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Ladies and gentlemen, our "Wave"
Hi,This is a special post for me, there is just so much work behind it that I feel literally relieved :)Figure 1: Wave GNSS front-end.Luis and me went through a quantity of problems, but eventually...
View ArticleOpen source Software Defined Radio GPS receiver
Hello,Just a quick update to the people who are involved on gps-sdr.Here is a version that (as far as I am aware) compiles on Ubuntu Lucid (32 and 64 bits).And if you don't have any of NSL's GNSS data...
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A new adventure in GNSS
Hi,I am afraid nothing has happened on my GNSS blog for too long now, so I guess I should give some really big news this time ;)Well, I would love to write about my latest GNSS creation... but I am not...
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Skytraq s1315f-raw (under the magnifying lens)
Hi,Lately I have been working with one of the few mass market receivers which outputs raw observables: the Skytraq S1315F-RAW. The only other "low cost" alternative to it is the uBlox LEA-4T, LEA-5T,...
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The benefit of Glonass?
Another study I am carrying out is how much benefit the availability of Glonass satellites really brings. Low-cost dual constellation GPS-Glonass standalone receiver are starting to show up in the...
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Is SiRF really bringing back carrier phase?
Lately I have been witnessing people reporting about getting carrier phase from various SiRF GSD4e receivers, such as Navman and OriginGPS. There is a moltitude of SiRF IV receivers out there, and the...
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NVS08C-CSM, the first mass market receiver to track Galileo
I would like to report the great work done by NVS which -to my knowledge- is the first Company to produce a mass market single frequency four constellation receiver tracking Galileo.Figure 1: NVS...
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Processing Galileo
The first prototype of SdrNav20 is working these days to receive the Galileo signal in space.Figure 1: First SdrNav20 assembled prototype.Using a simple patch antenna, the first acquisition done using...
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Low cost RTK performance round-up
Having done quite a bit work since the first Yuan10 was built, I think it's time to write a small summary.I recently put up a navXperience 3G+C antenna that will serve as reference for all future RTK...
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Spring news in the GNSS and SDR domain
I have been following in the last few days interesting developments in the GNSS and SDR domain. 1. NV08C-CSM and dual constellation RAW measurements It's recent news that NVS has lifted the constraints...
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The GPS tracker to beat (smallest, lightest, and most durable)
Figure 0: Please read below.From the very early days of GPS snapshot technology has been proposed as a way of reducing power consumption and footprint of a radio positioning device. Some papers about...
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Full Galileo IOV
After a long wait, it was a pleasure this morning to record the full IOV constellation. Figure 1: Orbitron prediction of Galileo visibility this morning.The NV08C-CSM receiver with a R&D firmware...
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Fruit-Bat Tracking with Robin GPS Logger
I have recently received the results of an interesting experiment done with Robin, Cellguide's snapshot GPS tracker so I thought I should share it with the Community.Figure 1: Yes, a fruit batBecuase...
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Wrapping up 2013 GNSS facts
Well, it has indeed been quite a long time since I wrote here the last time.My personal situation has changed in such a way that it is hard to find the time to share my views and to comment your...
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R820T with 28.8 MHz TCXO
I recently looked around for tools to use as low cost spectrum scanners, being the objective frequency range 400 MHz to 1.7 GHz (incidentally, DVB-T and GPS).Of course rtl-sdr is an attractive option...
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GNSS carrier phase, RTLSDR, and fractional PLLs (the necessary evil)
A mandatory principle when processing GNSS -in order to have high accuracy carrier phase- is to have a well defined frequency planning. This entails knowing precisely how the Local Oscillator (LO)...
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Galileo RTK with NV08C-CSM hw 4.1
Being European I am often subject to skepticism about Galileo and compelled to justify its delays and usefulness. Explaining why Galileo is better and needed is beyond the scope of my blog but IMHO...
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At ION GNSS+ 2014
To whom it may happen to be in Tampa these days: I will also be around.Feel free to come and chat!
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A modern GNSS front-end
Earlier this year I had the occasion and privilege to be trying out a new front-end produced by NTLab, the NT1036. I thought it would be interesting to share this with the GNSS crowd.The kit arrived...
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Happy begin of 2016
2015 just passed. I don't write much here anymore as time has become a very precious resource and my job imposes tight limitations on what one can or cannot write on the web.The yearly update will...
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NT1065 review
So I finally came about testing the NT1065… apologies for the lack of detail but I have done this in my very little spare time. Also, I would like to clarify that I am in no way affiliated to...
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uBlox: Galileo, anti-jamming and anti-spoofing firmware
Just downloaded the firmware upgrade for flash-based M8 modules from uBlox.Flashed it in no time.The result of UBX-MON-VER is now:So checked Galileo in CFG-GNSS:Result :)Incidentally, there is a...
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Tribute to Prof. Kai Borre
Whilst attending the latest ION GNSS+ conference I had the confirmation that Prof. Kai Borre disappeared this Summer. He has been a very important reference to me, especially in the early stages of my...
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One year in review
As 2017 heads to the end, it calls for a retrospective. Which events characterized this year most? Both most prominent magazines in the domain (gpsworld.com and insidegnss.com) dedicate a piece of...
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Learning a bit about Beidou3 signals
I have pretty busy these last couple of years contributing to features and improvements to the Piksi Multi measurement engine, but during the Summer I managed to contribute to a blog post on the Swift...
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