DSP Blockset

Displaying Matrices

The Matrix Viewer block provides general matrix display capabilities that can be used with all matrix signals (frame-based and sample-based).

Example: Displaying Matrices

In the model below, a matrix of shifted sinusoids is displayed with the Matrix Viewer block.

To build the model, specify the following parameter values in the Sine Wave block:

• Amplitude = 1
• Frequency = 100
• Phase offset = 0:pi/64:pi

Specify the following parameter values in the Submatrix block:

• Row span = All rows
• Column span = Range of columns
• Starting column = First
• Ending column = Offset from last
• Ending column offset = 1

Specify the following parameter values in the Reshape block:

• Output dimensionality = Customize
• Output dimensions = [8,8]

Specify Colormap matrix = bone(256) in the Image properties pane of the Matrix Viewer block.

When you run the model, the Matrix Viewer displays each 8-by-8 matrix as it is received. The 256 shades in the specified bone colormap are mapped to the range of values specified by the Minimum input value and Maximum input value parameters; see colormap for more information. In this example, these values are -1.0 and 1.0 respectively, which are appropriate for the sinusoids of amplitude 1 that compose the input signal.

Displaying Signals in the Frequency-Domain

Delay and Latency