Description: 两靖rayleigh衰落信道仿真。This m-file uses successive iterations of data to create an animated =
effect
％showing the results of passing an unmodulated carrier through a simple =
two
％path Rayleigh fading channel. The following formula and diagram
％illustrates the m-file operation. The animation shows, input(blue)
％and the output(red), the the phase shifts, gains, and attenuations
％of the output sine wave or carrier.-Two Jing Rayleigh fading channel simulation. This m-file uses successive iterations of data to create an animated = effect showing the results of passing an unmodulated carrier through a simple = two path Rayleigh fading channel. The following formula and diagram illustrates the m-file operation. The animation shows, input (blue) and the output (red), the the phase shifts, gains, and attenuations of the output sine wave or carrier. Platform: |
Size: 1024 |
Author:刘美 |
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Description: This paper examines the asymptotic (large sample) performance
of a family of non-data aided feedforward (NDA FF) nonlinear
least-squares (NLS) type carrier frequency estimators for burst-mode
phase shift keying (PSK) modulations transmitted through AWGN and
flat Ricean-fading channels. The asymptotic performance of these estimators
is established in closed-form expression and compared with the
modified Cram`er-Rao bound (MCRB). A best linear unbiased estimator
(BLUE), which exhibits the lowest asymptotic variance within the family
of NDA FF NLS-type estimators, is also proposed. Platform: |
Size: 164864 |
Author:吴大亨 |
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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: 数字锁相环，采用costas环的数字形式，实现跟踪载波相位，-Digital phase-locked loop, using the digital form costas loop to achieve carrier phase tracking, Platform: |
Size: 1024 |
Author:lily |
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Description: 对两径瑞利衰落信道进行matlab仿真。使用同一载波通过两条瑞利信道，并显示输出结果，包括相移等变化。-Path of the two Rayleigh fading channel for matlab simulation. Using the same carrier passed two Rayleigh channel, and display the output results, including phase-shifting and other changes. Platform: |
Size: 1024 |
Author:晓慧 |
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Description: 快速可靠的GPS (全球定位系统)系统仿真可对双频GPS 接收机的设计、接收算法的研究
提供有效的帮助。文中详细介绍了在MatLab/Simulink 环境下GPS 系统仿真平台构建的基本方法。
首先分析了GPS 系统的各个环节，说明了各模型在仿真中的实现方法；然后给出了完整的系统仿
真框图，并在此平台上实现了GPS L2 载波相位跟踪的仿真。结果表明该仿真平台有效、可靠-Fast and reliable GPS (Global Positioning System) system simulation of dual-frequency GPS receiver design, receiver algorithm to provide effective help. Text in detail in the MatLab/Simulink environment GPS system simulation platform to build the basic method. First, we analyze the various segments of GPS systems shows that the model in the realization of simulation methods and then given a complete system simulation block diagram, and on this platform realize the GPS L2 carrier phase tracking of the simulation. The results show that the simulation platform for effective, reliable Platform: |
Size: 233472 |
Author:luoluo |
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Description: 通信系统中载波相位恢复所需要用到的程序，用了多种方法实现载波恢复。-Communications system carrier phase recovery procedures are needed, using a variety of methods to achieve carrier recovery. Platform: |
Size: 11264 |
Author:包丹 |
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Description: 通信工程ＭＡＴＬＡＢ仿真
从Simulink的Sources中选择From Workspace，用鼠标将其拖到设计窗口中；
从Simulink的Sources中选择Sine Wave，用鼠标将其拖到设计窗口中；
从Simulink的Math中选择Product，用鼠标将其拖到设计窗口中；
从Simulink的Sinks中选择Scope，用鼠标将其拖到设计窗口中-Communication Engineering from the Simulink of MATLAB simulation Sources Select From Workspace, use the mouse to drag the design window Platform: |
Size: 8166400 |
Author:yangzhen |
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Description: 基于模糊逻辑控制的数字锁相环，用于通信系统中的载波恢复。Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.-Based on fuzzy logic control of digital phase-locked loop for the communication system in carrier recovery. Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system. Platform: |
Size: 33792 |
Author:gogomx |
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Description: 有关载波调制的数字传输的MATLAB程序---载波幅度、相位、频率调制。-Related to modulation of the digital transmission of the MATLAB program--- carrier amplitude, phase, frequency modulation. Platform: |
Size: 6144 |
Author:杨毅 |
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Description: 利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。-Use of matlab simulation software to achieve 8QAM modulation. In achieving the adoption of quadrature amplitude modulation means of a constellation in the I coordinates of the projection to the modulation of the amplitude-phase carrier, in the Q coordinates of the projection to the range of carrier orthogonal modulation, and then the sum of two AM signals is the required phase modulation signal. Platform: |
Size: 1024 |
Author:yanyan |
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Description: 经典载波跟踪环costas环simulink建模仿真，采用QPSK调制，包含上下变频以及三种不同鉴相方式。-Classic costas loop carrier tracking loop simulink modeling and simulation, using QPSK modulation, including the upper and lower frequency, as well as phase three different ways. Platform: |
Size: 13312 |
Author:李辉 |
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Description: This file contains a matlab file for blind carrier estimation which compute the phase and frequency offset of carrier due to Doppler shift. Platform: |
Size: 1024 |
Author:Abbas |
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Description: 鉴于载波相位观测量可提供高精度定位信息的特点,分析了在高动态环境获得载波相位观测量的三种可
能方法,对三种方法的估计精度和动态跟踪能力进行了比较. 提出了一种适合GPS 系统的高动态环境载波相位
测量方案.-View of the carrier phase measurements can provide accurate location information, analyzes the dynamic environment in the high carrier phase measurements to obtain three possible methods, three methods of estimation accuracy and dynamic tracking ability was compared. Presents a GPS system for high dynamic carrier phase measurement program. Platform: |
Size: 267264 |
Author:herui |
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Description: 本书讲述了全球定位系统GPS的基本原理和概念。具体包括GPS测量原理，GPS的结构和发展历史.GPS伪距定位和载波相位定位的原理GPS中使用的坐标系和时间系统,C/A码的实现原理及载波调制过程，GPS信号捕获和跟踪原理及实现.便携式GPS系统的设计与实现及常用芯片资料等。-This book describes the basic principles and concepts of the Global Positioning System (GPS). Including the structure and history of the development of the principle of GPS measurements, GPS the GPS pseudorange positioning and carrier phase positioning principle of GPS coordinate system and time system, the realization of the principle of the C/A code and carrier modulation process, GPS signal acquisition and tracking Design and Implementation of the principle and implementation of portable GPS systems and common chip data. Platform: |
Size: 4611072 |
Author:丁明亮 |
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Description: LAMBDA算法是用于求解载波相位模糊度的一种优秀算法(LAMBDA algorithm is an excellent algorithm for solving the ambiguity of carrier phase) Platform: |
Size: 10240 |
Author:等待花开
|
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