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jiekou
- 控制四相步进电机按双八拍的运行方式运行。按下开关SW1时启动步进电机,按ESC键停止工作。采用循环查表法,用软件来实现脉冲循环分配器的功能对步进电机绕组轮流加电。 要求对题目进行功能分析(四项功能:快速顺时针旋转,慢速顺时针旋转,快速逆时针旋转和慢速逆时针旋转),进行步进电机远程控制系统硬件电路设计,画出电路原理图、元器件布线图、实验电路图;绘制程序流程图,进行步进电机控制程序设计(采用8086汇编语言);系统调试、运行,提交一个满足上述要求的步进电机控制系统设计 -Four phase
IR
- 对IQ接收器最重要的两个参数,即I和Q两路分量之间的幅度一致性和相位正交性,可采 用如下办法计算:把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比(即频域内的信号与信号镜像的幅度比) ,通过镜像抑制比和幅度一致性,可求出接收机的I和Q两路分量之间的相位正交性。-IQ receiver for the two most important parameters, namely
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
shanchen
- LBM方法的shan-chen两相流分离模拟-LBM method shan-chen two-phase separation simulation
1
- AM调制和SSB调制的labview程序,SSB调制使用滤波法和移相法两种方法-AM modulation and SSB modulation labview program, SSB modulation method using the filtering method and two phase shift method
Irdeected
- In order to solve the power quantity problem of negative sequence current and harmonic current in high-speed railway, railway static power conditioner (RPC) was adopted. RPC contains two inverters which are connected with each other by sharing a DC c
DPD_Digital-phase-detector
- This the phase difference calculation method based on digital phase detector DPD. It uses Hilbert transform to shift one signal the other by 90 degree. Then by some manipulation, extract the phase difference between two signals.-This the phase diff
phase_difference_with_fft
- The program contains the implementation of phase difference estimation based on fast fourier transform. The Fourier transform is applied on the two signal, after some manipulation the phase difference between the two signal is estimated. This