Computes the inverse of the real Walsh Hadamard transform of a sequence.
The input sequence.
The length of the sequence must be a power of 2, otherwise this node returns an error.
This input accepts a double-precision, floating-point number or a 1D array of double-precision, floating-point numbers.
Length of each set of data. The node performs computation for each set of data.
sample length must be greater than zero.
This input is available only if you wire a double-precision, floating-point number to Walsh-Hadamard{x}.
Default: 100
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
Default: No error
The inverse Walsh Hadamard transform of the input sequence.
Error information.
The node produces this output according to standard error behavior.
Standard Error Behavior
Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.
If WH{X} denotes the Walsh Hadamard transform of a sequence X and WHI{X} denotes the inverse Walsh Hadamard transform, then:
Furthermore, the following equation is valid:
where n is the length of X.
Where This Node Can Run:
Desktop OS: Windows
FPGA: This product does not support FPGA devices
Web Server: Not supported in VIs that run in a web application