Re: [Discuss-gnuradio] [4]

2016-01-20 Thread Iluta V
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Re: [Discuss-gnuradio] [4]

2016-01-20 Thread Clifford Kelley
http://goo.gl/MLiNph?254=ehinawu&4313&ysaceqi==77908040 ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Marcus Müller
Hi Christopher, On 01/03/2015 09:56 PM, Christopher Friedt wrote: > On Sat, Jan 3, 2015 at 1:38 PM, Marcus Müller > wrote: >> Then: If I understand you correctly, what you have is an input stream of >> unsigned (32 bit)ints, each int containing exactly one bit of information: >> 0x, 0x00

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
On Sat, Jan 3, 2015 at 1:38 PM, Marcus Müller wrote: > Then: If I understand you correctly, what you have is an input stream of > unsigned (32 bit)ints, each int containing exactly one bit of information: > 0x, 0x0001, 0x0001, 0x, and so forth. > This format is especially w

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
On Sat, Jan 3, 2015 at 1:38 PM, Marcus Müller wrote: > as you noted, this block has a fixed relation between in- and output; > thus, you can use the sync_interpolator [1] to get rid of the need to > write your own forecast and calling consume; you'll need to override > work instead of general_work

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Marcus Müller
Hi Christopher, as you noted, this block has a fixed relation between in- and output; thus, you can use the sync_interpolator [1] to get rid of the need to write your own forecast and calling consume; you'll need to override work instead of general_work, which is more comfortable. With the set_out

Re: [Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
I'll definitely try the Pack K Bits block - that might just do it! ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] 4-to-32 bit symbol mapper block

2015-01-03 Thread Christopher Friedt
Hi list, I'd like to write a custom block that takes 1, 4-bit symbol and remaps it to 1, 32-bit symbol. Some code for a general_work() method is below [1], but it doesn't quite work yet. It isn't convolutional - i.e. the 4-bits of symbol k, do not overlap with the 4-bits of symbol k-1 - so it doe

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-13 Thread Jason Abele
On Fri, Sep 10, 2010 at 09:38:06PM -0400, Scott Storck wrote: > On Fri, Sep 10, 2010 at 5:11 PM, Jason Abele wrote: > > > On Fri, Sep 10, 2010 at 03:59:34PM -0400, Scott Storck wrote: > > > > > The other option that would work for me is connecting antenna 0 to WBX 0 > > and > > > connecting anten

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Scott Storck
On Fri, Sep 10, 2010 at 5:11 PM, Jason Abele wrote: > On Fri, Sep 10, 2010 at 03:59:34PM -0400, Scott Storck wrote: > > > The other option that would work for me is connecting antenna 0 to WBX 0 > and > > connecting antennas 1-3 to WBX 1 through a commutator to switch them at a > > sub-1 kHz freq

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Sylvain Munaut
If the signals you want to receive are sufficiently close to each other, you could tune the WBX in the middle and use two independent DDC to receive two signals with one WBX ... (I'm not mistaken ...) Cheers, Sylvain ___ Discuss-gnuradio mailing li

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Jason Abele
On Fri, Sep 10, 2010 at 03:59:34PM -0400, Scott Storck wrote: > Jason and Marcus, thanks for your responses. I was afraid that this was the > case. > > Is there a daughterboard out there (besides the BasicRX) that can support 4 > antennas on a single USRP? Just LFRX > > The other option that w

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Patrik Tast
robust machine. Tell us a little (alot) more about your attempts. Patrik - Original Message - From: Scott Storck To: Jason Abele Cc: discuss-gnuradio@gnu.org Sent: Friday, September 10, 2010 22:59 Subject: Re: [Discuss-gnuradio] 4 RX with 2 WBXs? Jason and Marcus,

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Scott Storck
Jason and Marcus, thanks for your responses. I was afraid that this was the case. Is there a daughterboard out there (besides the BasicRX) that can support 4 antennas on a single USRP? The other option that would work for me is connecting antenna 0 to WBX 0 and connecting antennas 1-3 to WBX 1 t

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Marcus D. Leech
I have a USRP and two WBX daughterboards. Is it possible to use 4 independent RX antennas (all tuned to the same frequency) with this hardware setup? Specifically, here's what I'm trying to achieve: Antenna 0 -> Side A WBX, RX/TX port -> ADC0 -> DDC0I Antenna 1 -> Side A WBX, RX2 port -> ADC1 -

Re: [Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Jason Abele
On Fri, Sep 10, 2010 at 12:04 PM, Scott Storck wrote: > I have a USRP and two WBX daughterboards.  Is it possible to use 4 > independent RX antennas (all tuned to the same frequency) with this hardware > setup? Scott, The WBX has only one (I/Q) receiver per daughterboard. The two Antenna ports

[Discuss-gnuradio] 4 RX with 2 WBXs?

2010-09-10 Thread Scott Storck
I have a USRP and two WBX daughterboards. Is it possible to use 4 independent RX antennas (all tuned to the same frequency) with this hardware setup? Specifically, here's what I'm trying to achieve: Antenna 0 -> Side A WBX, RX/TX port -> ADC0 -> DDC0I Antenna 1 -> Side A WBX, RX2 port -> ADC1 -> D

[Discuss-gnuradio] 4-bit quantization and rounding

2007-07-31 Thread eenrti
Hello I have built a lower-bit quantization scheme in the rx_bufffer.v using 4-bit samples, storing one byte for each clock sample (for both I and Q) and then filling up the 16-bit FIFO with another 8 bit value coming from the next clock sample. Whan I did some tests and plotted the results e