Description: 用Matlab实现的一个卫星自动导航模拟系统,包括GUI设计、模型设计与实现、三维动态仿真等功能,其中运用了两个自动导航的模型,程序里有对模型的简要说明,如果有需要详细说明的,可以和我联系。-using Matlab a simulated automatic navigation satellite systems, including GUI design, Model Design and Implementation, three-dimensional dynamic simulation, and other functions, using two automatic navigation model, there are procedures to model a brief description, if a need for detailed descriptions, and contact me. Platform: |
Size: 5020 |
Author:hubisong |
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Description: This m-file simulates MPSK (theoretical and simulated) with Gray coding
This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel).
-This m-file simulates MPSK (a theoretical nd simulated) with Gray coding This m-file simu lates MPSK (BPSK, QPSK, 8PSK) with theoretical and simulated results u sing Gray coding. Numerical examples of a satel lite link design are shown using QPSK and/or 8PS K when the bit rate (Rb) is greater than the chann el bandwidth Wc (Band-limited channel). Platform: |
Size: 7168 |
Author:王文 |
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Description: 用Matlab实现的一个卫星自动导航模拟系统,包括GUI设计、模型设计与实现、三维动态仿真等功能,其中运用了两个自动导航的模型,程序里有对模型的简要说明,如果有需要详细说明的,可以和我联系。-using Matlab a simulated automatic navigation satellite systems, including GUI design, Model Design and Implementation, three-dimensional dynamic simulation, and other functions, using two automatic navigation model, there are procedures to model a brief description, if a need for detailed descriptions, and contact me. Platform: |
Size: 5120 |
Author:hubisong |
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Description: This paper investigates the design of joint frequency
offset and carrier phase estimation of a multi-frequency time division
multiple access (MF-TDMA) demodulator that is applied to
a digital video broadcasting—return channel system via satellite
(DVB-RCS). The proposed joint estimation algorithm is based on
the interpolation technique for two correlation values in the frequency
and phase domains. This simple interpolation technique
can significantly improve frequency and phase resolution capabilities
of the proposed technique without increasing the number of
the correlation values. In addition, the overall block diagram of a
digital communications receiver for DVB-RCS is presented, which
was designed using the proposed estimation algorithms.
Index Terms—Carrier phase estimation, DVB-RCS, frequency
offset estimation, interpolation, joint estimation, MF-TDMA.-This paper investigates the design of joint frequencyoffset and carrier phase estimation of a multi-frequency time divisionmultiple access (MF-TDMA) demodulator that is applied toa digital video broadcasting-return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based onthe interpolation technique for two correlation values in the frequencyand phase domains. This simple interpolation techniquecan significantly improve frequency and phase resolution capabilitiesof the proposed technique without increasing the number ofthe correlation values. In addition, the overall block diagram of adigital communications receiver for DVB-RCS is presented, whichwas designed using the proposed estimation algorithms.Index Terms-Carrier phase estimation, DVB-RCS, frequencyoffset estimation, interpolation, joint estimation, MF-TDMA. Platform: |
Size: 500736 |
Author:吴大亨 |
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Description: This m-file simulates MPSK (BPSK,QPSK,8PSK)with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate(Rb)is greater than the channel bandwidth Wc (Band-limited channel). -This m-file simulates MPSK (BPSK, QPSK, 8PSK) with theoretical and simulated results using Gray coding. Numerical examples of a satellite link design are shown using QPSK and/or 8PSK when the bit rate (Rb) is greater than the channel bandwidth Wc (Band-limited channel). Platform: |
Size: 3072 |
Author:cmosbjt |
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Description: 本书采用软件接收机的观点,详细介绍了GPS接收机原理,涉及软件无线电和GPS两个热门领域。GPS接收机包括直接序列扩频信号接收技术和导航处理两个学科内容,涉及卫星星座及GPS信号的影响、信号捕获跟踪、导航电文解扩接收、伪距测量、定位和导航计算处理等内容。本书第2版增加了3章新的内容,主要涉及微弱信号和强干扰环境下,GPS接收机的处理方法。本书还附列了许多用Matlab编写的计算机程序,帮助阐明某些思想,一些可直接用于接收机的设计-This book uses software receiver s point of view, described in detail GPS receiver principle, relates to the software radio and GPS two hot areas. GPS receiver including direct sequence spread spectrum signal receiving technology processing and navigation in two disciplines, relates to the satellite constellation and the influence of GPS signal, signal acquisition and tracking, navigation message despreading reception, pseudo distance measuring, positioning and navigation calculation etc.. Book Second Edition adds 3 new section, mainly involving the weak signal and strong interference environment, GPS receiver processing method. The book also annexed many written using Matlab computer program, to help clarify some ideas, some can be used directly in the design of receiver Platform: |
Size: 6455296 |
Author:单边 |
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Description: 用matlab实现GPS原理和接收机设计中卫星速度和位置坐标的计算。可以输入任意信号发射时间计算。-Realization of GPS principle and the calculation of satellite velocity and position coordinates in the design of the receiver using matlab. Can enter any signal emission time calculation. Platform: |
Size: 2048 |
Author:lj |
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Description: Texture-Aware Fast Global Level Set Evolution-Due to its intrinsic advantages such as the ability to automatically handle complex shapes and topological changes, the level set method has been widely used in image segmentation. Nevertheless, in addition to be computational expensive, it has the limitation to very often lead to a local minimum because of the energy functional to be minimized is non-convex. In this work, we use the geometric active contours and the image thresholding frameworks to design a novel method for global image segmentation. The local lattice Boltzmann method is used to solve the level set equation. The proposed algorithm is therefore effective and highly parallelizable. Experimental results on satellite, natural and medical images demonstrate the effectiveness and the efficiency of the proposed method when implemented using an NVIDIA graphics processing units
The present Matlab code is the implementation of our work.
For using:
1- Open the main code (TAFGLSE.m),
2- Put the adress of the image you w Platform: |
Size: 529408 |
Author:许雄文 |
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