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33 Threads found on edaboard.com: Orthogonal Signal
How can I generate orthogonal spreading sequences in Matalb in frequency and time domain? What properties a set of spreading sequences should have ? e.g in time domain x=randi(, 10,1); % time domain signal SprdSeq= rand(20,20); %% HOW to GENERATE orthogonal ? Spreadedsignal= SprdSeq *diag(x); In frequency (...)
First lay tracks that are controlled impedances without vias and good ground planes with microvias as needed. Then partly lay tracks dominated in one direction and orthogonal ones. Then repeat visa versa on other side for balance of signals. Complete tracks with orthogonal connections and vias where required. Although not perfect, and (...)
The Saturn PCB toolkit has been mostly suggested for similar purposes. It should be noted that the traces on the said layers are no clean asymmetrical stripline because the impedance is affected by traces on the other signal layer. You get best results by defining orthogonal routing directions on the adjacent layers.
They help a lot. But have you tried a big CM choke around cable and use balanced paths, minimal loop area and orthogonal routing to interference?
The first equation corresponds to the nature of orthogonal signals, what's the reasoning for the second one?
In order to avoid possible cross-interference between neighbors signals, it is very important that routing in the adjacent layers are alternately mutually orthogonal one each to another, as follows: Mounting TOP ( Vertical ) GND signal ( Horizontal )*** signal ( Vertical ) VCC Mounting BOTT
Hi David, check this link: orthogonal Frequency-Division Multiplexing (OFDM) for CP length and this is a very good website for sparse introduction Introduction to compressive sensing
Do not confuse Sideband Suppression with Image Rejection. Direct Conversion Receivers doesn't have an image frequency. In an IQ receiver, ideally the I and Q channels of the radio signal carry orthogonal, non-interfering, channels of information. Mismatch (imbalance) in the Gain or Phase of the I and Q channels results in interference between the
Hi, I don't think that the proposal of Biff44 works. The carrier as well as the sidebands of the signal in one linear polarization are at 90? out of phase (lead or lag) with respect to the components in the other orthogonal polarization. Them, the envelopes are the same (let's think in the phasors). As an alternative to the use of CP antennas
Yes, signals of same frequency and phase sum by magnitude, orthogonal signals, e.g. unrelated noise sources by power (total signal = squareroot of summed squares).
It when two carriers are orthogonal; for example sin(ωt) and cos(ωt) - are orthogonal and are used to form QPSK signal.
IF X and Y are statistically independent (or orthogonal) then the RMS of the combined signal (sum) will be sqrt(X^2 + Y^2) and the distribution will be exponential
orthogonal means they have no overlap (geometrically : imagine two vectors ,they are orthogonal if projection of one is a point on the second one,or in other words their dot product =0). It may be a little confusing to understand orthogonality in OFDM ,because the basis function (signal) in ideal OFDM need to be (...)
In book of Andrea Goldsmith, it is written that "TDMA, FDMA, and orthogonal CDMA are all equivalent in the sense that they orthogonally divide up the signaling dimensions, and they therefore create the same number of orthogonal particular, given a signal space of dimension 2BT, N (...)
your transmitted waveform is juat a sum of a sine and cosine, and so the signal power = 1 (A sine 's/cosine's power is 1/2, and they can added since they are orthogonal) to be more exact signal power = 1/T ∫ (from -T/2 to T/2) (sin (2*pi *t /T) + cos (2*pi *t /T) )^2 dt = 1 Since all possible symbols have same power (all (...)
Hello, What is the relation between cooperative diversity and orthogonal partitioning of the channel resource? and why? Thanks in advance
(just an idea) As the CDMA codes are orthogonal. If we correlate all the PN codes with received signal (considering that received signal is time aligned. Otherwise algo needs extension to consider delay or non-alignment), we will get different power level for all the available PN codes. Now set a threshold, from knowledge base, to (...)
calculate the coefficients for the filter which will produce a noise v'(n) and when added to x(n) will remove the noise and leave the desired signal That's basically a misunderstanding of the optimum filter concept. In the usual case, when you have uncorrelated noise and an "orthogonal" signal, a filter only can reduce spectral com
hi every body i have a question what is the difference between orthogonal in time and orthogonal in frequency i know that in time is int(GxG*)=0 can any body help
From the orthogonal principle, E{(WY-X)Y^H} = 0, Y=HX+n we could get WE(YY^H)=E(XY^H), assuming E(XN^H)=0, i.e., signal and noise are independent, and mean of the noise is zero E(YY^H)=HE(XX^H)H^H+E(nn^H), Assumped that E(XX^H)=PI, and E(NN^H)=NI, i.e., signal is an independent random vector and noise is also an independent random (...)