I'll reiterate: what do you do tree account for real world channels? You
haven't told us *anything* about your transceiver aside from it using BPSK.
Best regards,
Marcus
Am 30. Mai 2015 20:00:51 MESZ, schrieb Anil Gaddam <gaddamani...@gmail.com>:
>I was not getting anything till now but lately I made some changes and
>now
>I am getting the output but its no where similar like the input
>signal.And
>about the constellation I am not able to get it anywhere near perfect.
>
>Thanks,Marcus
>On 30-May-2015 23:07, "Marcus Müller" <marcus.muel...@ettus.com> wrote:
>
>> I don't understand -- are you seeing nothing at all or are you seeing
>ISI?
>>
>> Again: what's your pulse shape? Does it fit in your channel
>bandwidth? Do
>> you fulfill the Nyquist ISI criteria?
>>
>> As you know, there's solid theory in why ISI occurs, why you need to
>limit
>> your signal's bandwidth and how you can counter it. What parts of
>these
>> considerations did you address with your transceiver system? You only
>say
>> you do bpsk, but doing symbol mapping is only part of the job that a
>> transceiver needs to do.
>>
>> Best regards,
>> Marcus
>>
>> Am 30. Mai 2015 17:53:25 MESZ, schrieb Anil Gaddam
><gaddamani...@gmail.com
>> >:
>>>
>>> I am not getting anything on the output that's the issue if at all
>I'm
>>> getting some output then I would think about matched filtering .
>>>
>>> Thanks,
>>> Marcus
>>> On 30-May-2015 21:16, "Marcus Müller" <marcus.muel...@ettus.com>
>wrote:
>>>
>>>> Hi,
>>>>
>>>> On any multipath channel there will be some isi. What do you do to
>>>> suppress that? What kind of filtering/pulse shaping do you do? Does
>matched
>>>> filtering solve your issue?
>>>>
>>>> Best regards,
>>>> Marcus
>>>>
>>>> Am 30. Mai 2015 15:12:26 MESZ, schrieb Anil Gaddam <
>>>> gaddamani...@gmail.com>:
>>>>>
>>>>> Hello everyone,
>>>>>
>>>>> I tried to implement bpsk system.I am successful with the
>transmission
>>>>> part but I am able to see the ISI when I am observing the
>constellation at
>>>>> the transmitter side. I tried to design the receiver side same as
>the
>>>>> transmitter but just the opposite way i.e, using block Psk demod
>and packet
>>>>> decoder, but I am not able to get anything on the receiver side.
>Can some
>>>>> one pls help me wid this.
>>>>>
>>>>> Regards,
>>>>> Anil Gaddam
>>>>>
>>>>> ------------------------------
>>>>>
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>>>>> Discuss-gnuradio@gnu.org
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>>>>>
>>>>>
>>>> --
>>>> Sent from my Android device with K-9 Mail. Please excuse my
>brevity.
>>>>
>>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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