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2下载:
二阶锁相环的基本MATLAB仿真模型
说明了二阶环对频率阶跃的有效跟踪-second-order PLL basic MATLAB simulation model shows the second part of the effective frequency tracking Step
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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.
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本程序是用matlab程序语言编写的costas环仿真程序,并对于模拟的costas环的性能进行了分析,costas环主要用于载波同步,本设计实现了对于载波频率跟踪的实现,并且给出图形对比-The program is written in matlab program costas loop simulation program, and the simulated performance of costas loop analysis, costas loop is mainly used
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实现gps卫星的跟踪功能。载波跟踪环采用锁频环辅助下的锁相环,码跟踪环采用延迟锁相环。-Gps satellite tracking to achieve. Carrier tracking loop using the aid of frequency-locked loop PLL, code tracking loop using delay locked loop.
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GPS 定位 校时 G591B G591模块产品定义书
1.GPS芯片 :基于 JRC第九代单芯片SH319方案
2.卫星信道 :88通道, (66个捕获通道,22个追踪通道)
3.频率 :L1, 1.57542 GHz, C/A 码
4.启动时间 :<1.5s(热启),<34s(温启),<35s(冷启)
5.功耗 :38mW typical@tracking
6.GPS精度 :<2.5m Position Accuracy; 0.
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gps单频软件接收机跟踪程序,用c语言在vc++6.0开发环境下写成,并且对载波产生和码产生使用x87的浮点汇编指令集提高速度。-single-frequency software receiver gps tracking program, using c language in vc++6.0 development environment, written and produced for use of carrier generation and code compilation of
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7.1 概述
7.2 边缘检测
7.3 边缘跟踪
4.1 概述
4.2 空域变换增强
4.3 空域滤波增强
4.4 频域增强
4.5 彩色增强
-7.2 Edge Detection 7.1 overview 7.3 Edge tracking 4.1 4.2 Enhanced 4.3 airspace airspace transform filter to enhance the frequency domain 4.4 Enhanced Color Enha
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RFID is an area of automatic identifi cation that is gaining
momentum and is considered by some to emerge as one of
the most pervasive computing technologies in history. In its
simplest form, RFID is a similar concept to bar coding. It is
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OFDM 频率跟踪算法,用于DVB-H, CMMB 和OFDM demoduator 设计-Frequency tracking algorithm for DVB-H, design for OFDM demodualtor
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接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构,以及定时估计,频偏估计,剩余误差跟踪的算法可参考算法说明文档。-Receiver used algorithms and program flow with the sender sends the frame structure of OFDM symbols are. Concrete frame structure and timing estimates, frequency offset estimati
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在机动目标跟踪中,机动目标模型是机动目标跟踪的基本要素之一,一般希望机动目标模型能准确表征目标机动时的各种运动状态。比较常用的模型有匀速运动(CV)模型、匀加速运动(CA) 模型、时间相关模型(Singer)和机动目标“当前”统计模型。上述模型均采用机动频率表征目标的机动情况。在应用当中,通常采用固定的机动频率,这就表示机动目标的机动时间是一定的,而实际上机动目标的机动时间是不断变化的,也就是说机动频率是不断变化的,采用固定机动频率必然会带来误差。采样周期在0.5—2S时,机动频率越小跟踪精度越
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使用costas环实现载波同步,绘制出了载波频率跟踪曲线-Achieve carrier synchronization using the costas loop, draw the curve of the carrier frequency tracking
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用泰勒级数展开的形式表示高动态的载波相位参数, 给出了对高动态载体和各阶频率参数
估计的四阶加权扩展卡尔漫滤波器(EKF) , 以及实现高动态跟踪滤波器必须的状态转移矩阵和动
态噪声协方差矩阵. 计算机模拟实验分析了对载波相位和各阶频率的跟踪结果.-Taylor series expansion with the form that the carrier phase high-dynamic parameters, given the high-order dynamic freq
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adaptive beamformer using an FFT filter bank with/without DOA estimation and tracking
(frequency domain version of Frost beamformer)
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针对频率周期振荡的振动系统讨论自适应控制问题,在频率跟踪的基础上对频率变化的振动响应进行控
制,给出相应的估计、滤波与控制方法。首先在子空间辨识原理的基础上,通过测量信号自相关序列的递推运算获得信号
频率 然后根据估计频率实时调整带通滤波器的中心频率,使其跟踪信号频率,实现信号分量的跟踪滤波 最后在LMS方
法的基础上构造对信号分量进行控制的自适应控制器。-The adaptive vibration control of systems excited by forces of p
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大功率高Q值超声振动系统频率自动跟踪.pdf-High-power ultrasonic vibration system with high Q value of the automatic frequency tracking. Pdf
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锁频环又称为自动频率控制(AFC)环,其利用反馈回路对输入频率变化进行调整,最后达到对频率的跟踪,广泛应用于雷达,卫星导航等领域对多普勒频率的跟踪。-Locked loop, also known as automatic frequency control (AFC) loop, the use of feedback loop to adjust the input frequency changes, and finally achieve frequency tracking is wi
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AVR实现SPWM正弦波输出,频率跟踪,相位跟踪,最大功率点跟踪-AVR SPWM sine wave achieve output, frequency tracking, phase tracking, the maximum power point tracking
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这是一些关于旋转机械的频率追踪的参考资料,希望对大家有所帮助。-This is some of the rotating machinery frequency tracking reference, and they hope to help everyone.
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频率测量vi,包括ESTI、比例法、多项式逼近法、多周期平均计数法、仿真信号源、能量矩平衡、频率跟踪、三点法-Frequency measurement vi, including ESTI, ratio method, polynomial approximation method, average more cycle counting method, the simulation signal source, energy moment balance, frequency trackin
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