## uses+fast+hartley+transform

### Hartley transform - Wikipedia

In mathematics, the Hartley transform (HT) is an integral transform closely related to the Fourier transform (FT), but which transforms real-valued functions to real-valued functions. It was proposed as an alternative to the Fourier transform by Ralph V. L. Hartley in 1942, and is one of many known Fourier-related transforms.Compared to the Fourier transform, the Hartley transform has the ...

### The fast Hartley transform - IEEE Journals & Magazine

Abstract: A fast algorithm has been worked out for performing the Discrete Hartley Transform (DHT) of a data sequence of N elements in a time proportional to Nlog 2 N. The Fast Hartley Transform (FHT) is as fast as or faster than the Fast Fourier Transform (FFT) and serves for all the uses such as spectral analysis, digital processing, and convolution to which the FFT is at present applied.

### Discrete Hartley transform - Wikipedia

A discrete Hartley transform (DHT) is a Fourier-related transform of discrete, periodic data similar to the discrete Fourier transform (DFT), with analogous applications in signal processing and related fields. Its main distinction from the DFT is that it transforms real inputs to real outputs, with no intrinsic involvement of complex numbers.Just as the DFT is the discrete analogue of the ...

### Fast Hartley transform - ALGLIB, C++ and C# library

Fast Hartley transform. Discrete Hartley transform is an analogue of discrete Fourier transform for real data. The Hartley transform takes a real sequence as an input. The result is also a real sequence: For some time it was considered that Hartley transform can be a faster alternative to the real Fourier transform, but later it was found out ...

### The fast Hartley transform used in the analysis of ...

The fast Hartley transform (FHT) is a real transform which is very similar to the fast Fourier transform (FFT). The FHT has many of the useful properties of the FFT, however it is a purely real transformation, thereby yielding computational advantages. Several properties of the FHT when used in power systems are addressed, including ...
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