Search found 14 matches

by itsar
Tue Mar 27, 2018 3:23 am
Forum: Boards: nut4nt, nut4se, nut2ad
Topic: AGC gain and ADC bits in NUT4NT
Replies: 3
Views: 790

Re: AGC gain and ADC bits in NUT4NT

Dear Micaela, Thank you for patience about delay! I think, you are right about the number of levels, but it is not so significant Big thing is signal gain to noise gain ratio. We know that signals are correlated in all channels, so the signal gain will be 12 db. If noises are uncorrelated, summing g...
by itsar
Sun Mar 25, 2018 11:37 pm
Forum: Boards: nut4nt, nut4se, nut2ad
Topic: AGC gain and ADC bits in NUT4NT
Replies: 3
Views: 790

Re: AGC gain and ADC bits in NUT4NT

Dear Micaela, Thank you for asking and using our board! Sorry for delay, you question is the first one for months (thanks to Maurizio for kicking me). It is not possible to allocate all 8 bits of ADCs to one channel. If you need to increase the number of bits, you can sum all channel's signals. The ...
by itsar
Tue Aug 29, 2017 2:44 am
Forum: Signal processing and Software
Topic: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2
Replies: 14
Views: 3914

Re: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2

Also about Beidou. I can not test samples for Beidou. Is there any open source Beidou software receiver?

Igor Tsarik
by itsar
Tue Aug 29, 2017 2:42 am
Forum: Signal processing and Software
Topic: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2
Replies: 14
Views: 3914

Re: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2

We will check and recapture signals if needed. But I can not test samples for IRNSS. Is there any open source IRNSS software receiver?

We are also working on 16 bit capturing but do not have a hardware jet.
by itsar
Wed Aug 02, 2017 2:54 am
Forum: Signal processing and Software
Topic: Strange behavior with Amungo Nut4nt
Replies: 8
Views: 2356

Re: Strange behavior with Amungo Nut4nt

Hello Micaela!

I'm sorry for the late answer. We had a bug with even starts and it was fixed about two months ago.
Please update the software and firmware and try again. If this bug appears again let us know please.

Igor Tsarik
Amungo Navigation
by itsar
Wed Apr 19, 2017 3:36 am
Forum: Signal processing and Software
Topic: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2
Replies: 14
Views: 3914

Re: GNSS Signals: GPS L1 and L2, GLONASS L1 and L2

Hello!

Sorry for late reply. We will make more samples for you soon.

Igor Tsarik
by itsar
Tue Dec 27, 2016 12:26 pm
Forum: Signal processing and Software
Topic: Antenna array vs jamming
Replies: 2
Views: 2846

Re: Antenna array vs jamming

Oh, very good discussion about this experiment - https://www.linkedin.com/groups/13506339
by itsar
Mon Oct 10, 2016 6:16 am
Forum: Boards: nut4nt, nut4se, nut2ad
Topic: Tracking application for Canoe Polo
Replies: 2
Views: 1488

Re: Tracking application for Canoe Polo

Hello! Right place to ask! It will be difficult to make simple RTK because of large changes of roll of boats. The phase center of antenna significantly degrades near antenna horizont. You can track it by hyroscope but conventional receiver with raw output can not correct measurements in real time. I...
by itsar
Fri Sep 23, 2016 6:39 am
Forum: Boards: nut4nt, nut4se, nut2ad
Topic: Raw signal from nt1065
Replies: 1
Views: 1098

Re: Raw signal from nt1065

Hello! Some people from conventional SDR community ask for posibility of using of the NT1065 for receiption of all-other (non-navigation) signals. The NT1065 seems to be first in the world four channel rf-to-bits single chip solution, not only satellite navigation but in general. SDR people wish to ...

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