This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS1292R: 滤波问题

Part Number: ADS1292R
Other Parts Discussed in Thread: ADS1292

我的寄存器配置如下:

ADS1292_REG_CONFIG1,    0x02 //500SPS
ADS1292_REG_CONFIG2,    0b10100000
ADS1292_REG_LOFF,           0b00010000
ADS1292_REG_CH1SET,      0b01000000 //Gain 4
ADS1292_REG_CH2SET,      0b01100000 //Gain 12
ADS1292_REG_RLDSENS,   0b00101100
ADS1292_REG_LOFFSENS0x00
ADS1292_REG_RESP1,        0b11110010
ADS1292_REG_RESP2,        0b00000011
当我的采样率为125SPS时候,心电图是如下的:(使用了40Hz低通滤波)
但当我将采样率改为500SPS时,就看不出心电了(使用了40Hz低通滤波)
这是因为我的滤波函数设计的不合理还是别的原因?以上结果都是直接连接人体测量的。