# Skydel Discussion **URL:** https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md?page=3 [Latest](https://learn.safran-navigation-timing.com/latest.md) · [Categories](https://learn.safran-navigation-timing.com/categories.md) **Page:** 4 --- ## [GNSS satellites position/motion prediction](https://learn.safran-navigation-timing.com/t/gnss-satellites-position-motion-prediction/698)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 0\ **Last updated:** [June 23, 2022, 5:25pm UTC](https://learn.safran-navigation-timing.com/t/gnss-satellites-position-motion-prediction/698 "2022-06-23T17:25:01Z")
Dear Orolia Community, If you are wondering how Skydel defines and predicts the positions of GNSS satellites, this post is for you! It is indeed very simple. Skydel uses RINEX data stored by default to determine the po… --- ## [Control Skydel remotely](https://learn.safran-navigation-timing.com/t/control-skydel-remotely/682)
**Author:** [@Yona](https://learn.safran-navigation-timing.com/u/Yona)\ **Replies:** 2\ **Last updated:** [June 22, 2022, 5:35pm UTC](https://learn.safran-navigation-timing.com/t/control-skydel-remotely/682 "2022-06-22T17:35:41Z")
Is it possible to control Skydel remotely (via TCP/IP for example) from another PC? --- ## [Antenna pattern rate](https://learn.safran-navigation-timing.com/t/antenna-pattern-rate/675)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 0\ **Last updated:** [June 17, 2022, 5:34pm UTC](https://learn.safran-navigation-timing.com/t/antenna-pattern-rate/675 "2022-06-17T17:34:21Z")
Dear Orolia community, Do you know that Skydel updates the antenna pattern at a fast rate of 1000Hz (1ms) which is the operating latency of the Skydel engine. This rate will be applied for all parameters related to the … --- ## [U Blox M8 not Working with Custom Constellation as Supposed](https://learn.safran-navigation-timing.com/t/u-blox-m8-not-working-with-custom-constellation-as-supposed/665)
**Author:** [@mohdyaser](https://learn.safran-navigation-timing.com/u/mohdyaser)\ **Replies:** 7\ **Last updated:** [June 17, 2022, 2:48pm UTC](https://learn.safran-navigation-timing.com/t/u-blox-m8-not-working-with-custom-constellation-as-supposed/665 "2022-06-17T14:48:18Z")
In the last weeks been trying to Create LEO Constellation using this guide The constellation finally looks fine (Check screenshot 1) , but the UBlox M8 receiver is unable to determine the position(Check screenshot 2); Ho… --- ## [IMU Simulation](https://learn.safran-navigation-timing.com/t/imu-simulation/666)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 1\ **Last updated:** [June 15, 2022, 10:59pm UTC](https://learn.safran-navigation-timing.com/t/imu-simulation/666 "2022-06-15T22:59:57Z")
Dear Orolia community :slight\_smile: , Do you know that it is possible to test IMU (Inertial Measurement Unit) simulation with Skydel? Indeed, IMU simulation can be performed using the Plug-in SDK which is a must-have f… --- ## [Vehicule obstruction](https://learn.safran-navigation-timing.com/t/vehicule-obstruction/655)
**Author:** [@Yona](https://learn.safran-navigation-timing.com/u/Yona)\ **Replies:** 2\ **Last updated:** [June 15, 2022, 8:39pm UTC](https://learn.safran-navigation-timing.com/t/vehicule-obstruction/655 "2022-06-15T20:39:47Z")
I would like to simulate areas where my vehicle is blocked by a building during a simulation. What is the way to model this in Skydel? --- ## [Real-Time Performance graph](https://learn.safran-navigation-timing.com/t/real-time-performance-graph/654)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 0\ **Last updated:** [June 10, 2022, 4:07pm UTC](https://learn.safran-navigation-timing.com/t/real-time-performance-graph/654 "2022-06-10T16:07:44Z")
Dear Orolia Commmunity , Have you ever watched this video that explains how to track the latency of your simulation using the real-time performance graph, if not check it out here :point\_down:: You can al… --- ## [Skydel - Simulated Vehicle Location](https://learn.safran-navigation-timing.com/t/skydel-simulated-vehicle-location/651)
**Author:** [@mventresca](https://learn.safran-navigation-timing.com/u/mventresca)\ **Replies:** 1\ **Last updated:** [June 7, 2022, 9:25pm UTC](https://learn.safran-navigation-timing.com/t/skydel-simulated-vehicle-location/651 "2022-06-07T21:25:38Z")
How can I check Skydel for the current location of a simulated vehicle? --- ## [Location of satellite antennas](https://learn.safran-navigation-timing.com/t/location-of-satellite-antennas/650)
**Author:** [@Yona](https://learn.safran-navigation-timing.com/u/Yona)\ **Replies:** 1\ **Last updated:** [June 7, 2022, 6:13pm UTC](https://learn.safran-navigation-timing.com/t/location-of-satellite-antennas/650 "2022-06-07T18:13:54Z")
Hi, I have another question regarding the satellite receivers. How can I simulate the fixed motion of the satellite around the earth so that the antennas of the satellites are always facing the earth? Thanks --- ## [How do I update software?](https://learn.safran-navigation-timing.com/t/how-do-i-update-software/648)
**Author:** [@G-Man](https://learn.safran-navigation-timing.com/u/G-Man)\ **Replies:** 1\ **Last updated:** [June 7, 2022, 5:49pm UTC](https://learn.safran-navigation-timing.com/t/how-do-i-update-software/648 "2022-06-07T17:49:34Z")
It has been a while since I updated software. What are the steps to do this? --- ## [TLE files](https://learn.safran-navigation-timing.com/t/tle-files/649)
**Author:** [@Yona](https://learn.safran-navigation-timing.com/u/Yona)\ **Replies:** 1\ **Last updated:** [June 7, 2022, 5:23pm UTC](https://learn.safran-navigation-timing.com/t/tle-files/649 "2022-06-07T17:23:03Z")
Hi, I have a general question. Does Skydel automatically update TLE files for GNSS satellite constellations? --- ## ["Creating LEO Constellations with Skydel" Tutorial Questions](https://learn.safran-navigation-timing.com/t/creating-leo-constellations-with-skydel-tutorial-questions/623)
**Author:** [@mohdyaser](https://learn.safran-navigation-timing.com/u/mohdyaser)\ **Replies:** 4\ **Last updated:** [June 2, 2022, 4:03pm UTC](https://learn.safran-navigation-timing.com/t/creating-leo-constellations-with-skydel-tutorial-questions/623 "2022-06-02T16:03:52Z")
Regarding the Creating LEO Constellations with Skydel tutorial, there are a few steps that are not very clear for me. At the part 1.3.3.b Leo Sat signal definition. Instructions say to “In the window that appears, selec… --- ## [Scintillation / Timing Accuracy](https://learn.safran-navigation-timing.com/t/scintillation-timing-accuracy/598)
**Author:** [@mventresca](https://learn.safran-navigation-timing.com/u/mventresca)\ **Replies:** 1\ **Last updated:** [May 4, 2022, 3:23pm UTC](https://learn.safran-navigation-timing.com/t/scintillation-timing-accuracy/598 "2022-05-04T15:23:15Z")
Customer Question: I was able to simulation a scintillation event using Skydel API! The only thing I would maybe like to improve on is the timing accuracy with which my python script sends commands to the simulation eng… --- ## [How to track GPS-L2C signal with a receiver?](https://learn.safran-navigation-timing.com/t/how-to-track-gps-l2c-signal-with-a-receiver/595)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 0\ **Last updated:** [April 29, 2022, 10:28am UTC](https://learn.safran-navigation-timing.com/t/how-to-track-gps-l2c-signal-with-a-receiver/595 "2022-04-29T10:28:54Z")
You’ve done a Skydel simulation with your L2C signal only and you can’t wait to track it. You connect the RF output to your favorite commercial GPS receiver and notice that the receiver does not receive any signal. The… --- ## [Issue with Installing Skydel on Windows 11 OS](https://learn.safran-navigation-timing.com/t/issue-with-installing-skydel-on-windows-11-os/591)
**Author:** [@hongzhaozheng](https://learn.safran-navigation-timing.com/u/hongzhaozheng)\ **Replies:** 3\ **Last updated:** [April 29, 2022, 10:31am UTC](https://learn.safran-navigation-timing.com/t/issue-with-installing-skydel-on-windows-11-os/591 "2022-04-29T10:31:26Z")
Hi, I am installing Skydel on Windows 11 OS, but I am having this problem after applying the license. Does anyone have the same problem? If so, how should I resolve this issue? Kindly, Hongzhao Zheng --- ## [Can Skydel perform space-based scenarios?](https://learn.safran-navigation-timing.com/t/can-skydel-perform-space-based-scenarios/590)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 0\ **Last updated:** [April 28, 2022, 11:48am UTC](https://learn.safran-navigation-timing.com/t/can-skydel-perform-space-based-scenarios/590 "2022-04-28T11:48:32Z")
For those who have asked themselves this question, the answer is yes. Skydel is fully realistic for scenarios in space and many customers already use it for these applications. The thing which is quite simplified in th… --- ## [Raw Logging Files](https://learn.safran-navigation-timing.com/t/raw-logging-files/160)
**Author:** [@kgutsche](https://learn.safran-navigation-timing.com/u/kgutsche)\ **Replies:** 3\ **Last updated:** [April 21, 2022, 4:33pm UTC](https://learn.safran-navigation-timing.com/t/raw-logging-files/160 "2022-04-21T16:33:00Z")
Hello, I have some questions regarding the csv files that are written when raw logging is enabled. In the raw logging files, there are a few columns which are not described in the Skydel documentation. First of all, c… --- ## [Range of satellite elevation by Skydel](https://learn.safran-navigation-timing.com/t/range-of-satellite-elevation-by-skydel/562)
**Author:** [@phule](https://learn.safran-navigation-timing.com/u/phule)\ **Replies:** 4\ **Last updated:** [April 5, 2022, 6:50am UTC](https://learn.safran-navigation-timing.com/t/range-of-satellite-elevation-by-skydel/562 "2022-04-05T06:50:26Z")
Hi All, Could you please advise us the range of satellite elevation? We expected it is in the range from 0 to pi/2 radian but in one of our simulation experiment by Skydel with code as below, el\_az = sim.call(GetElevat… --- ## [GNSS-Reflectometry by Skydel simulator](https://learn.safran-navigation-timing.com/t/gnss-reflectometry-by-skydel-simulator/553)
**Author:** [@phule](https://learn.safran-navigation-timing.com/u/phule)\ **Replies:** 10\ **Last updated:** [March 31, 2022, 8:46am UTC](https://learn.safran-navigation-timing.com/t/gnss-reflectometry-by-skydel-simulator/553 "2022-03-31T08:46:59Z")
Hi All, We are currently working on GNSS-reflectometry (GNSS-R) for the task of estimate the altitude of a flying object (h in the photo attached). We generated direct Line of Sight signal and Echo only signal by Skydel… --- ## [Custom GNSS satellite/constellations?](https://learn.safran-navigation-timing.com/t/custom-gnss-satellite-constellations/547)
**Author:** [@mohdyaser](https://learn.safran-navigation-timing.com/u/mohdyaser)\ **Replies:** 1\ **Last updated:** [March 22, 2022, 8:51am UTC](https://learn.safran-navigation-timing.com/t/custom-gnss-satellite-constellations/547 "2022-03-22T08:51:59Z")
Can I configure a custom GNSS satellite/constellation and get connected to a simulated vehicle using Skydel? if so, how? --- ## [Generating Gaussian white noise on pseudorange measurements](https://learn.safran-navigation-timing.com/t/generating-gaussian-white-noise-on-pseudorange-measurements/543)
**Author:** [@m.blois](https://learn.safran-navigation-timing.com/u/m.blois)\ **Replies:** 1\ **Last updated:** [March 20, 2022, 9:30pm UTC](https://learn.safran-navigation-timing.com/t/generating-gaussian-white-noise-on-pseudorange-measurements/543 "2022-03-20T21:30:28Z")
Hi, I am currently involved in simulating various GNSS positioning scenarios, and my team has had trouble figuring out how to use the software to simulate gaussian white noise on raw pseudorange measurements. We have pla… --- ## [Performance Tab in Skydel Software?](https://learn.safran-navigation-timing.com/t/performance-tab-in-skydel-software/535)
**Author:** [@G-Man](https://learn.safran-navigation-timing.com/u/G-Man)\ **Replies:** 1\ **Last updated:** [March 15, 2022, 8:59pm UTC](https://learn.safran-navigation-timing.com/t/performance-tab-in-skydel-software/535 "2022-03-15T20:59:29Z")
Where can I find out more about this since did not see much information in the user manual? I would like to learn more about the difference between Constellation, Modulator & Streamer. --- ## [GTO Orbit with Skydel](https://learn.safran-navigation-timing.com/t/gto-orbit-with-skydel/529)
**Author:** [@rburke](https://learn.safran-navigation-timing.com/u/rburke)\ **Replies:** 0\ **Last updated:** [March 7, 2022, 5:51pm UTC](https://learn.safran-navigation-timing.com/t/gto-orbit-with-skydel/529 "2022-03-07T17:51:31Z")
A questions came in via e-mail today from a space company that thought should be posted in this forum. Question: We are looking at the feasibility of using a Skydel GNSS Simulator to test a spacecraft in GTO orbit – I w… --- ## [HIL with Master/Slave setup](https://learn.safran-navigation-timing.com/t/hil-with-master-slave-setup/526)
**Author:** [@Joshua.Prentice](https://learn.safran-navigation-timing.com/u/Joshua.Prentice)\ **Replies:** 1\ **Last updated:** [March 7, 2022, 4:21pm UTC](https://learn.safran-navigation-timing.com/t/hil-with-master-slave-setup/526 "2022-03-07T16:21:45Z")
When trying to push HIL data from an external system to a Master/Slave setup the Slave posts the error: “HIL Error: Client must push at least one position”. Obviously the Slave isn’t getting any HIL data, but my question… --- ## [Testing Vehicle with Multiple Receivers/Antennas](https://learn.safran-navigation-timing.com/t/testing-vehicle-with-multiple-receivers-antennas/512)
**Author:** [@LeisaButler](https://learn.safran-navigation-timing.com/u/LeisaButler)\ **Replies:** 3\ **Last updated:** [March 4, 2022, 2:11pm UTC](https://learn.safran-navigation-timing.com/t/testing-vehicle-with-multiple-receivers-antennas/512 "2022-03-04T14:11:32Z")
Many customers need to test dual-antenna vehicles. Below is a summary of a common requirement for an automtoive customer. Assisted Driver application, using GPS and Galileo L1 and L5 bands, and dual antennas. Customer c… --- ## [Reading IQ data file by MATLAB or Python](https://learn.safran-navigation-timing.com/t/reading-iq-data-file-by-matlab-or-python/509)
**Author:** [@phule](https://learn.safran-navigation-timing.com/u/phule)\ **Replies:** 2\ **Last updated:** [March 1, 2022, 1:31am UTC](https://learn.safran-navigation-timing.com/t/reading-iq-data-file-by-matlab-or-python/509 "2022-03-01T01:31:20Z")
Hi All, Could you please give me a hint of how to use MATLAB or Python to read the IQ data files? Thank you for your help in advance. Best regards, Phu --- ## [Inertial Measurements-simulation](https://learn.safran-navigation-timing.com/t/inertial-measurements-simulation/295)
**Author:** [@Srinu](https://learn.safran-navigation-timing.com/u/Srinu)\ **Replies:** 6\ **Last updated:** [February 22, 2022, 11:33pm UTC](https://learn.safran-navigation-timing.com/t/inertial-measurements-simulation/295 "2022-02-22T23:33:34Z")
Where can we get the simulated IMU data( sensor measurements like angular rate and acceleration) in the skydel --- ## [Skydel and GSG-6 basic antenna models](https://learn.safran-navigation-timing.com/t/skydel-and-gsg-6-basic-antenna-models/446)
**Author:** [@Grace](https://learn.safran-navigation-timing.com/u/Grace)\ **Replies:** 4\ **Last updated:** [February 17, 2022, 9:39pm UTC](https://learn.safran-navigation-timing.com/t/skydel-and-gsg-6-basic-antenna-models/446 "2022-02-17T21:39:29Z")
Dear Orolia community, Please find below simple antenna models to load into Skydel. .csv files can be uploaded to Skydel and .ant files are the equivalent that can be uploaded to Studio view for the GSG-6. skydel-tool… --- ## [Add Another Parameter to the .csv file of Transmitter](https://learn.safran-navigation-timing.com/t/add-another-parameter-to-the-csv-file-of-transmitter/444)
**Author:** [@hongzhaozheng](https://learn.safran-navigation-timing.com/u/hongzhaozheng)\ **Replies:** 3\ **Last updated:** [February 17, 2022, 12:36pm UTC](https://learn.safran-navigation-timing.com/t/add-another-parameter-to-the-csv-file-of-transmitter/444 "2022-02-17T12:36:38Z")
Hi, I am currently playing with the advanced jamming feature of Skydel. I wonder if it is possible to show another parameter in the exported .csv file of transmitter? The parameter of my interest is the time of signal t… --- ## [Details about the BPSK signal for the jammer](https://learn.safran-navigation-timing.com/t/details-about-the-bpsk-signal-for-the-jammer/456)
**Author:** [@hongzhaozheng](https://learn.safran-navigation-timing.com/u/hongzhaozheng)\ **Replies:** 2\ **Last updated:** [February 16, 2022, 9:19pm UTC](https://learn.safran-navigation-timing.com/t/details-about-the-bpsk-signal-for-the-jammer/456 "2022-02-16T21:19:37Z")
Hi, Can anyone tell me more about the BPSK signal of the jammer? What is the digital sequence used in the generation of the BPSK signal? Is it possible to modify the initial phase of it? Also, where can I get the inform… [Previous page](https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md?page=2) [Next page](https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md?page=4)