Chirp-Z transform efficiently computes frequency spectra. (The Chirp-Z-transform algorithm) (includes related articles on sampling data, simplifying the inverse transform, and CZT calculations) (technical)Lyons, Timothy D
This analysis can thus be implemented using the chirp z-transform algorithm, and is discussed for the specific case of loudspeaker impulse-response measurements. 展开 关键词:Acoustic reflection Chirp Filters Fourier transforms Frequency Humans Loudspeakers Signal processing Smoothing methods Spectral analysis...
To develop and test a new algorithm for fast direct Fourier transform (DrFT) reconstruction of MR data on non-Cartesian trajectories composed of lines with equally spaced points.Theory and MethodsThe DrFT, which is normally used as a reference in evaluating the accuracy of other reconstruction meth...
This paper describes the first algorithm for computing the inverse chirp z-transform (ICZT) in O(n log n) time. This matches the computational complexity of the chirp z-transform (CZT) algorithm that was discovered 50 years ago. Despite multiple previous attempts, an efficient ICZT algori...
This paper shows that the inverse chirp z-transform (ICZT), which generalizes the inverse fast Fourier transform (IFFT) off the unit circle in the complex plane, can also be used with chirp contours that perform partial or multiple revolutions on the unit circle. This is done as a special...
Methods based on the chirp z transform (CZT) and on interpolation using finite‐impulse response (FIR) filters are shown to be the most efficient, although beamforming based on Goertzel's algorithm is also competitive when the beams are formed in conjugate pairs. 展开 ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook Thesaurus Encyclopedia Chirp´er n.1.One who chirps, or is cheerful. Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co. ...
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Whitepapers The Inverse Chirp-Z Transform for VNA Time Domain ProcessingThe Inverse Chirp-Z Transform for VNA Time Domain Processing Copper Mountain Technologies More white papers from Copper Mountain Technologies » Download Whitepaper In an earlier paper, “VNA Time Domain Processing”, ...
In digital signal processing, the Inverse Chirp Z-Transform (ICZT) is a generalization6 of the Inverse Fast Fourier Transform (IFFT). This transform is parametrized by the complex numbers A and W. They define a logarithmic spiral contour formed by the sampling points AW−k where k∈{0,1...