2.11.4 conv

Contents

Menu Information

Analysis: Signal Processing: Convolution

Brief Information

Compute convolution of two signals

Command Line Usage

1. conv ix:= Col(1) response:= Col(2);

2. conv ix:= Col(1) response:= Col(2) n:=1;

3. conv ix:=Col(1) response:=Col(2) wrap:=1;

4. conv ix:=Col(1) response:=Col(2) circular:=circular;

5. conv ix:=Col(1) response:=Col(2) norm:=0 wrap:=0 circular:=circular oy:=[Book2]1!(col(1),col(2));

X-Function Execution Options

Please refer to the page for additional option switches when accessing the x-function from script

Variables

Display
Name 		Variable
Name 		I/O
and
Type 		Default
Value 		Description
Signal ix

Input

vector

<active>

Specifies the signal.

Response response

Input

vector

<active>

Specifies the response.

Sampling Interval interval

Input

double

1.0

Specifies the sampling interval. The default is <auto>, which corresponds to an automatically-computed interval.

Normalize Response norm

Input

int

0

Specifies whether the response should be normalized

Wrap Response wrap

Input

int

0

Specifies whether the response should be wrapped

Convolution Type circular

Input

int

linear

Specifies whether the convolution is linear or circular

Option list

  • linear :Linear
    Linear convolution will be computed. Data points outside the input range will be viewed as zeros.
  • circular:Circular
    Circular convolution will be computed. Data points outside the input range will be viewed as repetition of the data points within the range.
Output oy

Output

XYRange

<new>

Specifies the output range.

See the syntax here.


Examples

1. To perform a linear convolution with the signal in Column 1 and the response in Column 2 of the active worksheet, use the script command: conv ix:=col(1) response:=col(2)

2. To perform a circular convolution with the signal in Column 1 and the response in Column 2 of the active worksheet, use the script command: conv ix:=col(1) response:=col(2) circular:=1

Conv help English files image012.gif
Conv help English files image014.gif

More Information

For more informatioin, please refer to our User Guide.


Related X-Functions

fft1, ifft1, deconv

Keywords:convolute, linear, circular, wrap