision Analysis ◽  
Positioning Accuracy ◽  
Great Achievement ◽  
Simulation Results ◽  
And Performance ◽  
Passive Localization

The passive direction finding cross localization has got great achievement and has been widely used in military and civilian fields. Currently, the researches on passive localization have focused on AOA, TDOA and FDOA. In our system, the passive direction finding cross localization is more effective and useful. We use two UAVs to locate a single source. We apply the geometric method to analysis positioning accuracy. In order to study the performance of a passive direction finding cross localization, MATLAB is used to simulate the result. Finally, the simulation results and performance analysis provide operational technical principle for such a system.

Research on Geometric Layout of Pseudo-Satellite in the Small Airport

2014 ◽  
Vol 651-653 ◽  
pp. 495-498
Author(s):  
Jun Hong Feng ◽  
Li Deng
Keyword(s):  
Complex Terrain ◽  
Satellite Navigation ◽  
Operating Costs ◽  
Satellite Network ◽  
Engineering Applications ◽  
Positioning Accuracy ◽  
Dilution Of Precision ◽  
Navigation Signal ◽  
Practical Engineering ◽  
Geometric Layout

Because complex terrain conditions, the small airport satellite navigation signal being blocked, while reducing the positioning accuracy of the approach and landing segment, but also increase the operating costs of the small airport. This paper through independent pseudo-satellite network, from PDOP (Position Dilution of Precision) and VDOP (Vertical Dilution of Precision) studied several layout of airport pseudo-satellites. Through simulation show that the geometric layout of the pseudo-satellite can improve positioning accuracy of approach and landing segment in the small airport and reduce the DOPs, ​​provide reference for practical engineering applications.

TINGKAT KEPUASAN PESERTA LELANG TERHADAP PELAYANAN TEMPAT PELELANGAN IKAN (TPI) MORODEMAK

2019 ◽  
Vol 13 (2) ◽  
pp. 122-130
Author(s):  
Dian ayunita Nugraheni nurmala Dewi
Keyword(s):  
Performance Analysis ◽  
Service Quality ◽  
Gap Analysis ◽  
Quality Measurement ◽  
Service Satisfaction ◽  
Importance Value ◽  
Auction House ◽  
Participant Satisfaction ◽  
And Performance ◽  
Descriptive Method

Objectives of this study were analyze fish auction participant satisfaction to auction services in TPI Morodemak, analyze attributes effect, services that fit to service quality measurement, and analyzed fish auction participants perception to performance and importance for fish auction house Morodemak services. Used descriptive method and purposive sampling with 49 respondents consists of commercial fishmongers, traditional fishmongers, purse seine owners, and boat lift net owners as fish auction participant. Satisfication measurement used Customer Satisfication Index (CSI), Importance and Performance Analysis (IPA) and gap analysis. Results from this study were value CSI 20% (0.2) indicate the auction participants dissatisfied with the services provided, IPA show there are four attributes should be develop, two elements have not been completed based on measurement requirements of service satisfaction, gap value average -0.05 means the auction participants were not satisfied with the performance of TPI services because the performance value was lower than the importance value.

TANGGAPAN WAJIB PAJAK TERHADAP KUALITAS PELAYANAN DILIHAT DARI TINGKAT KEPENTINGAN DAN KINERJA PADA KANTOR PELAYANAN PAJAK KOTA BOGOR

2018 ◽  
Vol 2 (01) ◽  
pp. 14
Author(s):  
Eddy Supardi
Keyword(s):  
Performance Analysis ◽  
Service Quality ◽  
Descriptive Analysis ◽  
Good Work ◽  
Satisfaction Level ◽  
Quality Service ◽  
Analysis Method ◽  
And Performance ◽  
Personal Tax

The Tax Payer obidience in fulfiling their taxation obligation will be influenced a lot by the satisfaction level toward the service fiscus. The aim of this observation is to know the response of Tax Payer toward service quality through importance and performance. The population which become the object of this observation is the personal Tax Payer registered in Bogor Tax Service Office and the number of respondents taken as the sample are 100 respondents with Slovin formula. The analysis method used is descriptive analysis and importance-performance analysis.   The result of this observation will be able to be used as one of the input to Bogor Tax Service Office in improving the quality service and for the following observation, especially those who take the same object as the observation in order to improve the quality service to the Tax Payer based on the service of its working way which is felt less. Otherwise it is important for The Tax Payer, maintaining the good work or balancing the service quality based on the working way which is evaluated less important by The Taxe Payer, but has been done reasonably well or very well by The Service Office

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