Because of the poor observability of Inertial Navigation System on stationary base, the estimation error of the azimuth will converge very slowly in initial alignment by means of Kalmari filtering, and making the time initial alignment is longer. In this paper, a fast estimation Method of the azimuth error is creatively proposed for the initial alignment of INS on stationary base. On the basis of the the fast convergence of the leveling error, the azimuth error can be directly calculated. By means of this fast initial alignment Method, the time of initial alignment is reduced greatly. The computer simulation results illustrate the efficiency of the Method.
標簽: observability Navigation estimation stationary
上傳時間: 2014-01-03
上傳用戶:wuyuying
The widespread use of embedded systems mandates the development of industrial software design Methods, i.e. computer-aided design and engineering of embedded applications using formal models (frameworks) and standardized prefabricated components, much in the same way as in other mature areas of engineering such as mechanical engineering and electronics. These guidelines have been used to develop Component-based Design of Software for Embedded Systems (COMDES). The paper gives an overview of the COMDES framework, followed by a presentation of a generic component types, such as function blocks, activities and function units. The execution of function units is discussed in the context of a newly developed execution model, i.e. timed-multitasking, which has been extended to distributed embedded systems.
標簽: development widespread industrial embedded
上傳時間: 2014-01-23
上傳用戶:z754970244
Whenever there is an application to write, breaking it up to small pieces is a great idea. The smallest piece of any application would probably be a data object, or a simple Bean in Java. Java Beans are simple Java classes that have a distinctive look and behavior. Their simplest purpose is to contain data and they accomplish this by having properties. Each property is actually a data-member containing/referencing the actual data and a couple of Methods, a getter Method and a setter Method. Thus, the simplest data-bean describing a person could be expressed as such:
標簽: small application Whenever breaking
上傳時間: 2016-11-07
上傳用戶:lingzhichao
This approach addresses two difficulties simultaneously: 1) the range limitation of mobile robot sensors and 2) the difficulty of detecting buildings in monocular aerial images. With the suggested Method building outlines can be detected faster than the mobile robot can explore the area by itself, giving the robot an ability to “see” around corners. At the same time, the approach can compensate for the absence of elevation data in segmentation of aerial images. Our experiments demonstrate that ground-level semantic information (wall estimates) allows to focus the segmentation of the aerial image to find buildings and produce a ground-level semantic map that covers a larger area than can be built using the onboard sensors.
標簽: simultaneously difficulties limitation addresses
上傳時間: 2014-06-11
上傳用戶:waitingfy
We propose a technique that allows a person to design a new photograph with substantially less effort. This paper presents a Method that generates a composite image when a user types in nouns, such as “boat” and “sand.” The artist can optionally design an intended image by specifying other constraints. Our algorithm formulates the constraints as queries to search an automatically annotated image database. The desired photograph, not a collage, is then synthesized using graph-cut optimization, optionally allowing for further user interaction to edit or choose among alternative generated photos. An implementation of our approach, shown in the associated video, demonstrates our contributions of (1) a Method for creating specific images with minimal human effort, and (2) a combined algorithm for automatically building an image library with semantic annotations from any photo collection.
標簽: substantially photograph technique propose
上傳時間: 2016-11-24
上傳用戶:三人用菜
Subspace Projection Based Blind Channel Order Estimation of MIMO Systems m file for a classical channel order estimation Method
標簽: Projection Estimation classical Subspace
上傳時間: 2016-11-26
上傳用戶:weixiao99
Range imaging offers an inexpensive and accurate means for digitizing the shape of three-dimensional objects. Because most objects self occlude, no single range image suffices to describe the entire object. We present a Method for combining a collection of range images into a single polygonal mesh that completely describes an object to the extent that it is visible from the outside.
標簽: three-dimensiona inexpensive digitizing accurate
上傳時間: 2016-11-29
上傳用戶:yxgi5
A stability analysis is presented for staggered schemes for the governing equations of compressible flow. The Method is based on Fourier analysis. The approximate nature of pressure-correction solution Methods is taken into account. 2001 IMACS. Published by Elsevier Science B.V. All rights reserved
標簽: compressible stability for equations
上傳時間: 2016-12-02
上傳用戶:yph853211
在模式識別應用中,用分支定界法(branch-and-board Method)進行特征的選擇。該程序在matlab環境下實現了該算法,以從六個特征中選擇兩個最佳特征為例
標簽: 模式識別
上傳時間: 2014-01-09
上傳用戶:nanshan
文件說明java模式,The CustomerFacade class offers a higher level business service in the form of the saveCustomerData Method. Instead of interacting with each of the subsystem components directly, the client AccountManager can make use of the higher level, more simplified interface offered by the CustomerFacade object to validate and save the input customer data.
上傳時間: 2016-12-10
上傳用戶:kernaling