Spectral Estimation

This demo uses sound to identify the location of an object. The listening array is two microphones, which will allow us to estimate the position along the straight line between the microphones. Location estimation is based solely on the rms value of the noise measured at the two microphones. Note...

Add, move and delete points to form a desired spectral curve.The result can be saved to workspace as linear or minimum phase FIR.

In many practical signal processing problems, the objective is to estimate from measurements a set of constant parameters upon which the received signals depend.For example, high-resolution direction-of-arrival (DOA) estimation is important in many sensor systems such as radar, sonar, electronic...


Platforms: Matlab

This GUI program simulates Voigt spectral lineshape and absorption spectrum from HiTRAN output file. The Voigt spectral lineshape is simulated from the convolution of Guassian and Lorentzian lineshape numerically. Absorption spectrum is calculated consequently and can be compared with...


Platforms: Matlab

Non Convex Optimization Algorithms for Group SparsitySolves a dummy OFDM sparse channel estimation problemReweighted Lm,p algorithm for noiseless case min||x||_m,p s.t. y = AxReweighted Lm,p algorithm for noisy case min||x||_2,p s.t. ||y - Ax||_qSmoothed L2,0 algorithm solves a smooth version...


Platforms: Matlab

The Kalman filter is actually a feedback approach to minimize the estimation error in terms of sum of square. This approach can be applied to general nonlinear optimization. This function shows a way using the extended Kalman filter to solve some unconstrained nonlinear optimization problems. Two...


Platforms: Matlab

This toolbox was designed to simulate and fit linear state space models. The main literature I used for this particular package is Kim and Nelson (1999). A state space model (without non stochastic coefficients) is given by:y(t)=beta(t)*x(t)'+e(t)...


Platforms: Matlab

Similar to using the extended Kalman filter, Neural Networks can also be trained through parameter estimation using the unscented Kalman filter. This file provides a function for this purpose. It also includes an example to show how to use this function. It requires the unscented Kalman filter,...


Platforms: Matlab

For a detailed description please refer to A. Meucci (2008) "Estimation of Structured t-Copulas"Latest version of article and code available at http://symmys.com/node/134


Platforms: Matlab

This script simulates an electromagnetic pulse, a spectral phase interferometry for direct electric field reconstruction (SPIDER) measurement and reconstruction and compares it to the true electric field in time in the presence of noise (additive, multiplicative, quantative and in the delay).Play...


Platforms: Matlab

Three case studies: random matrix theory for estimation vs. cross-sectional model for attribution; hedging based on full-repricing instead of Black-Scholes deltas; heuristcs for best K attribution/hedging factors out NTo walk through the code and for a thorough description, seeMeucci A., "Factors...


Platforms: Matlab

The solution of the nearest correlation matrix applies the hypershpere or spectral decomposition methods as outlined in Monte Carlo methods in Finance by Peter Jackel, Chapter 6.Use CorrelationExample.m that applies a simple example for the two cases.


Platforms: Matlab

FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in...


Platforms: *nix

Specview is a Java GUI_based application for 1-D spectral visualization and analysis of astronomical spectrograms generated by a variety of observatories and instruments.


Platforms: *nix

Spikoscope helps browse and analyze electrophysiological recordings, through filtering, detection of events and frequency estimation, in intra- and extracellular signals. Spikoscope generates/prints common and some original analysis figures.


Platforms: Windows

GlobMoeSt means Global Motion eStimation. Currently, the program works by determining the global motion vectors between each two subsequent frames via an exhaustive search within a specified motion search range, which can tweaked depending on the input data. Nonlinear motion is supported....


Platforms: *nix

SoundRuler is a tool for acoustic analysis, graphing and teaching. It interactively recognizes and measures 35 temporal and spectral properties of each sound in a file. It also features several measurement, graphing and didactic modules.


Platforms: Mac

Statistics::PointEstimation is a Perl module for computing confidence intervals in parameter estimation with Students T distribution. Statistics::PointEstimation::Sufficient - Perl module for computing the confidence intervals using sufficient statistics SYNOPSIS # example for...


Platforms: *nix

With MP3 Bitrate Changer you can change MP3 bitrate of your songs, so you can easily send MP3 audio to your mobile device, cell phone, or as an E-mail attachment. MP3 Bitrate Changer creates audio preview and file size estimation of future result before actual conversion-bitrate change, so you...


Platforms: Windows

Match the overall spectral content of a target signal to that of a source signal, but Repli-Q has the flexibility for many other uses. Repli-Qs spectral matching is invaluable in mastering, and can improve the sound of an improperly equalized track. Repli-Q can also aid in ensuring optimized...


Platforms: Mac