2011-03-27 00:03 hehe 2011-03-27 00:04 ha !! 2011-03-27 00:04 thansk to Clifford Kelley, i confirm 2011-03-27 00:04 1). I'm using same compresion format (twoÂ Â 4 bits in a byte) 2011-03-27 00:05 2). Decimation is not needed, or can even be considered 2011-03-27 00:06 3). Byte orientation is bytewise 2011-03-27 00:06 Now i should take a look at theÂ Â correlation subroutine 2011-03-27 00:09 fyi osgps is the only "soft" correlator that dint ask me for SIMD :-) 2011-03-27 01:02 hello all 2011-03-27 01:03 hi 2011-03-27 01:03 roman? 2011-03-27 01:03 yes :) 2011-03-27 01:04 kristianpaul, do you also work on nanonote?) 2011-03-27 01:04 yup :-) 2011-03-27 01:04 I wanted to ask, does anyone know if there are Desktop PC (nettop?) available, which would use the XBurst SoC 2011-03-27 01:05 i think there are 2011-03-27 01:05 but not freed 2011-03-27 01:05 I remenber tuxbrain have one? 2011-03-27 01:08 rm: ie http://ur1.ca/3oj1r 2011-03-27 01:08 but i dont remenber if is same as one from tuxbrain 2011-03-27 01:09 I do not see such a thing at tuxbrain 2011-03-27 01:09 kristianpaul, I mean not netbook 2011-03-27 01:09 btw there are other people from russia here 2011-03-27 01:10 rm: ah sorry, what you mean then? 2011-03-27 01:10 ah nettop 2011-03-27 01:10 but a box that would only connect to external monitor+keyboard+mouse 2011-03-27 01:10 hmm 2011-03-27 01:10 dunno :/ 2011-03-27 01:11 may be ask ingenic directly? 2011-03-27 01:11 maybe 2011-03-27 01:11 e.g. see this one: http://www.genesi-usa.com/products/efika 2011-03-27 01:12 but that one is on a different CPU, not ingenic 2011-03-27 01:12 and it uses a proprietary GPU 2011-03-27 01:12 requiring either 'many megabytes' of proprietary code, or using just the fbdev 2011-03-27 01:13 he, well ingenic is not very about his video aceleration in his soc either ;) 2011-03-27 01:14 heh 2011-03-27 01:14 and our yeeloong doesn't *have* any acceleration to begin with 2011-03-27 01:14 so no problem here :D 2011-03-27 01:14 ;-) 2011-03-27 01:15 ok, I'll idle here for a bit, while I'll go get some sleep 2011-03-27 01:15 sure 2011-03-27 01:15 you are wellcome ! 2011-03-27 01:15 bye :) 2011-03-27 01:15 bye 2011-03-27 01:16 ha,!! first time osgps run and seems to analize something :D 2011-03-27 01:20 rm: if you want a more close free cpu, you can buy a Milkymist One ;) 2011-03-27 01:21 also it have vga out, mouse and keyboard if you need it :-) 2011-03-27 01:43 kristianpaul and others: how difficult to port Nanonote system to http://ur1.ca/3oj1r maybe ignoring wifi at first 2011-03-27 01:44 dunno 2011-03-27 01:44 rm the Seagate Dockstar (no longer manufactured) use Marvel SOC (ARM) has good linux support and is cheap(!!) 2011-03-27 01:44 1 year more?.. 2011-03-27 01:45 same as nanote if you have similar people behind the effort 2011-03-27 01:47 moment, a sample rate is defined by a TCXO.. 2011-03-27 01:47 ?Â¿ 2011-03-27 01:48 in Mhz and not in MSPS.. 2011-03-27 01:52 hmm sample clock 2011-03-27 01:52 thats sound better 2011-03-27 01:52 sample rate clock 2011-03-27 05:24 DocScrutinizer: he :-) welcome back! 2011-03-27 05:25 o/ :-D 2011-03-27 05:35 DocScrutinizer: heya, been a long time ! :) 2011-03-27 05:36 yeah, adore my uptime. The channel is still on autojoin 2011-03-27 05:37 wow, then it's mightly long indeed :) 2011-03-27 05:38 07:34amÂ Â up 185 days 15:07 2011-03-27 05:39 feels like I never moved my fat arse outa this seat since 2011-03-27 05:39 s/fat/skinny/ 2011-03-27 05:40 started skinny, now it must be too fat to move. do you have acquired moons already ? :) 2011-03-27 05:41 the pizza service here is abysmal, so no chance to grow fat(ter) while watching this idiotic LCD 2011-03-27 05:58 sighs when reading "gta04/diversity" in http://lists.openmoko.org/pipermail/openmoko-kernel/2008-June/002987.html 2011-03-27 06:10 DocScrutinizer: better read the tail-between-the-legs statement that "you can't 'make' hardware" and then see how far we've come already 2011-03-27 06:12 who stated that? 2011-03-27 06:13 and who's "you"? ;-D 2011-03-27 06:14 DocScrutinizer: sean had a presentation on openmoko scheduled for i think it was just after the first bloodletting. at a conference in switzerland, if i remember right. and there he made a statement in that sense. i probably got the wording wrong, though. 2011-03-27 06:15 aah, by "you" he meant OM mgmt ;-P 2011-03-27 06:15 I.E. self() 2011-03-27 06:17 with the implied assertion of universality. it's all Kant in a way ;-) 2011-03-27 06:17 it's never been the 'making' that's the problem. Always the 'marketing' though 2011-03-27 06:18 naw, marketing must have been easy, with all the hype surrounding openmoko. that was really incredible. wish we had half that for qi-hw. 2011-03-27 06:19 qi-hw is missing the intriguing topic of "smartphone" 2011-03-27 06:19 oh, today it wouldn't get so much interest either 2011-03-27 06:19 well, maybe qi is ahead of time, next buzzword been "tablet" 2011-03-27 06:19 :-D 2011-03-27 06:20 yeah. let's make nanonote and milkymist the next big thing after the tablet 2011-03-27 06:21 wearables - if I may dare a prophecy 2011-03-27 06:21 that may not be a bad guess. we're certainly heading this way. 2011-03-27 06:22 qi should be at the exactly right location for this enterprise. Isn't all western clothing manufactured in far east? (yeah, or Bangladesh) 2011-03-27 06:24 wherever it is, the next qi-hw representative ain't far ;-) 2011-03-27 06:24 lol 2011-03-27 06:24 Qi-HW, Berlin London, New York, Taipei, Bangalore 2011-03-27 06:25 it gives me the chills though that i'd be the closest representative for antarctica. well, until rafa comes back 2011-03-27 06:25 barcelona, colombia, ... 2011-03-27 06:26 seems even 'big players' only have EMEA, America, Asia 2011-03-27 06:27 we don't seem to have much coverage in africa and au/nz either, though 2011-03-27 06:28 no coverage in Ozz? how's that? 2011-03-27 06:30 quite unusual, I'm always amazed how many users are from there 2011-03-27 06:30 curses missing regex grep on userlist of IRC client 2011-03-27 06:31 o/ roh 2011-03-27 06:31 dunno. just haven't noticed anyone from down under 2011-03-27 06:32 DocScrutinizer: i think kyak is now the official IRC bot enhancer :) 2011-03-27 06:33 aah, you think like 2011-03-27 06:33 qi-bot: seen *au* 2011-03-27 06:34 has a nice ring to it, no ? 2011-03-27 06:35 hihi cttv tests RL-twitter, with megaphone down in the streets. Strange, it doesn't work 2011-03-27 06:35 anyway, time for me to crash for a bit. had a busy day. 2011-03-27 06:35 enjoy 2011-03-27 06:35 time for 12648430Â Â 2011-03-27 06:35 here 2011-03-27 06:36 (I'd love to design a few wearables together with qi-hw :-D ) 2011-03-27 06:49 meh, qi-bot is quite uncommunicative 2011-03-27 07:51 :) 2011-03-27 07:54 erp ? 2011-03-27 08:34 kyak: nice :-D 2011-03-27 08:36 kyak: the plan however was to find australian users in this chan. Seems it's not exactly simple to establish that using the !seen *xy* cmd 2011-03-27 08:41 kyak: of course I tried "help" (plus a few others) in a /query qi-bot, which resulted in [2011-03-27 08:46:16] meh, qi-bot is quite uncommunicative 2011-03-27 08:42 [So 27. MÃ¤rz 2011] |[08:45:15] | help 2011-03-27 08:42 [So 27. MÃ¤rz 2011] |[08:45:22] | ? 2011-03-27 08:42 [2011-03-27 10:33:53] ... All commands can sent to me in pm without "!" prefix.-- 2011-03-27 08:43 I.E. this isn't exactly true, 'help' doesn't work this way 2011-03-27 08:45 DocScrutinizer:Â Â (wearables) Yes!, also very in line with Arduino next move :), David Cuartielles one of his founders, has also near to publish a book about it :) , so some atmegas arround jacket and trousers and a brain/hmi based on qi-hw is not really a bat a idea at all 2011-03-27 08:50 tuxbrain: :-D 2011-03-27 08:53 I'm more interested in the 'embeeded' (enweaved) things though, not the hmi/mmi 2011-03-27 08:54 ideally there's no such thing like a dedicated device for mmi. Just a 'service terminal' you hook up at home, to configure things 2011-03-27 09:06 DocScrutinizer: and why not configure it directly on the ankward of you foreaarm with a wearable screen that make you able to do so on the go , and with an 6lowpan that make you able to even configure it with your desktop computer without need to plug anything? :) 2011-03-27 09:08 or even better a cute light glasses to view and reserve the forearm for control/typing :) 2011-03-27 09:16 tuxbrain: yeah, of course. 2011-03-27 09:17 reminds me to file a few patents for my special glasses 2011-03-27 09:19 damn, that's where hw-development starts to get annoyingly expensive and unfeasible for a mere mortal 2011-03-27 09:19 special build of LCDs etc 2011-03-27 09:21 possibly even non-standard LC itself (not that you'd be able to get such thing like "standard" LC in small quantities) 2011-03-27 09:22 not to mention the glass electrodes coated with transparent conductive material 2011-03-27 09:23 spacers, whatnot 2011-03-27 09:24 DocScrutinizer: --^ :) 2011-03-27 09:26 nice 2011-03-27 09:27 scribbles on a virtual postit note "install eggdrop" and sticks that note to some part of his neocortex 2011-03-27 09:47 DocScrutinizer: please translate all above tech mambo jambo to an aprox amount. 2011-03-27 09:48 and if you have a abstract of that idea please let me take an eye. 2011-03-27 09:49 the simple bottom line: you actually can not build your own LCD 2011-03-27 09:51 (as you'd need e.g. for a shutter glasses' glasses, or would you like to use goggles with two pcs 2.4" LCDs as glasses?) 2011-03-27 09:53 Doc I'm a little bit lose on the vocabulary shutter? googgles? any let me search to see what you mean 2011-03-27 10:02 ok shutter understood wide range of geekosity vs stilish form this http://i00.i.aliimg.com/photo/v0/350983940/3D_Shutter_Glasses_3D_Active_Glasses.jpg to this http://zapp5.staticworld.net/howto/graphics/211361-panasonis-shutter-glasses_180.jpg 2011-03-27 10:05 googgles : mmm maybe something more integrate that this but with same spirit whould be no so bad idea http://f00.inventorspot.com/images/smartgogglesJSH_228x342.jpg 2011-03-27 10:05 yeah, and the point is you can't built the needed shutter LCDs yourself. I'd have some rather smart (IMHO) ideas regarding combining shutter function, HMD (actual content mirrored in to the glasses via micro projector), and some ultra-geeky sunglasses function like selective dimming. 2011-03-27 10:06 ~dict goggles 2011-03-27 10:06 oops, no ibot here 2011-03-27 10:06 !dict goggles 2011-03-27 10:06 thought as much 2011-03-27 10:07 tuxbrain: yeah, the last one is what my idea is based on 2011-03-27 10:08 e.g. camera can detect direction of sun and selectively dim out that area in the goggle's shutter glasses 2011-03-27 10:09 you can have true alpha channel in content mirrored into your view 2011-03-27 10:10 get the picture? 2011-03-27 10:10 I agree to , we can found a way that it can be addapted to existent glasses too? maybe without some ot the fancy fucntions like auto dark glass, just show me info device? 2011-03-27 10:47 I have found the page of the guy of the googles :) http://www.isi.t.u-tokyo.ac.jp/~nakayama/index_en.htm 2011-03-27 10:48 I'm thinking to aks him if there is more techinical information about the hardware he uses, DocScrutinizer you think it worth the meaning? 2011-03-27 10:52 sure 2011-03-27 10:52 I'm *very* interested in HMDs 2011-03-27 10:52 and shutter goggles, and related topics 2011-03-27 10:56 wow, that's incredible: http://www.isi.t.u-tokyo.ac.jp/~nakayama/annotation_en.htm 2011-03-27 11:11 the last one, scotland that is awesome (of course if is a scottish landscape :P) 2011-03-27 11:45 hi 2011-03-27 11:47 tuxbrain: http://www.inition.co.uk/inition/pdf/EG-7b.pdf 2011-03-27 11:47 hard to find good links, even harder to find vivid sites actually selling 2011-03-27 11:56 >>wearable computing: Wearable computing hopes to shatter this myth of how a computer should be used. A person's computer should be worn, much as eyeglasses or clothing are worn, and interact with the user based on the context of the situation. With heads-up displays, unobtrusive input devices, personal wireless local area networks, and a host of other context sensing and communication tools, the wearable computer can act as an 2011-03-27 11:56 intelligent assistant, whether it be through a Remembrance Agent, augmented reality, or intellectual collectives. (from the MIT Wearable Computing WWW page)<<Â Â hardly anything to add - from http://www.hitl.washington.edu/scivw/visual-faq.html 2011-03-27 11:58 does the arduino lilipad count in wearable computing? 2011-03-27 12:06 http://www.vrealities.com/addvisor150.html not quite stylish, but meh. It's for the operation principles, for stylish see prev link 2011-03-27 12:09 (the inition glasses) 2011-03-27 12:38 GNUtoo|bug20: lilipad I think yes it is :) 2011-03-27 12:41 bbs 2011-03-27 12:42 bt kbd issues 2011-03-27 13:08 hi 2011-03-27 13:18 nice post by xiangfu: http://www.openmobilefree.net/?p=875 2011-03-27 13:22 DocScrutinizer: http://www.cs.vassar.edu/people/priestdo/wearables/top#linux_on_the_sony_vgn-ux280p 2011-03-27 13:28 What is the amount to create a free production Microoptical EG7 device?!!! 2011-03-27 13:28 tuxbrain ha 2011-03-27 13:36 hmm, i need more data but i think i got the peak for two PRN codes.. 2011-03-27 13:43 tuxbrain: you need the display, the optics, the case. The rest is pfff 2011-03-27 13:44 hmm, i need to fix the offset frequency for my particular clock.. so i need will need automate this calibrationa at some point.. 2011-03-27 13:45 How do usually is measured a clockÂ Â freq error?.. 2011-03-27 13:46 looks at wpwrak 2011-03-27 13:46 I can put the scope there and see what freq i get, but dunno if this is the best procedure 2011-03-27 13:46 hi DocScrutinizer :-) 2011-03-27 13:51 gets an update almanac 2011-03-27 13:57 hi kristianpaul 2011-03-27 13:57 see man hwclock and man /etc/adjtime 2011-03-27 13:58 you can't check clock freq base with a scope 2011-03-27 13:59 what device i need? 2011-03-27 13:59 the clock itself and a reference :-D 2011-03-27 14:00 the way hwclock is doing that is the most accurate way to determine the actual exact freq of the clock osc 2011-03-27 14:01 except if you're talking about sth like 20% off 2011-03-27 14:01 which I guess is impossible you'll ever run into such a problem 2011-03-27 14:02 the clock i need measure is a TCXO for a gps L1 rf front end 2011-03-27 14:02 uhh, no idea 2011-03-27 14:02 use a counter, connect it and probe for one hour 2011-03-27 14:02 but according to the datasheet this is +- 1.5ppm 2011-03-27 14:02 okay 2011-03-27 14:03 *exactly* one hour. Then device the counts / 3600 2011-03-27 14:03 devide* 2011-03-27 14:05 as making sure the *exactly* one hour prerequisite might get tricky, you may want to probe for exactly 1 day, maybe 1 week ;-D 2011-03-27 14:05 so an inaccuracy of 0.5s for the probing timespan has less impact 2011-03-27 14:06 doesn't the TCXO of GPS-receivers automatically calibrate to the GPS clock, like GSM phones do as well? 2011-03-27 14:06 some frequency counters have a GPS receiver as clock reference 2011-03-27 14:06 yeah, afaik it's supposed to do 2011-03-27 14:07 steve|m: yes, mine said +- 1.5ppm, but for the *front-end*, the receiver, well thats my job ;) 2011-03-27 14:08 what's the frequency of the tcxo you're talking about? it's something odd, right? 2011-03-27 14:09 10.52? 2011-03-27 14:10 no 2011-03-27 14:10 16.384 Mhz 2011-03-27 14:10 DSB321SDA_ZJ01092 2011-03-27 14:11 hm, too bad.. I used a phone and osmocom-bb to calibrate my Racal GSM Test Set, by 'stealing' the clock of a commercial cell 2011-03-27 14:12 had both clocks on my scope, triggered on one, and calibrated it until the second waveform wasn't moving anymore ;) 2011-03-27 14:13 hehe 2011-03-27 14:13 steve|m: cool 2011-03-27 14:13 yup 2011-03-27 14:15 do commercial gps receivers have the same frontend clock you could tap? 2011-03-27 14:17 i have one with sirf chip i dunno 2011-03-27 14:17 steve|m: even easier would've been to use one for X and the other for Y 2011-03-27 14:17 then calibrate to get a lissajous that doesn't move 2011-03-27 14:17 true 2011-03-27 14:18 well, it kept moving a bit back and forth, was quite funny.. 2011-03-27 14:18 everytime when the AFC-DAC was updated 2011-03-27 14:19 http://de.wikipedia.org/w/index.php?title=Datei:Lissajous.gif&filetimestamp=20070904162707 2011-03-27 14:33 tuxbrain: http://www.vrealities.com/vrprost.html 10.500.- hehe 2011-03-27 14:38 DocScrutinizer: (lissajous) nice ! finally a good use for xy mode :) 2011-03-27 14:40 kristianpaul: if you can just count cycles, you can synchronize with ntp. ntp has very little drift but there's a possibly large random-ish offset when you take the sample. a few ppm for a measurement period of ~1h should be feasible, though. 2011-03-27 14:40 wpwrak: yeah, but still you need a reference that's not too far off from what you try to calibrate 2011-03-27 14:41 DocScrutinizer: only if you're in a hurry :) 2011-03-27 14:41 e.g. here in EU we got dcf77 which is a 77.5(?)kHz RF frequency and time normal 2011-03-27 14:41 yeah, dcf77 is nice 2011-03-27 14:41 you can't get useful lissajous with that, for e.g 16Mhz 2011-03-27 14:42 ah, sure. i wasn't talking about lissajous. i was thinking of counting cycles over one ntp hour, then see how many you got, and tune accordingly. repeat until you either have it right or until you declare defeat in before overwhelming temperature drift :) 2011-03-27 14:43 :-D 2011-03-27 14:46 I wish nanonote would have built-in wifi :/ 2011-03-27 14:52 wpan ! wpan ! wpan ! :) 2011-03-27 14:54 gigs thru his boxes in attic to find the WPAN AP 2011-03-27 14:54 who said jehova? ;) 2011-03-27 14:55 rm, wpwrak already develop an copyleft alternative to clasic wifi (wpan) 2011-03-27 14:56 DocScrutinizer: you have to look in those labeled "future" 2011-03-27 14:56 what's the name of those pills? 2011-03-27 14:59 or bluetooth (but bluetooth is ewwww) 2011-03-27 14:59 and also highly proprietary, no 2011-03-27 15:00 point is, if it had wireless communication out of the box, it'd be an order of magnitude more attractive/useful 2011-03-27 15:00 that's the point 2011-03-27 15:01 I am watching videos at https://www.tuxbrain.net/shop/product_info.php?cPath=28&products_id=99&osCsid=mira7ic2cjqc8v117lpl5sqme7 2011-03-27 15:01 (i am not a nanowar fan, just some I found) 2011-03-27 15:01 also highly proprietary as wifi, same our lemote have ;) 2011-03-27 15:01 suggests a few "embedded USB bays" for future devices of qi-hw 2011-03-27 15:01 kristianpaul, afaik bluetooth requires licensing fee per device sold 2011-03-27 15:01 does wifi? 2011-03-27 15:02 I always thought that's why most cheap wireless mice/keyboards use their own thing instead of bluetooth 2011-03-27 15:02 i dunno, ask to the wifi chip manufacturer 2011-03-27 15:03 bu i guess it need at least to pay for the MAC addressing same as Ethernet 2011-03-27 15:03 kristianpaul: the MAC is cheap. and you need it for almost anything 2011-03-27 15:04 kristianpaul: well, you actually don't get a MAC but an OUI. then you manage your own MAC address space under that OUI 2011-03-27 15:05 kristianpaul: plus, they money has already been spent: http://en.qi-hardware.com/wiki/IEEE_OUI_assignments 2011-03-27 15:09 btw this coming wpan linux support hopefully will allo to hookup a wpan to my linksys router isnt? same as with the RFM12B module 2011-03-27 15:09 wpwrak: heh, it's already in the wireshark OUI-database as well :) 2011-03-27 15:09 haha 2011-03-27 15:11 kristianpaul: does your linksys have usb host ? 2011-03-27 15:12 kristianpaul: or at least spi / gpios for bit-banging ? 2011-03-27 15:12 i WILL *not* use USB :-D 2011-03-27 15:12 wpwrak: yes spi :-) 2011-03-27 15:12 who "*not*" usb ? 2011-03-27 15:13 s/who/why/ 2011-03-27 15:13 I consider un necesary 2011-03-27 15:13 for the troughput you may get 2011-03-27 15:14 (spi) then you'll be able to hack an atben to do your bidding :) well, you'll also need a few more gpios for control signals. reset (semi-optional), standby (optional), interrupt 2011-03-27 15:14 hmm 2011-03-27 15:14 the advantage of usb would be that you could just plug in an atusb :) 2011-03-27 15:14 thast true 2011-03-27 15:15 (and increase tuxbrain sales in the process :) 2011-03-27 15:15 oh sure :-) 2011-03-27 15:21 what games would you suggest 2011-03-27 15:21 to try on "simple" devices like nanonote (and for me right now on yeeloong) 2011-03-27 15:25 jlime muffinman ships nice games 2011-03-27 15:35 there is also a #jlime channel in wich you can get better recomendations about games ;-) 2011-03-27 15:35 dingux also use same Xbusrt SoC as nanonote and is a game console oriented device 2011-03-27 15:38 wpwrak: http://home.earthlink.net/~cwkelley/OSGPS_chapter_3.pdf (check page 11, nice graph about that old signmag discussion) 2011-03-27 15:48 DocScrutinizer: wow that was very very pricy!, I'm afraid the how much the beautiful Microoptical EG7 can cost 2011-03-27 15:48 yeah 2011-03-27 15:49 wpwrak: atusb on wifi AP, yummi yummi 2011-03-27 15:49 wpwrak kristianpaul, that means instant inet access on NN :) 2011-03-27 15:49 at those hefty price tags I actually start to rethink my position about "you can't build your own LCD" 2011-03-27 15:50 hell, for 10k$ I can get one handmade to my specs 2011-03-27 15:51 I guess selling two of those per week actually is a working business model 2011-03-27 15:53 also I'd like to investigate about usability of DLPs for this purpose 2011-03-27 15:53 tuxbrain: exactly :-) 2011-03-27 15:53 fritzbox 2011-03-27 16:09 kristianpaul: nice description ! too bad it gets a little sketchy right after page 11 2011-03-27 18:03 wpwrak: this should fill in the gap :-) http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html 2011-03-27 18:05 DocScrutinizer: great link! 2011-03-27 18:06 oh, nice graphs http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html 2011-03-27 18:06 ergg http://www.colorado.edu/geography/gcraft/notes/gps/gif/halfcorr.gif 2011-03-27 18:13 http://www.colorado.edu/geography/gcraft/notes/gps/gif/signals.gifÂ Â http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html 2011-03-27 18:13 grrr 2011-03-27 18:14 http://www.colorado.edu/geography/gcraft/notes/gps/gif/gdop.gif 2011-03-27 18:15 http://www.colorado.edu/geography/gcraft/notes/gps/clkcor.html :-D 2011-03-27 18:15 I should recommend this one http://www.colorado.edu/geography/gcraft/notes/gps/gps.html rather than the *_f.html framed one 2011-03-27 18:16 http://www.colorado.edu/geography/gcraft/notes/gps/ephxyz.html 2011-03-27 19:28 DocScrutinizer: one question is a bit more basic: what do the Q/I components really signify ? 2011-03-27 19:28 DocScrutinizer: it's more clear in the FFT. but in the time domain, what does the imaginary part really mean ? 2011-03-27 19:34 wpwrak: where? 2011-03-27 19:36 usually iirc the I component is the 90Â° shifted part so basically the phase 2011-03-27 19:36 DocScrutinizer: (where) for example in the chip kristianpaul uses. there, he gets Q and I 2011-03-27 19:37 DocScrutinizer: and i have the same in the USRP. so i'm kinda curious what this really means, too :) 2011-03-27 19:38 sorry, I can't follow. is that a signal, or what? 2011-03-27 19:38 DocScrutinizer: (phase) yes, i understand that for the frequency domain. but what does it mean in the time domain ? how does even the concept of a phase enter in individual samples ? 2011-03-27 19:38 NFC 2011-03-27 19:39 DocScrutinizer: my DSP book explains the complex time domain also more or less in terms of the frequency domain, so this doesn't really help 2011-03-27 19:42 sorry, I never seen any I and/or Q on e.g. an AD converter 2011-03-27 19:42 I/Q is part of a downconvertion 2011-03-27 19:42 so I can't comment on whatever you're asking me 2011-03-27 19:43 wpwrak: http://zone.ni.com/devzone/cda/tut/p/id/4805 2011-03-27 19:48 s/downconvertion/serialization 2011-03-27 19:48 but i'm not sure of this at all 2011-03-27 20:29 http://paste.debian.net/112162/ 2011-03-27 20:45 ADC gives two bit sign/mag data 2011-03-27 20:46 Downcoveter / SerializerÂ Â provides I/Q