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113 Threads found on edaboard.com: Gaussian Matlab

MMSE of a Gaussian noisy image

Hi everyone, I have a gaussian noise corrupted image and I need to know how can I find the MMSE estimate of the entire noisy image in matlab? or how can I find the MMSE estimate of a gaussian noise vector/signal (because I can divide the entire image into small patch vectors)? Thanks.

MMSE of a Gaussian noisy image

Hi everyone, I have a gaussian noise corrupted image and I need to know how can I find the MMSE estimate of the entire noisy image in matlab? or how can I find the MMSE estimate of a gaussian noise vector/signal (because I can divide the entire image into small patch vectors)? Thanks.

Plotting antenna pattern in MATLAB

I have a beamformed output, say y = weights * signal, where the signal is gaussian,i.e signal = randn( 1 , 1e5 ). Now I want to visualise the output in angular domain, i.e I want to plot the gain of the resulting signal y as a function of elevation angles. I am considering the mainlobe of 'signal' to be pointing in (0 azimuth,0elevation).

Gaussian Source, Noise, and and Distribution for wireless sensor network?

in my recent work for wsn , i faced some questions about what is the differences gaussian Source ,gaussian *Noise,and and gaussian Distribution nodes for wireless sensor network . and how i can implement that in matlab ? :shock::shock::shock:

How to generate AWGN.??

AWGN - Add White Gausian Noise. to generate white gaussian noise u need function that generates random numbers with gaussian distribution (example randn in matlab) If your enviroment doesnt have gaussian distributed random generator you have to make one using standard random generator ( ex. rand function). So u have to: (...)

I need Matlab for this system dynamics

a random Rayleigh flat-fading channel object based on Jake?s model is generated in matlab with sampling period of 10 μs and the maximum Doppler shift is set to 200 Hz. The additive white gaussian noise with SNR of 23 dB is used. The required BER is set to 10−3 and the average transmit power is fixed at 0.2 W. Two independent simula

wiener filter matlab code

Need help with iterative wiener filter code from gaussian noise addition to performing the iterations

3D FDTD using FDTD in CST(Computer Simulation Technology)

Hey I am using CST for 3D FDTD simulation. I can do 2D and 1D in C or matlab code but with 3D code becomes complicated hence I want to shift to CST. I understand that CST microwave studio can do the job for me. I just want 5x5x5 m 3D space and take a gaussian source somewhere within this space. I want to visualize how the E or H field is changing

Relation between BER & SNR for BPSK

For BPSK, the probability of error, BER = Q(sqrt(2Eb/No)) where Eb/No is the absolute SNR per bit (not dB) and Q(X) is the common Q-function (area under gaussian for x>X) Hope it helps

Gaussian Mixture Models as classifier

hi i need matlab code to use gaussian Mixture Models as classifier i have project in language identification and i see some similar projects who use gaussian Mixture Models but i don't know how to build it in matlab

Puls shaping FIR filter

hello..I have a problem. I want to know how to design a pulse shaping FIR filter in matlab when the input to this filter is gaussian pulse. Could you help me please? In my case the output of this pulse shaping filter should be 5th order derivative gaussian pulse. Thanks. waiting for the reply.

OFDM transmitter pulse shaping filter

hello..I have a problem. I want to know how to design a pulse shaping FIR filter in matlab when the input to this filter is gaussian pulse. Could you help me please? In my case the output of this pulse shaping filter should be 5th order derivative gaussian pulse. Thanks. waiting for the reply.

matlab code for PAPR reduction using weighting factor

Hi, does anybody has matlab code for papr reduction of ofdm by weighting factors such as rectangular, gaussian weights. I am stuck up in my final project because of this, if somebody can help, i would be very thankful. Please it would be greatful.:-(

matlab code for received matrix

how to write a matlab code for generating received e in e=hG+n channel :?: zero-mean gaussian noise

Calculation of reflection coefficient using FFT in FDTD code (matlab)

I want to obtain the reflection coefficient using FFT in a transmission line, the source was excited with a gaussian pulse. Τhis is an abstract from a paper that I have as guide: "In order to obtain the reflection coefficient, the coaxial cable was excited with a gaussian pulse of the form Vs (t) = exp(-(t − 3Ts)/Ts) Ts =1/2fmax w

Power of Periodic and Non-Periodic(White Gaussian Noise) Signals using FFT

Hello all, I want to determine the power level (dB amp) of (supposed to be wgn) random signal using oscilloscope data. I have compiled a code to do the job but when tried to verify my code for several different signals (periodic sinus, random gaussian) generated on matlab, I have seen that the code yields different power levels for different sig

Adaptive equalizer to remove intersymbol interference --MATLAB code

I need code for adaptive equalizer to remove intersymbol interference in the output signal. My case : the original signal is convoluted with another signal and gaussian noise is added to the result. I have to use adaptive equalizer to remove the ISI in the output signal. Can anybody send me a link from where i can download this code? thank

Adding data sequence to gaussian noise sequence

Hi, received sequence,r(n)=s(n)+v(n) s(n)=+-1 is the data sequence and v(n) is a gaussian noise sequnce. Decision ckt :if r(n)>0 then 1 r(n)<0 then 0 Now i have to estimate BEP for SNR of 0 to 10 in 1dB increment. Should i use awgn function for the gaussian noise sequence? Please let me know how to do this.

Gaussian Mixture Models code

hi every one i need gaussian Mixture Models matlab code to use in dialect identifcation, speech recognition or speaker recognition system

OFDM with QPSK and AWGN

Hello, Looking for how to modelize with matlab OFDM with QPSK in a gaussian channel. THANK YOU VERY MUCH