Hi I am trying to correlate two maps and see how much they correlate with each other. I have extracted a part of the map, say a 90degree sweep...

Hi I am trying to correlate two maps and see how much they correlate with each other. I have extracted a part of the map, say a 90degree sweep from the origin. Now if my two maps are similar, they should have maximum correlation. I used the function corrcoef(x,y) where x and y are column vectors of each map,respectively, containing the distances from each landmark at each angle from say 0degree...

I saw a code in mathworks.com which analyses the freq components of noisy time domain signal by explicitly plotting power Vs freq fs=1000; ...

I saw a code in mathworks.com which analyses the freq components of noisy time domain signal by explicitly plotting power Vs freq fs=1000;     % sampling freq T=1/fs;       %sample time L=1000;      % signal length t=(0:L-1)/T;     %time vector x=0.7*sin(2*pi*50*t)+sin(2*pi*120*t);   % i/p signal i.e., two sinusoids were added Now , we have noisy time domain signal b...

sir, first of all thank you for your kind response and spotting me typo. ? U wrote in your previous message: If your signal is the "x" you...

sir, first of all thank you for your kind response and spotting me typo. ? U wrote in your previous message: If your signal is the "x" you have below, then the total signal power is 0.49*(0.5)+0.5 = 0.7450. So you need to scale your noise power accordingly.? x=0.7*sin(2*pi*50*t)+sin(2*pi*120*t);? sigma^2(variance ) is numerically equal to the normalised power of the noise. if std dev=2; va...

Hi All ? Im new in this group. I want to say helo to all. I have now only one question " How can I use matLab to make OFDM model that considers...

Hi All ? Im new in this group. I want to say helo to all. I have now only one question " How can I use matLab to make OFDM model that considers the effect of: 1- AWGN (SNR with BER) 2- Fading. and it can shows the amplitude spectrum of the received signal. ? ? Many thanks to all Dr.Abdel-Rahman Al-Qawasmi Head of Telecommunications and Electronics Dept. Engineering Faculty Philadelp...

Dear friends i have done hard decision decoding by passing h and Error vector c but i m not getting correct decoded vector when i flip another...

Dear friends i have done hard decision decoding by passing h and Error vector c but i m not getting correct decoded vector when i flip another bits of this c vector plzzz help me to coclc; clear all; H=[0 1 0 1 1 0 0 1 1 1 1 0 0 1 0 0 0 0 1 0 0 1 1 1 1 0 0 1 1 0 1 0] %Error Free Codeword C=[1 0 0 1 0 1 0 1] %Errorneous Codeword c=[1 0 1 1 0 1 0 1] d_code=hard(c,H) rrect th...

i done the following program for adaptive equalization using lms algorithm. but the BER is about 0.5. how to minimize the BER? please help...

i done the following program for adaptive equalization using lms algorithm. but the BER is about 0.5. how to minimize the BER? please help me........ M = 16; % Size of signal constellation k = log2(M); % Number of bits per symbol n = 3e3; % Number of bits to process nsamp = 1; % Oversampling rate %% Signal Source % Create a binary data stream as a column vector. x = randint(n,1); % R...

If i generate a signal and i add different values of signal to noise ratio how can i get different signals in an array for example i used...

If i generate a signal and i add different values of signal to noise ratio how can i get different signals in an array for example i used for i=-40:40 z=awgn(signal,i) row 1 should have z1 and its columns should have the values when i=-40 simlarly row 2 should have z1 and its columns should have the values when i=-39 and so on. can any one help me?

Hello, I was wondering if it matters where to place the zeropad after windowing a time signal (to prepare for fast FT). More specific, I am...

Hello, I was wondering if it matters where to place the zeropad after windowing a time signal (to prepare for fast FT). More specific, I am use a 418 point Hann window to window a time signal and then pad to 512-points before FT transforming. Will the FT be differ when I place: 1) 52 pads before AND after the window 2) 104 points before the window 3) 104 points after the window -- ...

hi all. i am simulink beginner. can anyone teach me how to create a block for current limiter.. need your assist guys

hi all. i am simulink beginner. can anyone teach me how to create a block for current limiter.. need your assist guys

Hi every body, I am looking for a function in matlab which determines the inverse (f-1) of a function (f). For example: f (x) = 3x +...

Hi every body, I am looking for a function in matlab which determines the inverse (f-1) of a function (f). For example: f (x) = 3x + log (6x +1). I can identify two points f (0) and f (1), but how I can deduce f-1 (1) and f-1 (7) in matlab for example. Thank you very much. ANDRIA.