TFA Adaptive Expansion VI

Owning Palette: Time Frequency Transform VIs

Requires: Advanced Signal Processing Toolkit

Reconstructs a signal from the Gaussian chirplet elementary functions. Wire data to the signal input to determine the polymorphic instance to use or manually select the instance.

Example

TFA Adaptive Expansion (Waveform)

	sampling info specifies the sampling information of the reconstructed signal. sampling rate specifies the sampling rate of the reconstructed signal in hertz. sampling rate must be greater than 0, or this VI sets sampling rate to 1 automatically. length specifies the length, in samples, of the reconstructed signal. The default is –1, which specifies that length equals the largest value of center + 4×standard deviation.
	chirplet info specifies the parameters of each elementary function. amplitude specifies the complex amplitude of the chirplet or Gaussian pulse. standard deviation specifies the standard deviation of the Gaussian envelope in seconds. center specifies the central time of the Gaussian envelope in seconds. frequency specifies the central frequency of the chirplet in hertz. chirp rate specifies the sweep rate of the carrier sine wave in hertz per second.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	signal returns the reconstructed signal.
	error out contains error information. This output provides standard error out functionality.

TFA Adaptive Expansion (Real)

	sampling info specifies the sampling information of the reconstructed signal. sampling rate specifies the sampling rate of the reconstructed signal in hertz. sampling rate must be greater than 0, or this VI sets sampling rate to 1 automatically. length specifies the length, in samples, of the reconstructed signal. The default is –1, which specifies that length equals the largest value of center + 4×standard deviation.
	chirplet info specifies the parameters of each elementary function. amplitude specifies the complex amplitude of the chirplet or Gaussian pulse. standard deviation specifies the standard deviation of the Gaussian envelope in seconds. center specifies the central time of the Gaussian envelope in seconds. frequency specifies the central frequency of the chirplet in hertz. chirp rate specifies the sweep rate of the carrier sine wave in hertz per second.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	signal returns the reconstructed signal.
	error out contains error information. This output provides standard error out functionality.

TFA Adaptive Expansion (Complex)

	sampling info specifies the sampling information of the reconstructed signal. sampling rate specifies the sampling rate of the reconstructed signal in hertz. sampling rate must be greater than 0, or this VI sets sampling rate to 1 automatically. length specifies the length, in samples, of the reconstructed signal. The default is –1, which specifies that length equals the largest value of center + 4×standard deviation.
	chirplet info specifies the parameters of each elementary function. amplitude specifies the complex amplitude of the chirplet or Gaussian pulse. standard deviation specifies the standard deviation of the Gaussian envelope in seconds. center specifies the central time of the Gaussian envelope in seconds. frequency specifies the central frequency of the chirplet in hertz. chirp rate specifies the sweep rate of the carrier sine wave in hertz per second.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	signal returns the reconstructed signal.
	error out contains error information. This output provides standard error out functionality.

Example

Refer to the Adaptive Transform (ADT) and Adaptive Expansion (ADE) VI in the labview\examples\Time Frequency Analysis\TFAFunctions directory for an example of using the TFA Adaptive Expansion VI.