Return to Question

I implemented basic bandpass filter using scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error

ValueError: Digital filter critical frequencies must be 0 <= Wn <= 1

which clearly makes sense.

Example:

• Centre frequency: 100Mhz
• Sampling frequency: 5 Mhz
• highcut: 102 Mhz

Clearly (highcut/nyq) > 1

I implemented basic bandpass filter using Scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error

ValueError: Digital filter critical frequencies must be $0 \le \omega_n \le 1$

which clearly makes sense.

Example:

• Centre frequency: $100\textrm{ MHz}$
• Sampling frequency: $5\textrm{ MHz}$
• Highcut: $102\textrm{ MHz}$

Clearly (highcut/nyq) > 1

I implemented basic bandpass filter using scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error "ValueError: Digital filter critical frequencies must be 0 <= Wn <= 1" which clearly makes sense.

Example:

• Centre frequency: 100Mhz
• Sampling frequency: 5 Mhz
• highcut: 102 Mhz

Clearly (highcut/nyq) > 1

I implemented basic bandpass filter using scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error

ValueError: Digital filter critical frequencies must be 0 <= Wn <= 1

which clearly makes sense.

Example:

• Centre frequency: 100Mhz
• Sampling frequency: 5 Mhz
• highcut: 102 Mhz

Clearly (highcut/nyq) > 1

I implemented basic bandpass filter using scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I implemented basic bandpass filter using scipy resource. But how to implement the same when signal is centred at non-zero centre frequency with centre frequency > sampling frequency.

I trying to implement bandpass filter as current code throws error "ValueError: Digital filter critical frequencies must be 0 <= Wn <= 1" which clearly makes sense.

Example:

• Centre frequency: 100Mhz
• Sampling frequency: 5 Mhz
• highcut: 102 Mhz

Clearly (highcut/nyq) > 1