A boxcar integrator is described which is suitable for the low-repetition-rate signal processing. This boxcar integrator, named fixed-interval mode boxcar integrator, is able to reject harmonics other than the first h...A boxcar integrator is described which is suitable for the low-repetition-rate signal processing. This boxcar integrator, named fixed-interval mode boxcar integrator, is able to reject harmonics other than the first harmonic component. It can also decrease the effective time constant In many situations, the antialiasing filter with narrow bandwidth will cause distortion of the input signal. The fixed-interval mode boxcar integrator with suitable gate width can achieve relative high performance without signal distortion because the bandwidth of its antialiasing filter can be wider than that in the fixed-Point boxcar integrator. ms boxcar integrator is used as majn part of signalprocessing circult in the low resisance measurement of inductive load coil. The results of experiments show that the fixed-interval boxcar integrator is suitable for low-repetition-rate use.展开更多
无论在稳态运行还是暂态过程中,发电机的运行状态与励磁系统紧密相关。为此,研制一种教学用新型发电机微机励磁实验装置,采用TI公司高性能定点DSP(Digital Signal Processing)芯片TMS320F2812为处理器的双CPU构架。其控制核心测控CPU主...无论在稳态运行还是暂态过程中,发电机的运行状态与励磁系统紧密相关。为此,研制一种教学用新型发电机微机励磁实验装置,采用TI公司高性能定点DSP(Digital Signal Processing)芯片TMS320F2812为处理器的双CPU构架。其控制核心测控CPU主要负责对发电机定子电压、电流进行交流同步采样、电参数计算、PID控制输出、开关量检测、限制判断、通信处理等功能;人机交互CPU则完成键盘处理、LCD显示、通信任务。该实验装置能够进行一系列的励磁实验,具有完备的实验培训功能;同时具有占地小、投资少、结构可靠、直观高效、应用广的特点。展开更多
文摘A boxcar integrator is described which is suitable for the low-repetition-rate signal processing. This boxcar integrator, named fixed-interval mode boxcar integrator, is able to reject harmonics other than the first harmonic component. It can also decrease the effective time constant In many situations, the antialiasing filter with narrow bandwidth will cause distortion of the input signal. The fixed-interval mode boxcar integrator with suitable gate width can achieve relative high performance without signal distortion because the bandwidth of its antialiasing filter can be wider than that in the fixed-Point boxcar integrator. ms boxcar integrator is used as majn part of signalprocessing circult in the low resisance measurement of inductive load coil. The results of experiments show that the fixed-interval boxcar integrator is suitable for low-repetition-rate use.
文摘无论在稳态运行还是暂态过程中,发电机的运行状态与励磁系统紧密相关。为此,研制一种教学用新型发电机微机励磁实验装置,采用TI公司高性能定点DSP(Digital Signal Processing)芯片TMS320F2812为处理器的双CPU构架。其控制核心测控CPU主要负责对发电机定子电压、电流进行交流同步采样、电参数计算、PID控制输出、开关量检测、限制判断、通信处理等功能;人机交互CPU则完成键盘处理、LCD显示、通信任务。该实验装置能够进行一系列的励磁实验,具有完备的实验培训功能;同时具有占地小、投资少、结构可靠、直观高效、应用广的特点。