搜索资源列表
Autocorrelation
- 基于labview的多重自相关算法测量低信噪比条件下两路正弦波的相位差-Based on the phase difference between two sine wave labview multi the autocorrelation algorithm measuring low signal-to-noise ratio conditions
Cross-correlation
- 基于labview8.6的FFT法测量低信噪比条件下两路方波信号的相位差，经测试，幅值测量精度和相位测量精度都很高-Based labview8.6 FFT method to measure the phase difference between the two square wave signals in low signal-to-noise ratio conditions, test, amplitude measurement accuracy and phase measurem
330
- 提出了将信号进行相空间重构后再采用奇异值分解, 对分解后的主成分进行包络分析, 从而提取信号的隐含特 征的方法, 并将该方法应用于齿轮的局部故障振动特征信号的提取中。数值仿真实验结果表明, 该方法能有效提取强背景 信号及噪声中的弱冲击特征信号, 是一种有效的弱信号特征提取方法。采用该方法对齿轮振动信号进行故障特征提取与识 别, 结果与实际情况相符。-Signal implicit characteristic of phase space reconstruction, and th
PDM-QPSK
- 偏振复用正交相移监控通信系统信噪比理论值计算-Polarization multiplexed quadrature phase shift monitoring communication system signal-to-noise ratio theoretical value
suoxiangxiangweijiance
- 检测两路正弦信号时使用锁相相位检测的方法是结果更加准确对噪声的抗干扰能力强-Detect two sinusoidal signals using the lock-phase detection method is more accurate results to noise interference ability
MATLAB_rpcedure_basic
- 信道估计程序，包括对多路径信号经过加权后进行最佳信噪比和相位估计-Channel estimation procedures, including multipath signals after weighting the best signal-to-noise ratio and phase estimation
2DPSK
- 用SystemView仿真实现二进制差分相（2DPSK）的模拟调制及2DPSK的差分解调，对二进制差分相位键控（2DPSK）的抗噪声性能估计。 -SystemView Simulation the binary differential phase (2DPSK) of analog modulation and 2DPSK differential demodulation estimated binary differential phase the keying (2DPSK) of
evaluate
- 此程序可以利用相位一致性计算含有条带噪声不同带宽高光谱图像的图像质量。-This program can take advantage of the phase coherence calculated noise bandwidth hyperspectral image containing bands image quality.
sumple
- 研究了合成权值的补偿相位估计性能，分析了天线数对算法性能的影响，适合于低信噪比-Studied the synthetic weight to compensate the phase estimation performance, analyzed the antenna effect the performance of the algorithm, is suitable for low signal-to-noise ratio
pm
- 实验一 模拟调制解调,调相波的调制解调，以及加噪滤波-Experimental an analog modulation and demodulation, phase modulation and demodulation wave, and with noise filter
PMT
- 实验一 模拟调制解调,调相波的调制解调，以及加噪滤波-Experimental an analog modulation and demodulation, phase modulation and demodulation wave, and with noise filter
high-dynamic-carrier-tracking
- 基于频率锁定环路和相位锁定环路级联，高斯噪声下的高动态实现载波跟踪-Based on frequency-locked loop and a phase locked loop cascade, the Gaussian noise high dynamic carrier tracking
dsp
- 随机过程： ，其中 是均值为零、方差为1的白噪声， 、 是相互独立并在 上服从均匀分布的随机相位。采用AIC和MDL准则估计信号源个数，并且画出相应的MUSIC频率估计谱线。 要求：信号样本数为1000，估计的自相关矩阵为8阶。 -Stochastic process: where is zero mean and variance 1 white noise, are independent and uniformly distributed on a random phase. Es
ADSP
- 设x(n) = x1(n) + x2(n)，x1(n)是窄带信号，定义为x1(n) = sin(0.05πn +φ)，φ是在[0, 2π)区间上均匀分布的随机相位。x2(n)是宽带信号，它由一个零均值、方差为1的白噪声信号e(n)激励一个线性滤波器而产生，其差分方程为x2(n) = e(n) + 2e(n-1) + e(n-2)。 (1)计算x1(n)和x2(n)各自的自相关函数，并画出其函数图形。据此选择合适的延时，以实现谱线增强。 (2)产生一个x(n)序列。选择合适的μ
AIC
- 赤池准则 可以实现噪声检测 P波震相捡拾 S波震相捡拾等地震学基本操作等-Akaike criterion can achieve noise detection P-wave seismic phase picking S phases pick up basic operations such as seismology, etc.
GMSK
- GMSK调制，无噪声，给出了高斯滤波器，IQ两路幅度与相位的波形等-GMSK modulation, noise, gives a Gaussian filter, IQ amplitude and phase of the two waveforms
phasedifference
- 利用DFT实现两轮信号相位差计算，包含谐波信号污染，白噪声信号污染分析-Phase difference between two signals to achieve the use of DFT calculations, the signal containing harmonics pollution, contamination white noise signal analysis
QPSK
- 对原始信号进行四相相移键控调制，然后加入高斯白噪声，对加噪信号进行解调，对比解调信号与原始信号，计算误码率-The original signal quadrature phase shift keying modulation, and then adding Gaussian white noise, plus noise signal is demodulated, comparing the demodulated signal with the original signal, bit
PLL_Design-(G)
- 二阶锁相环系统的设计，有效提高信噪比，便于跟踪锁定- Second-order phase-locked loop system designed to effectively improve the signal to noise ratio, ease of tracking lock
code
- 频域图像增强，交换两幅图像的相位谱，利用频域滤波消除周期噪声-Frequency-domain image enhancement, image exchange two phase spectrum, frequency domain filtering to eliminate periodic noise