Description: VHDL写的LMS算法程序。利用本地正弦信号，根据LMS算法对输入信号进行跟踪。用以产生和输入信号同频同相的本地信号。-VHDL LMS algorithm written procedures. The use of local sinusoidal signal, according to the LMS algorithm for tracking the input signal. Used to produce and the input signal with frequency phase with the local signal. Platform: |
Size: 271104 |
Author:黄鹤 |
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Description: 帧同步检测源码，包括同步跟踪模块，fifo,分频模块，还有系统的测试平台-frame synchronization source detection, including synchronous tracking module, fifo, frequency module, and system test platform Platform: |
Size: 6052 |
Author:liu |
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Description: FFT的实现在LPC2378上。首先采用了拉个朗日插值算法对采集的电网波形频率跟踪，然后使用128点的FFT。-FFT on achieving the LPC2378. First used in the Rafah Colon day interpolation algorithm for the acquisition tracking grid frequency waveform, and then use the 128 point FFT. Platform: |
Size: 26082 |
Author:张红卫 |
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Description: 将提升小波用于目标跟踪。
小波提升的核心就是更新算法和预测算法,通过预测算法可以得到高频信息,而通过更新算子可以得到正确的低频信息.提升样式可以实现原位计算和整数提升,并且变换的中间结果是交织排列的.其中原位计算和整数提升在硬件实现中很有价值.-will enhance wavelet for target tracking. Lifting the core algorithm and is updated prediction algorithm, algorithm can be predicted high-frequency information, and by updating operator can correct the low-frequency information. upgrade format can achieve in-situ upgrade and Integer calculations, and transform the intermediate results are intertwined with a. which integer calculation and in-situ upgrading the hardware realization of great value. Platform: |
Size: 218235 |
Author:大仙 |
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Description: VHDL写的LMS算法程序。利用本地正弦信号，根据LMS算法对输入信号进行跟踪。用以产生和输入信号同频同相的本地信号。-VHDL LMS algorithm written procedures. The use of local sinusoidal signal, according to the LMS algorithm for tracking the input signal. Used to produce and the input signal with frequency phase with the local signal. Platform: |
Size: 270336 |
Author:黄鹤 |
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Description: 帧同步检测源码，包括同步跟踪模块，fifo,分频模块，还有系统的测试平台-frame synchronization source detection, including synchronous tracking module, fifo, frequency module, and system test platform Platform: |
Size: 6144 |
Author:liu |
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Description: FFT的实现在LPC2378上。首先采用了拉个朗日插值算法对采集的电网波形频率跟踪，然后使用128点的FFT。-FFT on achieving the LPC2378. First used in the Rafah Colon day interpolation algorithm for the acquisition tracking grid frequency waveform, and then use the 128 point FFT. Platform: |
Size: 25600 |
Author:张红卫 |
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Description: 光伏并网系统以MSP430F169 单片机为核心，单片机输出SPWM 波形经IR2110驱动H桥，实现DC-AC 逆变。最大功率点跟（MPPT）绝对误差小于1 ，利用430单片机软件实现锁相环，用参考频率作为基准频率，对MSP430单片机的外中断和定时器测定相位，当反馈的电压信号相位滞后（超前）于参考信号的相位时，就增大（减小）SPWM的频率；达到相位和频率同步。包括阻性负载，以及非阻性负载，实现了频率跟踪，相位跟踪。DC-AC 转换效率达88 ，人机接口LCD液晶显示器，界面直观、简洁，显示输出电压、电流，具有良好的人机交互性能。-Photovoltaic (pv) grid system to MSP430F169 microcontroller as the core, the microcontroller output SPWM waveform by IR2110 driver H bridge, realize DC- AC inverter. Maximum power point (MPPT) with absolute error less than 1 , using 430 single chip microcomputer software phase-locked loop, with the reference frequency as a benchmark, external interrupt and timer of MSP430 single chip microcomputer phase, when the voltage feedback signal phase lag (advanced) in the phase of reference signal, will increase (decrease) of SPWM frequency To achieve phase and frequency synchronization. Including impedance load, as well as non resistance load, has realized the frequency tracking and phase tracking. DC- AC conversion efficiency up to 88 , and the man-machine interface LCD liquid crystal display, intuitive interface, concise, shows that the output voltage, current, has the good man-machine interactive performance. Platform: |
Size: 380928 |
Author:Tim Denve |
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Description: 一篇关于GPS单频软件接收机的捕获和跟踪算法的文章，并基于MATLAB平台在PC上仿真了GPS单频软件接收机-A paper about a single frequency GPS software receiver capture and tracking algorithms, and design a software receiver based on the MATLAB platform on PC for single frequency GPS Platform: |
Size: 374784 |
Author: |
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Description: 使用最小二乘法、最大似然法、奇异值分解法估计信号中正弦分量频率的python代码。可用于频率追踪。-
Using a least squares method, maximum likelihood method, singular value decomposition method to estimate the signal frequency sinusoidal component python code. It can be used for frequency tracking. Platform: |
Size: 2048 |
Author:乱_衣服 |
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Description: 电网同步跟踪技术，自己搭的锁相环,可以运行出来。有频率跟踪，还有正负序分离-Grid synchronization tracking technology, take their own phase-locked loop, you can run out. There is frequency tracking, there are positive and negative sequence separation Platform: |
Size: 23552 |
Author:zhaosimin |
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Description: 光伏逆变锁相环，使用DSP28335，实现频率跟踪，首先采样，然后PI，然后输出(Photovoltaic inverter PLL, using DSP28335, to achieve frequency tracking, first sampling, then PI, and then output) Platform: |
Size: 882688 |
Author:豆豆1233321 |
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Description: 扫描频率，追踪频率，锁定频率之前做雾化器用的代码，挺好用，拿出来分享(Scanning frequency, tracking frequency, locking frequency before making the atomizer code, good use, take out to share) Platform: |
Size: 11264 |
Author:风一样的 |
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Description: 超音频串联谐振式感应加热电源为研究对象，应用锁相环和PID 技术，采用数字信号处理器(DSP)和复杂可编程逻辑器件(CPLD)联合控制的数字化技术实现感应加热电源的频率跟踪和0°～180° 自由移相调功，为感应加热电源系统的数字化、信息化、柔性化、智能化控制提供了优质、可靠的技术基础。(Superaudio series resonant induction heating power supply as the research object, the application of PLL and PID technology, using digital signal processor (DSP) and complex programmable logic device (CPLD) to achieve frequency tracking of induction heating power supply and 0 degrees to 180 degrees of freedom PS-PWM digital technology combined control for induction heating power supply system. Digital information, flexible and intelligent control to provide high-quality and reliable technical basis.) Platform: |
Size: 1199104 |
Author:destyni |
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Description: 针对倍频电源的主电路拓扑结构，研究分析一种分时控制与密度调功相结合的分时一密度复合功率控制策略，并应用复杂可编程逻辑器件CPLD和数字信号处理器DSP的协调工作来实现分时一密度复合调功、频率跟踪控制及保护等，以MOSFET为主控器件，采用倍频的方式实现700kHz／10kW高频大功率感应加热电源。(In view of the main circuit topology of frequency doubling power supply, a time-sharing and one density hybrid power control strategy is studied and analyzed, which combines time-sharing control and density power regulation. The coordinated work of complex programmable logic device CPLD and digital signal processor DSP is used to realize time division and one density function, frequency tracking control and protection, and MOSFET is the main control device and frequency doubling is used. Now, 700kHz / 10kW high frequency and high power induction heating power supply.) Platform: |
Size: 5719040 |
Author:destyni |
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Description: 采用SG3525实现感应加热电源的频率跟踪。(SG3525 is used to realize frequency tracking of induction heating power supply.) Platform: |
Size: 348160 |
Author:劳资是誰 |
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Description: Over-the-horizon radar (OTHR) exploits skywave propagation
of high-frequency signals to detect and track targets,
which are different from the conventional radar. It
has received wide attention because of its wide area surveillance,
long detection range, strong anti-stealth ability,
the capability of the long early warning time, and so on.
In OTHR, a significant problem is the effect of multipath
propagation, which causes multiple detections via
different propagation paths for a target with missed detections
and false alarms at the receiver [1–6]. Nevertheless,
the conventional tracking algorithms, such as
probabilistic data association (PDA) [7–9], presume that
a single-measurement per target, it may consider the
other measurements of the same target as clutter, and
multiple tracks are produced when a single target is
present. Therefore, these methods cannot effectively
solve the multipath propagation problem.(Conventional multitarget tracking systems presume that each target can produce at most one measurement
per scan. Due to the multiple ionospheric propagation paths in over-the-horizon radar (OTHR), this assumption is
not valid. To solve this problem, this paper proposes a novel tracking algorithm based on the theory of finite set
statistics (FISST) called the multipath probability hypothesis density (MP-PHD) filter in cluttered environments.
First, the FISST is used to derive the update equation, and then Gaussian mixture (GM) is introduced to derive
the closed-form solution of the MP-PHD filter. Moreover, the extended Kalman filter (EKF) is presented to deal
with the nonlinear problem of the measurement model in OTHR. Eventually, the simulation results are provided
to demonstrate the effectiveness of the proposed filter.) Platform: |
Size: 18432 |
Author:ioeyoyo |
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Search - frequency tracking