A-methog

qrs detection code written in matlab

低通滤波,很好用，低通滤波器大家很常用，这是一个基于Simlink下简单的低通滤波器，适合初学者学习掌握(Low-pass filters are commonly used. This is a simple low-pass filter based on Simlink. It is suitable for beginners to learn and master.)

The user material subroutine example

说明：  升压转换器是一种DC / DC电源转换器，可将电压从其输入（源）升至其输出（负载）。在连续导通模式下（流经电感的电流永远不会降为零），升压转换器的理论传递函数为： 占空比在哪里0.5 在此示例中，转换器从250 V电源馈送RC负载，并且PWM频率设置为31 kHz。 模拟 运行仿真并观察示波器上的波形。确认负载电压（Vout）的平均值非常接近理论值：Vout = 250 /（1- 0.5）= 500V。(A boost converter is a DC/DC power converter which steps up voltage from its input (source) to its output (load). In continuous conduction mode (current through the inductor never falls to zero), the theoretical transfer function of the boost converter is: where is the duty cycle.0.5 In this example, the converter is feeding an RC load from a 250 V source and the PWM frequency is set to 31 kHz. Simulation Run the simulation and observe waveforms on Scope. Verify that the mean value of the load voltage (Vout) is very close to the theoretical value of: Vout = 250 / (1 - 0.5) = 500 V.)

PCA数据降维，利用MATLAB进行开发学习(PCA of data dimensionality reduction, using MATLAB to develop learning)

Source Codes for the Matlab help files

OFDM/OQAM系统代码，采用PHYDYAS滤波器，包括PPN结构和IFFT模块。(Code of OFDM/OQAM system, shape impulse is PHYDYAS filter,with PPN network for transmitting.)

A simple m-file to compute the experiemntal BER of coded BPSK(A simple m-file to compute the experiemnta l coded BER of BPSK)

对语音信号进行16QAM调制解调画星座图(The speech signal constellation 16QAM modulation and demodulation Videos)

Earthworms can aerate the soil with their burrowing action and enrich the soil with their waste nutrients. Inspired by the earthworm contribution in nature, a new kind of bio-inspired metaheuristic algorithm, called earthworm optimization algorithm (EWA), is proposed in this paper. The EWA method is inspired by the two kinds of reproduction (Reproduction 1 and Reproduction 2) of the earthworms. Reproduction 1 generates only one offspring by itself. Reproduction 2 is to generate one or more than one offspring at one time, and this can successfully done by nine improved crossover operators. In addition, Cauchy mutation (CM) is added to EWA method. Nine different EWA methods with one, two and three offsprings based on nine improved crossover operators are respectively proposed. The results show that EWA23 performs the best and it can find the better fitness on most benchmarks than others.