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Multi-component-Chirp-estimation
- 提出一种联合循环平稳法与多普勒模糊数搜索法的多分量Chirp信号相位参数精确估计算法，与已有循环平稳算法相比，该算法的相位参数取值范围不受限，低信噪比下的相位参 数估计精度约提高30 dB-Smooth fuzzy numbers and Doppler search method for multi-component the Chirp signal phase parameters the precise estimation algorithm, compared with exis
sar_azimuth_phase_error
- 不同类型的相位误差对SAR方位向聚焦的影响，包括线性误差，二次，三次误差，高频误差和白噪声-To focus on the phase of the different types of errors on the SAR azimuth, including linearity error, quadratic, cubic error, frequency error, and the white noise
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
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- 提出了一种结合SVD的小波变换方法，对其在外弹道测量数据中的野值剔除进行了研究。对观测数据进行小波分解，将小波分解后的近似分量和细节分量组合实现相空间重构，作为SVD方法的输入观测矩阵，根据奇异 熵增量准则，对奇异值进行筛选，根据SVD逆变换重构原信号。这一方法克服了Hankel矩阵相空间构建方法数据 端点失真问题。以小波分解后分量重构的相空间可以满足正交性，进一步提高了SVD进行数据降噪和野值检测的精度。仿真数据和试验数据处理结果证明了这一方法的有效性。-Proposed a meth
2Dphase-unwrap
- 介绍了噪声，采样等在二维相位解缠中的影响，可以加深对相位解缠中任意路径累加相位的理解-Introduces noise, sampling, etc. in the two-dimensional phase unwrapping effects can deepen the phase unwrapping phase accumulated in the understanding of any path
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
Attachments_2013529
- In this post, we will derive the theoretical equation for bit error rate (BER) with Binary Phase Shift Keying (BPSK) modulation scheme in Additive White Gaussian Noise (AWGN) channel. The BER results obtained using Matlab/Octave simulation scr ipts s
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.