Freeware Listing: Calculates
- Calculates the distance between two points
- License: Freeware

This routine calculates the distance between two points (given the latitude/longitude of those points). It is being used to calculate the distance between two ZIP Codes or Postal Codes using our ZIPCodeWorld(TM) and PostalCodeWorld(TM) products..
- Publisher: CTY
- Date: 23-11-2011
- Platform: PHP, Scripts
- Statistical Calculator
- License: Freeware

Statistical Calculator calculates minimum, maximum, mean, median, mode, percentage unique, range, midrange, standard deviation, quartiles and more..
- Publisher: scatterchart.com
- Date: 23-02-2013
- Size: 10 KB
- Platform: CGI and Perl, Scripts
- Shock Response Spectrum
- License: Freeware

This program calculates the shock response spectrum for a base input, where the base input is in the form of an acceleration time history..
- Publisher: Tom Irvine
- Date: 12-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Vibration Response Spectrum
- License: Freeware

This program calculates the Vibration Response Spectrum (VRS) for a base input Power Spectral Density (PSD). The base input PSD must be in terms of acceleration. The VRS uses point-by-point multiplication of the transmissibility function times the base input PSD. It is thus more accurate than Miles equation..
- Publisher: Tom Irvine
- Date: 20-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- BER Curve for QPSK in Gaussian Environment
- License: Freeware

This program calculates BER curve against SNR for QPSK Modulation in Gaussian Environment. It calculates 100 errors for for each SNR value before calculating BER. This gives a good approximation of BER. I hope this will help students alot. Please feel free to contact me should anyone has any queries..
- Publisher: Shah Gul Khan
- Date: 10-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- zoom FFT
- License: Freeware

This program calculates the non-destructive zoom Fast Fourier transform of a time history. The input file must be time(sec) and amplitude(units) Reference: Randall, Frequency Analysis, Bruel & Kjaer, page 170..
- Publisher: Tom Irvine
- Date: 26-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- 2 element antenna array with spherical rotation
- License: Freeware

This file takes a patch antenna and a dipole, rotates the dipole, and calculates the overall output levels, taking into consideration the array pattern, and a variable combiner. There are extensive comments to show what was being attempted, and some commented out sections to show how the file was debugged and some variations of analysis that could be done..
- Publisher: Rick McConnell
- Date: 10-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Power Spectral Density
- License: Freeware

This script calculates the PSD of a time history. It prompts the user for parameters related to the spectral resolution and the number of statistical-degrees-of-freedom..
- Publisher: Tom Irvine
- Date: 19-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- BER Curve for BPSK in Rayleigh Channel
- License: Freeware

This file calculates BER for or a number of SNR values in Rayleigh Channel. Every BER value has been calculated for 100 errors for precision results. I hope script will help students..
- Publisher: Shah Gul Khan
- Date: 12-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Time Window Based Cross-correlation
- License: Freeware

This code calculates the cross-correlation for specified time windows over the duration of two input signals. The time windows can be shifted by increments smaller than the time window length. The code is based upon the 'xcorr' function..
- Publisher: Tim Streeter
- Date: 03-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Log Spectral Distance
- License: Freeware

Calculates the average log-spectral distance between CLEAN and NOISY signals. It has the capability of calculating this distance for a specified sub-band as well. This measure is used for evaluation of processed speech quality in comparison to the original speech..
- Publisher: Esfandiar Zavarehei
- Date: 02-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Rader Autocorrelation
- License: Freeware

This M-File calculates the autocorrelation of a random process by the method of Rader (mentioned e. g. in Karl Kammeyer, "DIGITALE SIGNALVERARBEITUNG : Filterung und Spektralanalyse"): Y=akfrader(X,[M]) X: stationary random process (Vektor) Y: autocorrelation (Vector of length M) M: number for subsequence splitting, Length of resulting autocorrelation function [optional, default is 64].
- Publisher: Andreas Geissler
- Date: 10-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Circular Cross Correlation of the Columns of an Array - circ xcorr
- License: Freeware

The program takes the columns of an input matrix and calculates the auto and cross correlation of these columns using an fft method. The result is very similar to the xcorr function. This method could be used to evaluate the cross correlation of repeating code sequences, and other similar investigations. An n x m matrix in will result in an n x m^2 matrix out. There is a waitbar included to remove the mystery of how long the calculation will take..
- Publisher: Rick McConnell
- Date: 21-02-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- ECG Beat Calculation
- License: Freeware

This program calculates the beats per minute of of an ECG signal. The data file should be in 'csv' format. The output will be an averaged value, since normal ecg of a person is not always constant. There maybe drifts and variations. The percentage error for six seconds of the ecg will be 60/sampling frequency..
- Publisher: Arun Kumar
- Date: 18-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- LO Sideband with spurs converted to Jitter
- License: Freeware

This program converts the noise sidebands to power, adds in an estimate of the power for CW spurs, then calculates the jitter from this. It is not really exact, but it is simple and allows for an easy estimate of the jitter and phase noise without special tools..
- Publisher: Rick McConnell
- Date: 12-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- rms_exp.m
- License: Freeware

Calculates exponential averaged RMS of a signal using the specified windowlength as the time constant. Useful for computing sound pressure level from microphone data. Uses digital filter. Much faster than cumsum..
- Publisher: Scott Copeland
- Date: 23-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- LP Log Spectral Distance
- License: Freeware

Calculates the average log-spectral distance between CLEAN and NOISY signals. Has the option of calculating this distance for speech active periods only. Also you can select a frequency range to study the distance in a sub-band..
- Publisher: Esfandiar Zavarehei
- Date: 08-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- tf2dspiciirc
- License: Freeware

This file calculates iir canonic coefficients for a dspic (30F6014) for a given filter transfer function. It is a Pre Release and may not work correctly, but I hope you may help in debugging..
- Publisher: Moret Louis
- Date: 06-03-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Level crossings
- License: Freeware

LC_FAST calculates how many times a given input signal crosses a set of levels. It is much faster than traditional algorithms being designed to handle big datasets..
- Publisher: roberto madia
- Date: 22-01-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Inverse Kinematic for 6DOF arm
- License: Freeware

Anthropomorphic arm with 6 DOF and spherical wrist It calculates the Inverse Kinematic of an Anthropomorphic arm with 6 DOF. 'q' is the solutions in radiant and K is the direct Kinematic matrix. K = [ n s a p; 0 0 0 1] where n, s, a are three vectors fo 3 elements that represents the end-effector's orientation, and p is the desired end-effector position..
- Publisher: Andrea Cirillo
- Date: 01-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
Calculates: Freeware | All







