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21 Threads found on edaboard.com: **Orthogonal Space**

Hi,
In order to obtain circular polarization you must have two modes spacially **orthogonal** and with a 90° phase shift. These two modes are usually distributed in the same manner in the **space** (for the electric or the magnetic field). The magnetic field can give us the surface current ( Js = H^n) and consequently you have the two distributions of curr

RF, Microwave, Antennas and Optics :: 11-30-2016 21:30 :: eraste :: Replies: **1** :: Views: **358**

Hello,
I am trying to draw a small arrow in Altium, and obviously want the line to be able to go in any direction, not just **orthogonal** , any ideas??this is absolutely simple to achieve in Eagle?no idea in Altium

PCB Routing Schematic Layout software and Simulation :: 07-06-2016 12:48 :: treez :: Replies: **1** :: Views: **511**

Hello all,
Why when we use **space**-time block coding (STBC) with single-carrier frequency-domain equalization (SC-FDE) we use a permutation matrix, while we don't use it in case of **orthogonal** frequency division multiplexing (OFDM)?
Thanks

Digital communication :: 10-24-2014 23:02 :: David83 :: Replies: **0** :: Views: **706**

AC quantities are vectors in a two-dimensional vector **space**, usually respresented by complex numbers. In the present case both voltages are **orthogonal**, summing like the legs of a right-angled triangle.

Elementary Electronic Questions :: 10-18-2013 18:13 :: FvM :: Replies: **10** :: Views: **1158**

please i need code shows graph the result of simulation of no diversity(1Tx,1Rx)(BPSK),OSTBC(4Tx,1Rx)(QPSK),Alamouti(2Tx,2Rx)(BPSK), Maximal-Ratiocombining(1Tx,4Rx)(BPSK) and Theoretical 4th ?orderDiversity(QPSK).
please help me i need code to my project

Digital communication :: 07-20-2013 15:59 :: ayat81820 :: Replies: **4** :: Views: **635**

don't get confused by the word "**orthogonal**".
Here's what happens in simpler (?) words ... and based on understanding of the Sinc function.
if you **space** the subcarriers from one another by any amount equal to the reciprocal of the symbol period of the data signals, the resulting sinc (sin x/x) frequency response curve of the signals is such that

Digital communication :: 06-12-2013 03:54 :: kripacharya :: Replies: **2** :: Views: **641**

Two vectors are **orthogonal** one each other if their dot product is zero, then I think you just have to find a vector (y1, y2, y3) so that:
x1*y1+x2*y2+x3*y3=0
As said by Shug, in the **space** there are infinite vector **orthogonal** to a given one.
If you don't have other costraints I think you can arbitrary assign a value to two variables (...)

Digital communication :: 03-20-2013 22:02 :: albbg :: Replies: **4** :: Views: **698**

Hi guys,
I'm trying to learn PCA. as an example I have just 2 points in my 3-D **space**. using PCA(eigen vectors) the outcomes are the principal component: line connecting these 2 points
the 2 other **orthogonal** axes in my opinion could be anywhere in the plane perpendicular to this connecting i wonder what is the PCA criteria to give me t

Mathematics and Physics :: 09-27-2012 16:54 :: hfss_newbie :: Replies: **0** :: Views: **615**

Hi guys,
I'm trying to learn PCA. as an example I have just 2 points in my 3-D **space**. using PCA(eigen vectors) the outcomes are the principal component: line connecting these 2 points
the 2 other **orthogonal** axes in my opinion could be anywhere in the plane perpendicular to this connecting i wonder what is the PCA criteria to give me the

Elementary Electronic Questions :: 09-27-2012 14:48 :: hfss_newbie :: Replies: **0** :: Views: **548**

Hi,
I am trying to do simulation for **orthogonal** **space**-Time Block Coding (OSTBC) with four transmit and one receive antenna using BPSK modulation. I followed the approach in Jafarkhani's book: "**space**-Time Coding: Theory and Practice", but the curve is not consistent with his. Why?
clear all;
clc;
SNRdB=0:30;
SNR=10.^(SNRdB./10);

Digital communication :: 01-02-2012 00:57 :: David83 :: Replies: **0** :: Views: **440**

Hi Everyone. I am doing thesis on this topic .Please help me by providing matlab code for " Performace analysis of **orthogonal** STBC using feedback in correlated channels ". if anyone is having or provide some related material
I will be very much thankful to the person.Please mail me at

Digital communication :: 08-17-2010 05:23 :: er.deepak.garg22 :: Replies: **0** :: Views: **1530**

Hi everyone.
I know that vertical and horizantal polarizations are **orthogonal** in **space**.
what I dont understand is how can RHCP and LHCP be **orthogonal** in **space**.
If two waves RHCP and LHCP are existing in the same position, then I assume that their vector components will interfere and may cause for example linear (...)

RF, Microwave, Antennas and Optics :: 03-17-2010 07:59 :: abees81 :: Replies: **0** :: Views: **756**

In book of Andrea Goldsmith, it is written that
"TDMA, FDMA, and **orthogonal** CDMA
are all equivalent in the sense that they **orthogonal**ly divide up the signaling dimensions, and they therefore create
the same number of **orthogonal** particular, given a signal **space** of dimension 2BT, N **orthogonal**
channels of (...)

Digital communication :: 02-28-2010 13:02 :: moonnightingale :: Replies: **1** :: Views: **1092**

I understand how to use clarke/park transformers, but personally I have only used them to control induction machines via pwm inverters.
In my opinion, the operation is similar in many aspects. AFE control can also use two phase **orthogonal** (Iα, Iβ, Vα, Vβ) **space** vector descriptions. As a specific point, a mains f

Power Electronics :: 07-25-2009 08:56 :: FvM :: Replies: **5** :: Views: **5559**

>1.I would want to know a little bit about Non-**orthogonal** STBC. Can you help me!
Guess these are codes where the transmitted sequences are not always **orthogonal** to each other, unlike, say, Alamouti. But then, may be they are called "partially **orthogonal**"
>2.Are STBCs a kind of chanel coding or what?
Nope. STBC are not for error (...)

Digital communication :: 06-30-2008 15:35 :: bulx :: Replies: **6** :: Views: **1901**

3 **orthogonal** circle as 3 coordinate axis!

Mathematics and Physics :: 11-16-2007 12:23 :: ylscqu :: Replies: **4** :: Views: **1140**

i am doing project work on "**space** time block codes from **orthogonal** designs" using matlab. can anybody send materials regarding this topic which help me to understand theory more.
i thank u lot to those.....

Digital communication :: 03-05-2007 07:12 :: sabari_eda :: Replies: **4** :: Views: **1358**

Where are two or more frequencies **orthogonal** to each other?
M

Digital communication :: 01-23-2007 16:00 :: magnetra :: Replies: **9** :: Views: **14139**

Mathematics and Physics :: 12-27-2006 11:23 :: mayyan :: Replies: **4** :: Views: **1107**

Plane wave means you've E & H component **orthogonal** to each other and both components are propgating in **space** in the prpgation direction with certain propgation phase , and E , H components are varying by time and **space**

RF, Microwave, Antennas and Optics :: 06-06-2006 15:25 :: Abu Ammora :: Replies: **1** :: Views: **1133**

It is unique. If the function f(t) is piecewise continious and square integrable the fourier coffiecients are unique. This is a consequence of Sturm-Liouville theory. Another way to look at things is to consider the fourier series as an expansion in an infinite dimensional Hilbert **space** with cosnx and sinnx as the **orthogonal** basis functions.

Mathematics and Physics :: 10-16-2005 18:10 :: irfan1 :: Replies: **2** :: Views: **3119**

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