Index-> contents reference index search Up-> SPT_HELP SPTFunctionsByCategory Prev Next SPT_HELP-> SPTFunctionsByCategory Mathematical Functions Data Manipulation Functions SignalGeneratorMain AnalogFilterFunctions FIR Filter Design Window Functions IIR Filter Design FourierFunctions Plotting Functions Histogram Functions SPTFunctionsByCategory Headings-> MATHEMATICAL FUNCTIONS DATA MANIPULATION FUNCTIONS SIGNAL GENERATOR FUNCTIONS ANALOG FILTER DESIGN FIR FILTER DESIGN WINDOW FUNCTIONS IIR FILTER DESIGN FOURIER TRANSFORMS AND SPECTRAL ESTIMATION PLOTTING AIDS HISTOGRAMS

SPT Functions by Category
``` ```SECTIONS: ``` ```MATHEMATICAL FUNCTIONS ``` ```DATA MANIPULATION FUNCTIONS ``` ```SIGNAL GENERATOR FUNCTIONS ``` ```ANALOG FILTER DESIGN ``` ```FIR FILTER DESIGN ``` ```WINDOW FUNCTIONS ``` ```IIR FILTER DESIGN ``` ```FOURIER TRANSFORMS AND SPECTRAL ESTIMATION ``` ```PLOTTING AIDS ``` ```HISTOGRAMS ``` ```MATHEMATICAL FUNCTIONS ``` ```
 colavg Column-wise Average Value of A Matrix colmsq Column-wise Mean-Square value of matrix colrms Column-wise Root-Mean-Square (RMS) of a Matrix db10 Conversion to dB (decibels) in 10*log10 Form db20 Conversion to dB (decibels) in 20*log10 Form even Determining if an Input is Even-valued logn Logarithm to an Arbitrary Base powerof2 Determine if a Number is a Power-of-2 sinc The sinc(x) Function
``` ```Useful Data/Signal Statistical Functions in O-Matrix
 OtherMathStat Other Useful Math/Statistical Functions in O-Matrix
``` ```DATA MANIPULATION FUNCTIONS ``` ```
 angle Angle Corresponding to a Complex Value [O-Matrix Function] revolve Shift Matrix Rows in Circular Fashion shift Shift Matrix Rows with Zero-Fill expand Expand Matrix Rows by Sample-Repetition zeropad Zeropad a Matrix in Row Direction interpfft Matrix Column interpolation Via DFT resample Resample a Matrix by Ratio of Intergers delavg Delete Average from Matrix Columns
``` ```Other Useful Data Manipulation Functions in O-Matrix
 OtherData Other Data Manipulation Functions in O-Matrix
``` ```SIGNAL GENERATOR FUNCTIONS ``` ```Binary Bit Generators
 binbits Random Binary Bits Function nrzbits Randon Non-Return-Zero Binary Data
``` ```Gaussian Noise Generators
``` ```Simple Waveform Generators
 sinwave Create a SINEWAVE Waveform triwave Create a TRIANGULAR Waveform sawwave Create a SAWTOOTH Waveform sqrwave Create a SQUAREWAVE Waveform
``` ```Modulated Carrier Generators
 ammod Amplitude Modulation Function pmmod Phase Modulation Function fmmod Frequency Modulation Function quadmod Quadrature Modulation Function
``` ```Random Number Generators in O-Matrix
 RandNumGens Random Number Generators in O-Matrix
``` ```Other Signal Creation Functions in O-Matrix
 OtherSigGen Other Useful Signal Constructors in O-Matrix
``` ```ANALOG FILTER DESIGN ``` ```Normalized Filter Design Functions
 fnbut Normalized Butterworth Lowpass Filter fncheb1 Normalized Chebyshev Type 1 Lowpass Filter fncheb2 Normalized Chebychev Type 2 Lowpass Filter fnbes Normalized Bessel Lowpass Filter Transfer Function
``` ```Filter Conversion Functions
 fn2clp Converting From A Normalized To Continuous Lowpass Filter [O-Matrix function] fn2chp Converting From A Normalized To Continuous Highpass Filter fn2cbp Converting From A Normalized To Continuous Bandpass Filter [O-Matrix function] fn2cbs Converting From A Normalized To Continuous Bandstop filter.
``` ```Other Related Functions
 fnbpole Poles Of A Normalized Butterworth Filter [O-Matrix Function] fnc1pole Poles of a Normalized Chebyshev TYPE 1 Analog Lowpass Filter polbes Bessel polynomials of Order N gains Complex Gain of a Laplace Transfer Function
``` ```Design Tools
 makealog Analog Filter Design Tool
``` ```FIR FILTER DESIGN ``` ```FIR Filter Design Functions
 linfir Linear-phase FIR Filter Design pwlfir Piecewise Linear FIR Filter Design hilbert Hilbert Transformer FIR Design rcfir Raisied Cosine FIR Filter Function srrcfir Raisied Cosine FIR Filter Function pbfir Parks-Burrus Style FIR Filter Design
``` ```Design Tools
 makercos Raised Cosine Filter Design Tool
``` ```WINDOW FUNCTIONS ``` ```
 blackman Blackman Window Function blackharris3 Blackman-Harris 3 Window Function gaussian Gaussian Data Window hamming Hamming Data Window hanning Hanning Data Window kaiser Kaiser Window Function nuttall Nuttall Data Window triang Triangular Data Window winddata Window an Input Matrix
``` ```IIR FILTER DESIGN ``` ```Filter Conversion Functions
 fn2dlp Converting From A Normalized To Digital Lowpass Filter [O-Matrix function] fn2dhp Converting From A Normalized To Digital Highpass Filter fn2dbp Converting From A Normalized To Digital Bandpass Filter [O-Matrix function] fn2dbs Converting From A Normalized To Digital Bandstop Filter fc2dig Converting From A Continuous To Digital Filter [O-Matrix Function]
``` ```Other Related Functions
 iirfilt1 Filtering With a DIRECT FORM I IIR gainz Complex Gain of a Rational Digital Transfer Function
``` ```Design Tools
 makeiir IIR Filter Design Tool
``` ```FOURIER TRANSFORMS AND SPECTRAL ESTIMATION ``` ```Fourier Transforms
 fft Fast Fourier Transform ifft Inverse Fast Fourier Transform dft2d Two Dimensional Discrete Fourier Tranform idft2d REVERSE Two-Dimensional Discrete Fourier Transform
``` ```Spectral Estimation
 welch Spectral Averaging via the Welch-Method stft Short-Tine-Fourier-Transfrom (STFT)
``` ```PLOTTING AIDS ``` ```
 freqaxis Create a frequency axis vector timeaxis Create a Time Axis Vector fcplot Plotting The Response Of A Continuous Filter [O-Matrix Function] fdplot Plotting The Response Of A Digital Filter [O-Matrix Function]
``` ```HISTOGRAMS ``` ```
 histo Histogram of Data Matrix
``` ```