Analog Signal Processing

The function implement the 2D dyadic(Paley) ordered fast in-place Walsh-Hadamard transform, which can be used in signal processing, pattern recognition and Genetic alogorithms. This algorithm uses a Cooley-Tukey type signal flow graph and is implemented in N log2 Nadditions and subtractions. Data... Platforms: Matlab

RF Blockset converts frequency domain RF information to a baseband-complex time-domain model, for fast execution and compatibility with Simulink signal processing and communications blocks.This simple model illustrates some relationships inherent in the conversion...* Length of impulse response =... Platforms: Matlab

If applied to a matrix, the function FILTFILT (Signal Processing Toolbox) calls itself recursively for each column. Internally FILTER is called twice, but this can be performed with a matrix directly to avoid the unnecessary overhead. For a [100 x 100] matrix FILTFILT is about 10 times faster... Platforms: Matlab

This script calculates BER for a numebr of SNR values in gaussian environment for QAM 16 Modulation.It calculates 100 errors for each BER measuremnet for better results.I hope this will be helpful for students of signal processing and communications alike. Platforms: Matlab

In one type of gene expression analysis, fluorescently tagged messenger RNA from different cells are hybridized to a microscopic array of thousands of complimentary DNA spots that correspond to different genes. Illuminated spots emit different color light, indicating which genes are expressed... Platforms: Matlab

The main program is MAIN.mThis program will estimate the single source points present in theinstantaneous mixtures and using the estimated single source points the mixing matrix will be estimated. Then the error in mixing matrixestimation and the latest estimated mixing matrix will be... Platforms: Matlab

It can be used in image recovery actions, image processing tasks, in signal processing, in simulations or optimization tasks. Platforms: Matlab

HARMASYLLABLESEG - Segments a signal stored in a WAV file into individual syllables. Also graphs the spectrogram and signal with syllables highlighted in red to show what parts of the signal contain syllables. INPUT: - FILENAME: The path to a signal stored in WAV format. The following arguments... Platforms: Matlab

Computes the H-infinity optimal causal filter (indirect B-spline filter) for the cubic spline.[INPUT]d: delay[OUTPUT]psi: the optimal filter psi(z) in a TF objectgopt: optimal valueThis file is based on the following paper:M. Nagahara and Y. Yamamoto,H-infinity optimal approxmation for causal... Platforms: Matlab

HILBERT2 Extract instantaneous envelope and frequency from a bandlimited signal via Hilbert transform. [ENV FREQ] = HILBERT2(X,FS), for vectors X, returns estimates of the instantaneous envelope and frequency. X is assumed to be a band-limited signal sampled at a rate specified by FS (in units... Platforms: Matlab

The FxEngine is an Open C++ Framework under LGPL license. The FxEngine Framework simplifies the plugin architecture for the data flow processing. It provides a full control to the plugin architecture for applications that require custom solutions. With the Framework, you can create your own... Platforms: Windows

fSGolayFilt is a fast polynomial smoothing filter for uniformly spaced signals. This implementation offers less flexibility than other versions found in the MATLAB Central (eg. from Jianwen Luo, YangQuan Chen or Vassili Pastushenko), but it is optimized for speed by using a C-Mex function for the... Platforms: Matlab

The code was generated according toT.S. Durrani, and R. Chapman. Optimal All-Pole Filter Design Based on Discrete Prolate Spheroidal Sequences. IEEE Transactions on Acoustics, Speech and Signal processing, Vol ASSP-32, No.4, August 1984.This filter design uses discrete prolate spheroidal... Platforms: Matlab

FAUST (Functional Audio Stream) is a functional programming language specifically designed for real-time signal processing and synthesis. FAUST targets high-performance signal processing applications and audio plug-ins for a variety of platforms and standards. The Faust compiler translates DSP... Platforms: Windows, Mac, BSD, Linux

Through a simple GUI, the user can select a signal by entering its name and its new name.The script can take inputs as simple strings, or Excel files.In the Excel file, there should be the names of signals to be replaced and the name to be replaced with. Platforms: Matlab

JMathStudio is a pure Java based object oriented digital image and signal processing library. This library/toolkit provides a Java developer with many of the advanced and basic discrete image and signal processing ( 500+ useful operations/transforms) capabilities. This is a standalone toolkit... Platforms: Windows, Mac, Linux

The function implement the 1D Walash Transform which can be used in signal processing,pattern recognition and Genetic algorithms. The Formula of 1D Walsh Transform is defined as : N-1 q-1 ---- -- 1 | | b[i](m)*b[q-1-i](u) W(u) = --- / f(m)| | (-1) ,u = 0,...,N-1 N ---- | | m=0 i=0 where for... Platforms: Matlab

The script uses only one transmission symbol per frequency hop. Platforms: Matlab

This block for Simulink provides a chirp source for stimulating unknown system dynamics. The block has been developed specifically for the purpose of system identification, however it should be of interest to anyone looking for a robust and flexible chirp function. The chirp function is modelled... Platforms: Matlab

The Modular toolkit for Data Processing (MDP) is a Python data processing framework. From the user's perspective, MDP is a collection of supervised and unsupervised learning algorithms and other data processing units that can be combined into data processing sequences and more complex... Platforms: Windows, Mac, Linux