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a_d_1.rar
- (一)基本任务:单频正弦波模拟信号的简单数字化。即对一个单频正弦波模拟信号进行抽样、均匀量化、PCM二进制自然编码。 1、主要步骤和要求: (1)单频正弦波模拟信号的抽样实现。要求输入信号的幅度A、频率F和相位P可变;要求仿真时间从0到2/F,抽样频率为Fs=20F;要求给出抽样信号samp的波形图。 (2)单频正弦波模拟信号均匀量化的实现。要求对抽样信号sampl归一化后再进行均匀量化;要求量化电平数D可变;要求输出信号为平顶正弦波;要求给出量化输出信号quant的波形图,并与抽样信号s
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- 多普勒频移引起无线信道输出信号的混叠,仿真单径瑞利信道,-DOPPLER
time_varying_multipath_channel
- 单频信号经过多径时变信道后,输出信号的包络随时间随机起伏,输出信号的频谱从冲激谱变成一个窄带频谱。径数位20,变化频率从0—2HZ随机均匀抽取。-Single-frequency signal through time-varying multipath channel, the output signal envelope random fluctuations over time, the output signal from the impulse of the spectrum into
f5e8291f-8f6c-4827-88f7-d0870b3940d6
- 关于ADI公司的DDS——AD9858的测试程序,可以产生单载频信号。-About ADI' s DDS- AD9858 testing procedures, can produce a single carrier frequency signal.
SCFDE
- 单载波频域均衡SC-FOMA的主要优点是调制后的信号PAPR特别低,所以E-UTRA把它单载波传输(SC-FOMA)技术作为上行链路(UL)的主流候选传输方案之一。-single carrier
ch5example6
- 调频立体声接收机模型 对相应的立体声解码过程进行建模和仿真。设左右声道的信号分别为1000Hz和2000Hz的单频测试信号。 -FM stereo receiver model for the corresponding stereo decoding process modeling and simulation. Set left and right channel signals were 1000Hz and 2000Hz single frequency test signal.
wigner
- 该代码通过对常规单脉冲雷达信号、LFM雷达信号和BPSK雷达信号通过wiger变换,得到三种信号的时频图,分析他们的时频关系和区别。-The code on conventional single-pulse radar signals, LFM radar signals and radar signals BPSK wiger transformation, three kinds of time-frequency map analysis of their relationship an
beamforming
- 自编的两个十字阵时域波束形成的算法,对单频信号进行扫描-Self cross array time-domain beamforming algorithm, the single-frequency signal for scanning
LFMSignalAmbFuncMatlabCode
- 雷达信号的模糊函数Matlab代码,包括线性调频信号,线性调频脉冲串信号,以及作为对照的单频信号。通过比较分析可以得到不同信号的模糊函数表现出的不同特征。-Radar chirp signal ambiguity function Matlab code, including linear FM signal, the chirp pulse train signal, as well as the control of the single-frequency signal.
FANSHUSHANG
- 求解加噪信号的范数熵,本程序是选取单载频信号求解其范数熵-Solving the norm of the signal plus noise entropy, the procedure is to select a single carrier frequency signal solving its norm entropy
eemd
- EMD方法,可将非平稳信号降解为单频信号。用于分析其频谱特性。-EMD method, the non-stationary signal degradation for single-frequency signal. For the analysis of their spectral characteristics.
mrife
- m-rife,单频信号的频率估计,适合初学者学习-m-rife, single-frequency signal frequency estimation, suitable for beginners to learn
wv_con
- WVD对单频信号进行分析的程序,具有良好的提取信号特征功能-WVD of single-frequency signal analysis program, extracts a signal having a good characteristic features
mohuduzhaidai
- 模糊度窄带,分为为单频信号,线性调频,双曲调频信号。通过模糊度椭圆计算时间分辨率和频率分辨率。-Narrowband ambiguity, divided into single-frequency signal, chirp, HFM signal. Computing time resolution and frequency resolution through ambiguity ellipse.
Maximum-likelyhood
- 代码中含有信号处理算法中应用到的模糊度函数(单频信号、线性调频信号)及最大似然检测和估计算法,findpeak为峰值寻找算法,M kay为Steven M.Kay一书中描述的最大似然算法-Maximum code contains signal processing algorithm applied to the ambiguity function (single-frequency signal, the chirp signal) and maximum likelihood detec
f_estimator
- 关于单频信号测频的一种极大似然估计的快速方法- For quick single-frequency signal frequency measurement method a maximum likelihood estimators
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.)
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。 以下信号中叠加了一个角频率为50 ? 的高频干扰信号,信号如下: 3 (
伪随机相位编码脉冲雷达的信号处理
- 伪随机相位编码脉冲雷达的信号处理。设码频 02,单位为 MHz,伪码周期内码长为 127,占空比 10%,雷达载频为 10GHz,输入噪声为高斯白噪声。目标模拟分单目标和双目标两种情况,目标回波输入信噪比可变(-35dB~10dB),目标速度可变(0~1000m/s),目标幅度可变(1~100),目标距离可变(0~10000m),相干积累总时宽不大于 10ms。单目标时,给出回波视频表达式;脉压和 FFT后的表达式;仿真 m序列的双值电平循环自相关函数,给出脉压后和 FFT后的输出图形;
complex_reverberation
- 可实现海洋混响信号统计模型的建立,发射信号为LFM或单频信号,参数可调,得到的模型很好的符合混响的统计特性(It can establish the statistical model of marine reverberation signal. The transmitted signal is LFM or single frequency signal, and the parameters can be adjusted. The model is in good agreement