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: 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
seen as a means of enhancing data processes and is comple-
mentary to existing technologies. It is a proven technology
that has been in use since the 1970s.-Amore complex description is an electromagnetic proxim-
ity identifi cation and data transaction system. Using ‘‘RFID
tags’’ on objects or assets, and ‘‘readers’’ to gather the tag in-
formation, RFID represents an improvement over bar codes in
terms of non-optical proximity communication, information
density, and two-way communication ability. Operational
RFID systems involve tags and readers interactingwith objects
[assets] and database systems to provide an information and/
or operational function.
RFID is used for a wide variety of applications ranging from
the familiar building access control proximity cards to supply
chain tracking, toll collection, vehicle parking access control,
retail stock management, ski lift access, tracking library
books, theft prevention, vehicle immobiliser systems and rail-
way rolling stock identifi cation and movement tracking. Platform: |
Size: 198656 |
Author:胡利建 |
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Description: A Matlab script to simulate a Phase-Locked Loop (PLL). This is a type II PLL ie it has two integrators (one of these is the VCO itself).
It is simulated with an FM (frequency modulation) input. The output is the demodulated baseband signal Platform: |
Size: 1024 |
Author:Tom_M |
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Description: 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 estimation, the remaining error tracking algorithm can reference algorithm documentation. Platform: |
Size: 406528 |
Author:keven |
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Description: 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 frequency carrier and the fourth-order parameter estimation Carl diffuse filter weighted extended (EKF), and to achieve the necessary high dynamic tracking filter state transition matrix and dynamic noise covariance matrix. The computer simulation analysis of carrier phase and frequency tracking results of each order. Platform: |
Size: 256000 |
Author:herui |
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Description: adaptive beamformer using an FFT filter bank with/without DOA estimation and tracking
(frequency domain version of Frost beamformer) Platform: |
Size: 4096 |
Author:terryshi |
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Description: 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 periodically varying frequencieswas dis-
cussed. The presented adaptive controlwas realized on the basis of tracking of time-varying frequencies and amethod for
online frequency estimation, filtering and controlwas proposed. Based on the principle of subspace identification, the
time-varying frequencieswere estimated from the recursively computed autocorrelation ofmeasured signals.
Platform: |
Size: 401408 |
Author:黄松 |
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Description: 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 for carrier synchronization, the design achieved the realization of the carrier frequency tracking, and gives graphic correlation Platform: |
Size: 2048 |
Author:liujiaxin |
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Description: 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
Platform: |
Size: 2048 |
Author:季德海 |
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Description: 使用PAST算法进行子空间分析，MUSIC算法进行频率估计，实现了对信号的频率跟踪-Using the PAST subspace analysis algorithm, MUSIC frequency estimation algorithm to achieve the signal frequency tracking Platform: |
Size: 4096 |
Author:boxer |
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Description: 基于风能的充分利用, 从分析风力机运行特性出发, 针对变速恒频风力发电系统的特点, 综述了捕获最
大风能的方法,-Based on the full use o f wind ener gy , the operating char act eristics of the w ind turbine and the character
istics of v ariable speed co nstant frequency( VSCF) w ind pow er g ener at ion system ar e analyzed Platform: |
Size: 546816 |
Author:李旭 |
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Description: 在GPS软件接收机和SINS辅助GPS跟踪技术的基础上,提出了一种SINS/GPS超紧致组合导航方案。该超紧致方案在GPS软件接收机的捕获环节中加入了基于相位估计的精细捕获算法,从而提高了频率捕获精度,省略了频率跟踪牵引过程 在信号跟踪环节中,利用SINS位置、速度信息与卫星参数,求取接收机与卫星之间的径向距离和径向距离率,为码环、载波环提供辅助,从而降低了载体动态变化对跟踪环的影响,提高了跟踪环的动态跟踪性能 同时,降低载波环噪声带宽,减小码环相关间隔,从而提高了载波环和码环的跟踪精度。-On the basis of the software GPS receiver and SINS assisted GPS tracking technology, ultra-compact combination of an SINS/GPS navigation scheme. The Super Compact program was added in the capture of the GPS receiver software link based the phase estimate Narrow capture algorithm, thereby improving the accuracy of frequency acquisition, frequency tracking traction process is omitted signal tracking link SINS position, speed information and satellite parameters, to strike a radial distance between the receiver and satellite and the radial distance rate, to provide auxiliary code loop, carrier loop and thereby reducing the influence of the carrier dynamic changes of the tracking loop, and to improve the dynamic tracking of the tracking loop performance while reducing the noise bandwidth of the carrier loop, to reduce the code ring associated interval, thereby improving the accuracy of the tracking of the carrier ring and the code ring. Platform: |
Size: 17408 |
Author:LeeYJ |
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Description: 公司的120V并网逆变完整资料 已投入使用 包括原理图和pcb 源代码及编译好的固件 设计文档 实现了MPPT 电网幅值相位频率跟踪，并使得输出电流时钟与电网电压同相。-Company 120V grid inverter complete information has been put into use, including schematic and pcb firmware source code and design documents compiled achieve MPPT grid amplitude-phase frequency tracking, and makes the output current clock phase with the grid voltage. Platform: |
Size: 11699200 |
Author:cdz |
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Description: 设计一个LabVIEW的锁相环程序，实现频率跟踪。-LabVIEW program to design a phase-locked loop to achieve a frequency tracking. Platform: |
Size: 229376 |
Author:胡星 |
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Search - frequency tracking