搜索资源列表
SF_CAPUTE
- 高动态扩频信号快速捕获方法的研究，提供了一种较好的实现信号捕获的方法-Rapid acquisition of high-dynamic spread-spectrum signals research on methods to provide a better way to achieve signal acquisition
smartjam
- 灵巧干扰对直接序列扩频信号发射机和接收机的干扰仿真程序，包括通信发射机电路、接收机捕获电路、码跟踪电路、载波捕获电路、防假捕电路、信噪比估计电路和数据解调电路-Smart interference on direct sequence spread spectrum signal transmitter and receiver interference simulation program, including communicati
hopping
- 现代通信中跳频信号的识别，主要是matlab的几个程序。-Modern communication frequency hopping signal identification, mainly a few matlab program.
zi
- 在本系统中，信息序列在先经过FSK调制，经过截止频率为25kHz的低通滤波器后（把信号频率限制在25kHz），再进入混频器搬移到更高的频率发送出去，在接收端，用与发送端同步的跳频信号对其进行变频（跳频的解跳处理在此进行），取下边频，然后进行FSK的解调-In this system, the message sequence prior through FSK modulation, through the cut-off freque
mixerfft
- 快速傅立叶变换(FFT)算法硬件实现。按CTR控制板的K6键，可以显示A、B两信号源频谱，K7键实现混频显示，按K8实现键A、B两信号源分屏显示。-Fast Fourier Transform (FFT) algorithm for hardware implementation. By CTR panels K6 key, you can display A, B two source spectrum, K7 key to achi
dsss_signal_detection_and_parament_estimate
- 自相关检测方法是利用信号和噪声在相关域上的差别来构造检测器的。自相关检测是将信号与自身延迟一个时延后的信号作相关处理，或用双通道接收机的输出进行相关，得到扩频信号的自相关函数-Auto-correlation detection method is the use of signal and noise in the relevant field to construct the difference detector. Autocor
Digitalpower
- 单片机设计了一种单片锁相倍频电 路，利用片内定时器和数字算法实现了对输入信号的同步 锁相和倍频，并输出倍频信号-: A single- chip digital phase- locking frequency- multi- plier circuit is designed based on the AT89c2051.The circuit can track the input signal in- phase
zhengxianbo
- 对正弦波信号进行混频，分解，采用傅立叶变换来分析其频率-Mixing of sinusoidal signals, decomposition, using Fourier transform to analyze the frequency
DBF_matlab
- 对16阵源的回波信号进行数字波束合成，包括回波信号仿真、权值进行泰勒加窗、数字混频、波束合成处理的仿真-16 sensor array digital beam echo signal synthesis, including the echo signal simulation, the value of the Tai Lejia windows, digital mixing, beam forming processing si
zishiying
- 利用自适应滤波法研究从宽带信号中提取单频信号的方法-Adaptive filtering of broadband signals from a single frequency signal extracting method
fdf
- 噪声背景下的单频信号检测方法.pdf 噪声背景下的单频信号检测方法.pdf 噪声背景下的单频信号检测方法.pdf-Background noise of single frequency signal detection method. Pdf background noise of single frequency signal detection method. Pdf background noise of single
UWB-signal-generation
- 跳时超宽带信号的产生,有关跳频信号的超宽带信号产生-UWB signal generation, the frequency-hopping ultra-wideband signal generation signal
提取周期信号
- 用于信号的周期成分提取，使用的最小二乘方法，拟合出一个单频的正弦信号。(For the extraction of periodic components of signals, the least square method is used to fit a sinusoidal signal of a single frequency.)
频率
- 精确估计双音多频信号的频率，数据文件采样频率为8kHz，“double”格式，估计出电话号码。(Accurate estimation of the frequency of dual tone multifrequency signals, data files, sampling frequency of 8kHz, double format, to estimate the number of the phone.)
信号与系统应用
- 信号与系统的应用，对同一个连续周期信号，选定不同采样间隔 s T 和信号截取长度 1 T ，获得离散 信号，使用DFT或FFT 进行频谱分析，画出频谱图，与理论计算的结果进行比 较，观察： （1）不同采样率 s T 对频率范围和混叠误差的影响； （2）不同采样长度 1 T （单周期采样和多周期采样）对频率分辨率的影响； （3）是否完整周期采样对泄漏误差的影响，多周期采样是否可以减小非完整周 期采样产生的泄漏误差。 以下信号中叠加
载频估计
- 信号载波估计，可适用于多种信号的载波频率估计、解调等。(Signal carrier estimation can be applied to carrier frequency estimation and demodulation of various signals.)
matlab小波分解时频分析
- 传统的傅立叶变化只能分析时域、频域图，而小波变化能进行时频分析，对信号进行更好的处理。(The traditional Fourier transform can only analyze the time domain and frequency domain diagram, while the wavelet transform can carry on the time-frequency analysis and better
语音信号处理
- 采用MATLAB 2015b综合运用各种函数调用等来实现语音信号时域的短时能量，短时过零以及短时自相关函数分析和频域的傅里叶变换，功率谱估计，短时傅里叶变换，小波分析，语音信号的短时综合，语谱图各种分析，充分了解熟悉语音信号的相关分析方法。(This experiment uses the MATLAB 2015 b, the integrated use of various kinds of function call to rea
DS扩频仿真
- 该系统由matlab实现，包括信号的产生、传输、调制、解调、解码等一系列的过程的模拟。(Direct Sequence Spread Spectrum)
调幅信号
- 上传程序中使用MATLAB语言，包含各类的调幅信号的产生函数，并通过图像形式显示时频域图像关系。(Upload program using the MATLAB language, including all kinds of AM signal generation function, and through the image form to display time-frequency domain image relations