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24 Threads found on edaboard.com: **Subspace**

Hi,
I am trying to implement the music algorithm for rank enhanced case with the following theory. Have anyone already tried this on Matlab? If so, please let me know how it worked? Please have a look in the code.
DOA ESTIMATION OF QUASI-STATIONARY SIGNALS VIA KHATRI-RAO **subspace**
by Wing-Kin Ma , Tsung-Han Hsieh , and Chong-Yung Chi
I am not re

RF, Microwave, Antennas and Optics :: 03-31-2017 14:47 :: sanjoybasak1234 :: Replies: **0** :: Views: **708**

So, your question is how to find a Q such that:
QH_2=0_N
where 0N is an NxN matrix of zeros (and N=2 in your case).
As you said, the usual way to do this is with a projection. Assuming the columns of H2 are independent, the projection onto the **subspace** spanned by the columns of H2 is:
P =

Digital Signal Processing :: 10-26-2014 12:48 :: weetabixharry :: Replies: **8** :: Views: **1311**

The down sampling is to ensure that the transformed image **subspace** resolution after DWT is still same as the original image spatial resolution. This is referring to dyadic wavelet transform.

Digital Signal Processing :: 04-04-2014 14:54 :: yok :: Replies: **1** :: Views: **3179**

I would like to clarify my concept on basis for **subspace**s. For example: if you're given a time domain function, f(t)= { 1 for 0subspace v2? Do we have to make use of the formula rho(2^j t - k)?

Digital Signal Processing :: 02-14-2014 22:19 :: Sonia1234 :: Replies: **2** :: Views: **776**

can any one help me to get matlab simulation related to vandermonde **subspace** FREQUENCY DIVISION MULTIPLEXING?pLEAS i need it because I want to use it simulation of my research
- - - Updated - - -
can any one help me to get matlab simulation related to vandermonde **subspace** FREQUENCY DIVISION MULTIPLEXING?pLEA

Software Links :: 09-05-2013 02:51 :: mahamemihigo :: Replies: **0** :: Views: **20**

That's why captain Kirk used **subspace** communications. As soon as that is invented, you will be all set.

RF, Microwave, Antennas and Optics :: 09-12-2012 09:50 :: biff44 :: Replies: **13** :: Views: **1898**

regtools: tikhonov(U,s,V,b,lambda,x_0) - File Exchange - MATLAB Central
function = subsearch(f0,res,fdef,Afunc,Lfunc,lambda,S)
% Searches in **subspace** spanned by columns of S for the optimal solution
% of the regularization problem
% (la

Mathematics and Physics :: 12-06-2011 00:50 :: yura717 :: Replies: **1** :: Views: **2281**

Im using signal **subspace** approach using fft values.After decomposing the signal into signal+noise **subspace** and noise **subspace** what to do with the noise **subspace**?

Digital Signal Processing :: 10-06-2010 10:14 :: kirubacdm :: Replies: **0** :: Views: **657**

i'm trying to implement spectral subtraction using **subspace** decomposition.
i have subtracted the variance of noise frame from all frames after applying fft.
i dont know how to add the overlapped windows. my frame size is 20 ms(160) and frame shift is 10ms(80).can anybody help me imm. im in need of solution immediately

Digital Signal Processing :: 09-23-2010 17:14 :: kirubacdm :: Replies: **0** :: Views: **852**

help me! I want to find book R.O.Schmidt " a signal **subspace** approach to multiple source location and spectral estimation"
if you have it,please send to me. My email : mailoan1909@gmail.com
thanks very much

Digital Signal Processing :: 10-13-2009 09:48 :: mailoan1909 :: Replies: **0** :: Views: **1038**

Hi all members!
I've read the ieee (Sumit Roym Chengyang Li, IEEE 2008) paper regarding to OFDM without CP(Cyclic Prefix) in a **subspace** Blind Channel and I couldn't get what is the Blind Channel? how to make it?
please help me

Digital communication :: 04-02-2009 06:56 :: mashhur :: Replies: **1** :: Views: **1040**

:?:
Hi all!
I would like to know why coloumn space of a correlation matrix is called "Signal sub-Space" and the left null space is called the noise **subspace**.?I would appreciate any response..
Regards,
Wajahat.

Digital communication :: 01-05-2009 01:21 :: wajahat :: Replies: **0** :: Views: **1283**

hi,
plz would you like to advice me some references on :
pascal-vandermonde decomposition
the companion matrix
projector's matrix and **subspace**
thanks ...

Mathematics and Physics :: 04-01-2008 08:04 :: Nab :: Replies: **0** :: Views: **743**

1- this is clear. we use from contradiction that if m>n then **subspace** isn't independent and is dependence.
2-if for example in XY coordination, if a1X+a2Y=0; then a1=a2=0; also you can set another two basic vector in this cordinate

Mathematics and Physics :: 02-21-2008 19:23 :: salam2000 :: Replies: **1** :: Views: **1016**

hi
I need matlab code for delay estimation with **subspace** tracking in time fading channel
advanced thnks

Digital communication :: 02-19-2008 10:27 :: z.samadi :: Replies: **0** :: Views: **1647**

"S={f ε C | f((to+t1)/2)=0} where C is the set of all continuous functions which map into S **subspace** of C?Prove that?"
I can't solve that problem.Please can you help me?

Digital Signal Processing :: 10-27-2007 10:17 :: cbecer2003 :: Replies: **0** :: Views: **958**

it is based on **subspace** decompositon method and has high resolution compared with classical method. but does not work well with noisy signal especailly impulsive noise

Digital Signal Processing :: 06-26-2007 10:08 :: ebook123456789 :: Replies: **1** :: Views: **1319**

What is sample spaced and non-sample spaced channel?
Because this kind of both could give difference effect when use channel estimation
that rely on channel **subspace** seperate from noise **subspace** and use all channel
length.
Importance: How i can simulate those channel ?
Thank for kindly

Digital communication :: 03-19-2007 17:36 :: maomun :: Replies: **0** :: Views: **1456**

What is the main part of your question ?
Why a **subspace** need to contain all zero code vector or why it must be closed under sum operation?
Property of closed operation under summation with property of scalar multiplication gives an opportunity to form all code vectors using generator matrix (basis vector’s )( look in 6.4.4 of Scalar).
I s

Digital communication :: 12-21-2006 04:47 :: ilya79 :: Replies: **3** :: Views: **1135**

Hi to all
What is **subspace** deconvolution?
can anybody simply explain it.
thanx

Digital communication :: 10-12-2006 12:00 :: mro83 :: Replies: **0** :: Views: **854**

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