How do I go about designing a Geolocation Database for my area?

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How to plot a coverage area on Google Map taking inputs from Matlab?

I have designed a Longley Rice pathloss model .. Now, I have to use kml pgm to plot pathloss on earth's terrain given latitude and longitude of transmitter. Also, given a point inside the coverage...

31 December 2013 8,208 6 View

How can I access the green spots in the figure using Matlab?

There is a central TV tower transmitting signal at a particular frequency. I have to find the power levels at each point inside a particular region using RF propagation models. For that first of...

11 December 2013 8,269 4 View

Can anybody suggest how to divide a circular region into smaller square regions and access each coordinate of these smaller squares?

Please see the MATLAB plot attached to this question. How can I access the coordinates of the squares in the circle? Could anybody help me with the MATLAB code?

11 December 2013 3,362 9 View

Can anyone help with modelling an RF pathloss contour in MATLAB?

I am trying to make a model for geolocation database for the identification of Television White Spaces. For this I would like to start with modelling an RF pathloss Contour (say, a free space...

10 November 2013 6,975 7 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Matthias Wilhelm

Have you read this:

Rohan Murty, Ranveer Chandra, Thomas Moscibroda, Paramvir (Victor) Bahl, "SenseLess: A Database-Driven White Spaces Network," IEEE Transactions on Mobile Computing, vol. 11, no. 2, pp. 189-203, Feb. 2012, doi:10.1109/TMC.2011.241

http://www.eecs.harvard.edu/~rohan/papers/senseless-tr.pdf

You could also look at what the FCC specified ...

Go to http://www.ecfr.gov, the relevant parts for the new white space interference mitigation are at 47 C.F.R. 15.712 and 15.713.

[Title 47: Telecommunication

PART 15---RADIO FREQUENCY DEVICES

Subpart H---Television Band Devices

§ 15.712 Interference protection requirements and § 15.713 TV bands database]

That site is not really easy to browse ...

They describe how you can calculate whether sending is ok based on the locations in the database and path loss formulas. I don't know if someone already integrated it in a usable form like a simulator.