Software-LAB-EC-V-SEM

communication system is expected to increase the service, the quality improvement and also the capacity, using spread spectrum communication system is one of the method to fulfill that demand. This quality and capacity factor will depend on the number of user. In order to see the performance of the Wiener Filter on the MC-CDMA system, simulation method is used by increasing the Direct Sequence Spread Spectrum CDMA signal, with digital modulation QPSK

This paper presents a new algorithm to extract the fetal ECG from an ECG recorded on the mother’s abdomen. The algorithm consists of two steps: first, ECG of fetus is extracted from the original signal using a two-level wavelet transform. We use Daubechie wavelet transform, which is similar in shape to heart beat wave. The resulted signal is then low-pass filtered using the Savitzky-Golay smoothing filter to attenuate the effect of noise. The filtered signal is considered as the fetal ECG. The algorithm was applied on both synthetic and real ECG signals. The results in this paper show that the proposed algorithm has promising performance.

geo软件接收机的功能实现 matlab代码(geo functions matlab)

STM8 interrupts how to implement in separate files

GPS仿真程序。很好的。用MATLAB实现仿真过程。(GPS Simulation code)

用MATLAB做的插值与拟合的程序及课件PPT。适合初学者。(MATLAB do interpolation and fitting procedures and courseware PPT. For beginners.)

This tutorial starts with a simple conceptual model of an analog Phase-Locked Loop (PLL). Through elaboration it ends at a model of an all digital and fixed-point phase-locked loop. The final model can serve a starting point for code generation (both ANSI C or synthesizable HDL). The step-wise elaboration of the model illustrates how Simulink® forms the basis a model-based design where continuous verification of the model reduces errors.

说明：  对图像进行均值化，并用均值化后的图进行数字全息的模拟，同时运用两种不同方法进行全息图的再现(The mean of the image and use the mean of digital holographic map after the simulation, while using two different methods of reproduction of the hologram)

用于滚动轴承故障诊断，找出特征频率，从而进行滚动轴承缺陷进行分析。(For rolling bearing fault diagnosis, to identify the characteristic frequency of rolling bearing defects were analyzed.)

超级大电容以及电池的充放电仿真，根据功率控制从而得到给定的输出功率(Super capacitor and battery charge and discharge simulation, according to power control to get a given output power)