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DigitalbasebandtransmissionsystemimplementationMAT
- 数字基带传输系统的MATLAB仿真实现 function [sampl,re_sampl]=system_1(A,F,P,D,snr,m,N) 输入变量A ,F,P分别为输入信号的幅度、频率和相位，D为量化电平数，snr 为信道信噪比，N为D/A转换时的内插点数；输出变量sampl为抽样后的输入 信号，re_sampl为恢复出的输入信号。 数字基带传输系统的MATLAB仿真实现 [sampl,quant,pcm]=a_d_1(A,F,P,D) [change
LMSfilter
- 假设一个接收到的信号为：x(t)=s(t)+n(t), 其中s(t)=A*cos(wt+a), 已知信号的频率w=1KHz， 而信号的幅度和相位未知，n(t)是一个服从N(0,1)分布的白噪声。为了利用计算机对信号进行处理， 将信号按10KHz的频率进行采样。 通过对x(t)进行LMS自适应信号处理，从接收信号中滤出有用信号s(t). 在未知信号频率的情况下，通过对x(t)进行LMS自适应信号处理，从接收信号中滤出有用信号s(t). -Assuming a received
TETRA_SIM
- TETRA Physical layer Phase Modulations, 12 files making up whole layer with added noise, Just put in frame numbers and simulate
DSSS_enhanced_with_a_coarse_time_synchronization_
- The .m file simulates a Spread-Spectrum Modulation Trx/Rcx system, in which, the phase of the pseudo-random sequence generated in the transmitter and used to encode the data stream is unknown a priory at the receiver.A parallel search strategy is emp
estimatingandintepretatininstantaneousfrequency.ra
- 瞬时频率的解释和瞬时频率估计算法的介绍，回顾目前存在的一些瞬时频率估计算法以及作者提出的新的算法-This paper, which addresses the important issue of estimating the instantaneous frequency (IF) of a signal, is a sequel to the paper which appears in this issue, and dealt with the concepts relat
01576960Beaulieu
- 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying in Rayleigh fading, using the Alamouti transmission scheme and receiver selection diversity in the presence of channel-estimation error, is studied. Closed-
MNK
- This program is designed to find the parameters of the method of least squares, building eksperimetalnyh and theoretical curves for to assess the quality of approximation for propagation occurs trend of all their characteristics: propagation time,
bssalgorithm
- 自己编写的，盲源分离算法仿真分析系统（图形界面）又名：独立分量分析；算法种类：自然梯度算法、投影自然梯度算法、FastICA、SOBI、NJD非正交联合对角化。信号种类： MASK：2ASK，4ASK，8ASK MPSK：2PSK、4PSK、8PSK MFSK：2FSK、4FSK、8FSK 分连续相位CPFSK和离散相位DPFSK两种 MQAM：16QAM、32QAM、64QAM、128QAM OFDM：子载波数可任意选定，映射方式有BPSK、QPSK、4QAM、16QAM、
t_direct_decon
- tsint.f90 Generates and writes a set of synthetic seismic traces that are read by the t_direct_decon.f90 code. The synthetic data is composed of 10 traces of 1000 samples, with a multiple of period p=200 samples, and reflection coefficient c=
qpsk
- the code for four bit qpsk with 90 degrees phase shift with constellation and without constellation of noise is given
Euler
- Euler方法 用C语言实现，并求解常微分方程组-The m framework appropriately generalizes notions such as gain margin, phase margin, disturbance attenuation, tracking, and noise rejection into a common framework suitable for analysis and design, in both single-loop and
RADAR_display
- The Radar Simulation GUI，雷达显示界面的代码，用matlab编写，包括所有的子程序，介绍文档。-I made this simulation as a project in a course I took in RADAR basic concepts. The RADAR is an Early Warning RADAR. The simulation simulates targets around the RADAR, calculates the expec
spectrum
- 给出正弦加噪函数，通过FFT,DTFT,做频谱变化，幅度谱和相位谱。-Sine plus noise function is given by FFT, DTFT, make changes in the spectrum, amplitude spectrum and phase spectrum.
RADAR_simulation
- The simulation simulates targets around the RADAR, calculates the expected return pulses and adds noise. The simulation works at the Intermediate Frequency (IF) level and I assume perfect phase reconstruction by the RADAR.
SVSLMS
- 本程序提出了变步长自适应滤波算法的步长调整原则:即在初始收敛阶段或未知系统参数发生变化时,步长应比较大,以便有较快的收 敛速度和对时变系统的跟踪速度 而在算法收敛后,不管主输入端干扰信号v ( n) 有多大,都应保持很小的调整步长以达到很小的稳态失调噪声. 根据变步长公式编的程序，很有参考价值. -This procedure, a variable step adaptive filter algorithm step adjustment principle: that in the
musicdsp
- musicdsp source code archive-Analysis Beat Detector Class Coefficients for Daubechies wavelets 1-38 DFT Envelope detector Envelope Detector class (C++) Envelope follower with different attack and release Fast in-place Walsh-Hadamard Tra
singularitydetection
- 提出一种两阶段的奇异点检测方法。将指纹图像分块，求出各块的方向构成块方向图，并在块方向图的基础上利用邻域方向的分 布分析结合改进的Poincare Index方法来确定奇异点所在的候选区域，对候选区域中的像素再通过计算局部方向变化率来确定奇异点的精 确位置。将此方法用于对FVC2004 DB1_A指纹数据库的图像，实验结果表明这种方法对指纹图像中的噪声有很好的鲁棒性，并且计算简 单快速，易于实现。 -A two-phase singularity detection. Finge
PSK
- PSK信号载波相位符号定时联合估计,载波环采用判决反馈环，去除噪声平方损耗，定时模块采用早迟原理， 里边有详细的注释，希望对大家有用。点击即可运行。-PSK signal carrier phase joint estimation of symbol timing, carrier ring using decision feedback loop, remove the noise square loss, using early-late timing module principle
Lab0304-XINT
- 在心电信号的采集过程中，会引入各种干扰噪声，如基线漂移。为了得到不失真的心电信号，在诊断分析前要对信号进行预处理---数字滤波。 FIR滤波器容易实现线性相位。对于相位要求严格的场合，要求用FIR滤波器实现滤波，实验要求用用FIR高通滤波器法去除其中基线漂移。 -ECG acquisition process, will introduce all kinds of interference noise, such as baseline drift. In order to get u
spm
- 零啁啾的高斯脉冲自相位调制，可通过改变相移的值发现非线性噪声-Zero-chirp Gaussian pulse self-phase modulation, phase shift by changing the values found in non-linear noise