Signal Processing Weekly Newsletter

Signal Processing newsletter

Top new questions this week:

What's the best technique to determine if the contents of two images are the same?

I need to run comparisons on the output of hundreds of frames of simple 3D-rendered characters. Perceptually, many of the frames are exact duplicates. Based on this, I assumed something like a ...

image-processing edge-detection color canny-edge-detector  
asked by LucasTizma 5 votes
answered by A_A 1 vote

What is the theoretical upperbound of information that could be transmitted by a device per second?

Suppose I would like to stream data from a device in a single second. What would be the theoretical upperbound of the amount of information (in bits, bytes, pixels...) that could be sent during this ...

discrete-signals digital-communications signal-detection  
asked by Illegal Immigrant 3 votes
answered by MBaz 5 votes

Simulating BPSK Costas Loop in Matlab

I am trying to implement BPSK demodulator in FPGA. First, I am modeling the system in MATLAB. Now, I am trying to design Costas Loop for carrier synchronization. This is the block diagram I'm trying ...

matlab digital-communications bpsk  
asked by Siraj Muhammad 3 votes
answered by Siraj Muhammad 1 vote

How to subsample shift with sinc interpolation?

Does anybody know of a way to shift data by a fraction of a sample by using sinc interpolation? For example, shift an image to the right by 0.1 pixels. I'm struggling to find a formula or reference ...

interpolation  
asked by Mikhail 2 votes

method to detect frequency sweep in audio

I have search a bit to try to find a similar questions, but I have not been able to find any leads. There are techniques to programmatically detect steady tones in audio, such as the Goertzel ...

audio fft  
asked by hashbang 2 votes
answered by Yuri Nenakhov 0 votes

The channel capacity with additive Gaussian noise with changing variance?

As we all know the capacity for a AWGN channel with constant noise variance is just given by $\frac{1}{2}\log(1+SNR)$. What if the variance of the noise changes with the type (assuming the variance ...

discrete-signals digital-communications fading-channel  
asked by Bo LI 2 votes

Reference Request : How to compute CRLB to show the estimator is minimum variance

In system identification or parameter estimation, various input signals are used for exciting the process models. I am interested in parameter estimation of time series model using pseudo random ...

linear-systems reference-request system-identification  
asked by Ria George 1 vote

Greatest hits from previous weeks:

Image classification using SIFT features and SVM

I am hoping someone can explain how to use the bag of words model to perform image classification using SIFT/SURF/ORB features and a support vector machine? At the moment I can compute the SIFT ...

classification sift  
asked by Jono Brogan 9 votes
answered by Dima 14 votes

How to generate band-limited Gaussian white noise?

In some papers, I read that the additive noise is band-limited Gaussian white. How can I simulate this type of noise use Matlab?

matlab noise gaussian  
asked by Bo LI 6 votes
answered by Jason R 12 votes
Subscribe to more Stack Exchange newsletters


Unsubscribe from this newsletter or change your email preferences by visiting your subscriptions page on stackexchange.com.

Questions? Comments? Let us know on our feedback site. If you no longer want to receive mail from Stack Exchange, unsubscribe from all stackexchange.com emails.

Stack Exchange, Inc. 110 William St, 28th Floor, NY NY 10038 <3