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# Subspace

24 Threads found on edaboard.com: Subspace

## Music algorithm with KHATRI-RAO subspace for Doa estimation

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

## MIMO interference cancellation using matrices projection

Hello, suppose I have a 2x2 MIMO system and that the received signal is: Y=H*X+H2*I+BBG Where H1 is my Rayleigh channel Matrices (H1(ij) are complexes random variables) X is my original transmitted signal H2 is an other Matrices channel totally different fro

## Discrete Wavelet Transform, why downsample ?

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.

## Basis for subspace in OFB

I would like to clarify my concept on basis for subspaces. 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)?

## MATLAB simulation of VFDM

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

## Free Space Path Loss for Deep space/Interstellar Communications

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

## matlab code for solving nonlinear systems by thionov regularization

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

## plz help i'm new to subspace approach?

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?

## hai guys im having the same problem

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

## searching book R.O.Schmidt &quot; a signal subspace app

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

## OFDM without CP in a Blind Channel.....

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

## coloumn space and left null space

:?: 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.

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

## Vector Spaces in linear algebra

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

## need matlab code for subspace-based channel estimation

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

## Help me solve a subspace problem

"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?

## What is the main idea in MUSIC method for PSD estimation?

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

## What is sample spaced and non-sample spaced channel

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

## Linear Block Coding: Enclosure property of codeword space

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

## What is the subspace deconvolution?

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