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Question

false negative and false positive ?

how to write false negative and false positive code for random signal

8 years ago | 0 answers | 0

### 0

answersQuestion

How to choose Threshold when Add AWGN to signal

Hello, sir, I am adding AWGN noise to my Random signal but when I add it I also need to change my threshold value for the signa...

8 years ago | 1 answer | 0

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answerQuestion

how can we calculate false positive and false negative for signal ? can any one provide me matlab code ?

if signal recovered its false negative and if signal is not recovered its false positive what i know that for ii=1:length(X_...

8 years ago | 0 answers | 0

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answersQuestion

hello sir i am writing one equation in matalb but i am facing problem in it when i write that equation it give me wrong answer can anyone help me to write that equations for me

i am solving nonlinear equation but i am facing problem in these equation can anyone help me to write that equations for me i ha...

8 years ago | 0 answers | 0

### 0

answersQuestion

hello sir i want to plot digram for SNR Vs false negative and positive ..

i am confused how to write matlab code for false negative and false positive can anyone provide me the matlab code for false neg...

8 years ago | 0 answers | 0

### 0

answersQuestion

subscript indices must either be real positive integers or logicals( X_re(k_r)=XD(1,kd); can anyone help me why i am getting this error

clc clear all N=1024; tic; k=50; d=28; aa=6; b=10; a=3; X=zeros(1,N); % xp_unsolved2=[]; % X_p=randperm(N,k); % X_v...

8 years ago | 1 answer | 0

### 1

answerQuestion

Undefined operator '^' for input arguments of type 'cell'.

c0=1; c1=2; c3=4; A={((c0/2)-(c1*c2/6)+(c2^3/27))-[(c0/2)-(c1*c2/6)+((c2^3/27)^2)+(c1/3-c2^2)^3]^1/2}^1/3; i am ge...

8 years ago | 1 answer | 0

### 1

answerQuestion

hello sir can any one give me a matlab code of moment preserving problem of tsai .

i want to use it for my assignment

8 years ago | 0 answers | 0

### 0

answersQuestion

hello sir i have three different graph from three different code i want to get one performance graph ho i will do that ?

i have try save(filename) this syntax of Matlab but its not working in my case can you tell me which is the better way to plot t...

8 years ago | 1 answer | 0

### 1

answerQuestion

Subscript indices must either be real positive integers or logicals.

k_est=k_p(bb,:); XF_est=xf(bb).XF; num_2=num_2+1; kkk2(num_2,:)=k_est; for iii=1:length(k_es...

8 years ago | 1 answer | 0

### 1

answerQuestion

hello sir i want real values but when i write my function in matlab s(ii)==real (s(ii)); it give me complex value how to solve it

ii=1:2; s(ii)=real(s(ii)); s(ii)=round(log(z(ii))*N/j/2/pi)+1; this is my short function please guide me where i a...

8 years ago | 1 answer | 0

### 1

answerQuestion

The signal-to-noise ratio must be a real scalar?

i get this answer when my SNR is Vector.i want to plot SNR for [5,10,15,20,25,30,35,40,35,50] but when i write in vector form i ...

8 years ago | 1 answer | 0

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answerQuestion

hello sir i want to find a nonzero number in my total error signal ?

my original signal is X and my Recovered signal is X_re and the total Error which i count between them is Error=X-X_re; now i h...

8 years ago | 1 answer | 0

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answerQuestion

snr vs recover signal

for snr_num=1:9; snr=snr_num*5+5; for exp_num=1:100; Sir i want to plot snr for my recover signal and i want ...

8 years ago | 0 answers | 0

### 0

answersQuestion

hello sir i want to ask question about threshold value how we will choose a threshold value for a random signal? for example i have random signal N=1024 and K=20 for my sparse signal i want to calculate the threshold values ?

i am downsampling my signal and i take fft of my downsampling signal after that i want to select the appropriate threshold value...

8 years ago | 0 answers | 0

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answersQuestion

hello sir i am calculating mean square for my two signals but its giving me constant mean square error..?

clc clear all N=1024; k=8; d=16; a=1; b=5; X=zeros(1,N); X_p=randperm(N,k); X_v1=rand(1,k); X_v...

8 years ago | 0 answers | 0

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answersQuestion

hello sir i want to calculate mean square error for my all possible value for the system how to calculate it ?

k0=1; ss=[0,1,2,3]; kk=0; poss=[]; for ii=1:d poss=[poss,k0+(ii-1)*(N/d)]; end for ii=1:length(poss) k1=...

8 years ago | 1 answer | 0

### 1

answerQuestion

i am solving over-determined system but when i run my code its give me result inner dimension mismatch how to solve it

l=0:28 N=28 for k=1:7 k1=k+(n*7); k2=k+(n*7); M=[1 1 ; e^(j*2*3.14)*(k1-1)*(l/N) e^(j*2*3.14)*(k2-1)*(l/N) ...

8 years ago | 1 answer | 0

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answerQuestion

how we will do bucktization in matlab anyone have a code of bucketization process in matlab so please send me ?

i want to do bucketization after downsampling and the solve that system.i am looking forward for your help

8 years ago | 1 answer | 0