Periodic Random Noise Waveform

Generates a waveform containing periodic random noise (PRN). Details

reset signal resets the phase to the phase control value and the timestamp to zero. The default is FALSE.
spectral amplitude is the magnitude of the frequency domain components of the Periodic Random Noise.
If seed > 0, the seed value is used to reseed the noise sample generator. The default is -1. If seed 0, the noise generator is not reseeded and resumes producing noise samples as a continuation of the previous noise sequence.
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurs before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
sampling info contains sampling information.
Fs is the sampling rate in samples per second. The default is 1000.
#s is the number of samples in waveform. The default is 1000.
signal out is the generated waveform.
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

Periodic Random Noise Waveform Details

The output array contains all frequencies which can be represented with an integral number of cycles in the requested number of samples. Each frequency-domain component has a magnitude of the input spectral amplitude and random phase. Another way of thinking of the output array of PRN, is that it is a summation of sinusoidal signals with the same amplitudes but with random phases. The unit of spectral amplitude is the same as the output PRN unit, and is a linear measure of amplitude, much like the other signal generation VIs.