Re: Problems with the Frequency Xlating FIR Filter
Also, after running python3, you'll likely need to run from gnuradio.filter import firdes before running the firdes.low_pass(... instruction. El 26/1/22 a las 15:27, Marcus Müller escribió: Hi Michelle, https://en.wikipedia.org/wiki/REPL : What Martin means is simply the Python language shell you get when you run `python3` in a console. Best regards, Marcus On 26.01.22 14:24, Michelle wrote: Good morning Martin, please can you explain to me what you mean by REPL? Thank you have a good day On 2022-01-25 05:04, Martin Braun wrote: Can you try running this in a REPL to see what the return value of firdes.lowpass(...) is? --M On Tue, Jan 25, 2022 at 2:03 AM Michelle wrote: hello, I'm using a FIR filter and I have the error : "Param - Taps(taps): Expression None is invalid for type'complex_vector'." my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, 25000,firdes.WIN_HAMMING ) samp_rate and frec_carrier are both variables in my graph. I don't understand why I have an error. Please could you tell me what I am doing wrong? Thank you. OpenPGP_signature Description: OpenPGP digital signature
Re: Problems with the Frequency Xlating FIR Filter
Hi Michelle, https://en.wikipedia.org/wiki/REPL : What Martin means is simply the Python language shell you get when you run `python3` in a console. Best regards, Marcus On 26.01.22 14:24, Michelle wrote: Good morning Martin, please can you explain to me what you mean by REPL? Thank you have a good day On 2022-01-25 05:04, Martin Braun wrote: Can you try running this in a REPL to see what the return value of firdes.lowpass(...) is? --M On Tue, Jan 25, 2022 at 2:03 AM Michelle wrote: hello, I'm using a FIR filter and I have the error : "Param - Taps(taps): Expression None is invalid for type'complex_vector'." my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, 25000,firdes.WIN_HAMMING ) samp_rate and frec_carrier are both variables in my graph. I don't understand why I have an error. Please could you tell me what I am doing wrong? Thank you. smime.p7s Description: S/MIME Cryptographic Signature
Re: Problems with the Frequency Xlating FIR Filter
Good morning Martin, please can you explain to me what you mean by REPL? Thank you have a good day On 2022-01-25 05:04, Martin Braun wrote: Can you try running this in a REPL to see what the return value of firdes.lowpass(...) is? --M On Tue, Jan 25, 2022 at 2:03 AM Michelle wrote: hello, I'm using a FIR filter and I have the error : "Param - Taps(taps): Expression None is invalid for type'complex_vector'." my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, 25000,firdes.WIN_HAMMING ) samp_rate and frec_carrier are both variables in my graph. I don't understand why I have an error. Please could you tell me what I am doing wrong? Thank you.
RE: Problems with the Frequency Xlating FIR Filter
Hi Michelle, If you are using a flowgraph from version 3.8 while running GRC with version 3.9, you may be having the problem described here: https://wiki.gnuradio.org/index.php?title=Porting_Existing_Flowgraphs_to_a_Newer_Version#From_3.8_to_3.9 --- Barry Duggan KV4FV https://github.com/duggabe On Mon, 24 Jan 2022 19:55:51 -0500, Michelle wrote: hello, I'm using a FIR filter and I have the error : "Param - Taps(taps): Expression None is invalid for type'complex_vector'." my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, 25000,firdes.WIN_HAMMING ) samp_rate and frec_carrier are both variables in my graph. I don't understand why I have an error. Please could you tell me what I am doing wrong? Thank you.
Re: Problems with the Frequency Xlating FIR Filter
Can you try running this in a REPL to see what the return value of firdes.lowpass(...) is? --M On Tue, Jan 25, 2022 at 2:03 AM Michelle wrote: > hello, > > I'm using a FIR filter and I have the error : "Param - Taps(taps): > Expression None is invalid for type'complex_vector'." > > my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, > 25000,firdes.WIN_HAMMING ) > > samp_rate and frec_carrier are both variables in my graph. > > I don't understand why I have an error. Please could you tell me what I > am doing wrong? > > > Thank you. > >
Problems with the Frequency Xlating FIR Filter
hello, I'm using a FIR filter and I have the error : "Param - Taps(taps): Expression None is invalid for type'complex_vector'." my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier, 25000,firdes.WIN_HAMMING ) samp_rate and frec_carrier are both variables in my graph. I don't understand why I have an error. Please could you tell me what I am doing wrong? Thank you.
