IIRandFIR

PMSM的FOC无传感器电机控制，基于dsPIC33F系列，低压版(Sensorless FOC of PMSM motor control)

说明：  用MATLAB进行AM调制解调的仿真实验 包含包络 加噪 调制系数等变量的影响(The simulation experiment of AM modulation and demodulation with MATLAB includes the influence of envelope plus noise modulation coefficient and other variables)

说明：  newmark数值积分法解动力学方程组，很实用哟。(Newmark numerical integration method for kinetic equations, it is practical yo.)

AM调制与解调，信息信号和载波信号经过AM调制并加噪得到AM信号的频谱，再经过带通滤波器，相干解调，低通滤波后得到解调后的信号。(AM modulation and demodulation, information signal and carrier signal through AM modulation and noise to get the spectrum of AM signal, then through band-pass filter, coherent demodulation, low-pass filter to get the demodulated signal.)

双音多频 DTMF（Dual Tone Multi Frequency），双音多频，由高频群和低频群组成，高低频群各包含4个频率。(Dual-tone multi-frequency signaling (DTMF) is used for telecommunication signaling over analog telephone lines in the voice-frequency band between telephone handsets and other communications devices and the switching center. The version of DTMF that is used in push-button telephones for tone dialing is known as Touch-Tone. It was developed by Western Electric and first used by the Bell System in commerce, using that name as a registered trademark. DTMF is standardized by ITU-T Recommendation Q.23. It is also known in the UK as MF4.)

直流电机双闭环调速仿真模型,实现直流电机双闭环系统的matlab仿真(The simulation model of DC motor using Double-loop speed control )

合众达SEED-DEC137开发板的硬件测试，CCS环境。( SEED-DEC137 Hardware Test)

<应用WVD估计AM_FM信号的瞬时频率>,该文研究了应用WVD谱峰检测估计AM-FM信号的瞬时频率的方法及其性能。(< Application WVD estimate AM_FM signal instantaneous frequency> This paper studies the application of WVD peak AM-FM signal detection estimates the instantaneous frequency method and its performance.)

线性调频信号的参数检测和估计原理方法，以及LFM信号的参数估计步骤(Linear FM signal parameter detection and estimation theory methods, and the LFM signal parameter estimation procedure)

语音信号的FIR滤波工程，可在DSP 5509A环境下运行，并运用CCS图形工具观测滤波效果。(FIR filtering of speech signal, can be run in the 5509A DSP environment, and the use of CCS graphics tools to observe the filtering effect.)