可计算满足一定条件点数的DFT 离散傅里叶变换> 但其复杂的控制使得专用硬件电路的实现较为困难 因此目前使用最多的FFT仍是Cooley-Tukey算法 现有的FFT处理器往往占用大量的硬件资源 这就大大提高了芯片制造的成本 同时过大的芯片面积也影响了产品的集成度提高 如文献[1]中所提到的FFT处理器的设计 消耗了大量的RAM...
Channel switch, operating in the frequency domain, particularly suitable for satellite applications, essentially consisting (Fig. 3) of calculation processors (7) (DFT), a switching matrix (10), other calculation processors (IDFT). This switch is particularly suited for the switching of transmission...
BasicelementsontelecommunicationsKeytechniquesandmainalgorithmsineachcommunicationmodelsChallengesencounteredindesigningwiredandwirelesscommunicationssystems •CDMA,OFDM 2 Chapter1 BasicConceptsofCommunicationSystems •Discreteandcontinuous•Signalbandwidth(lowpass,highpass,bandpass)•Randomprocesses(PSD,Correlation)...
The SSP design is realized using recursive subband decomposition techniques for achieving minimal hardware and power consumption. Recursive implementations of discrete Fourier transform (DFT) and discrete cosine transform (DCT) are presented for subband decomposition which result in sparse transform operations...
Using the involutory property that is shared between DFT and IDFT, and also DHT and IDHT as well as between DFT and DHT to reduce the computational complexity of combining DFT and DHT into a single-processing block, this study achieves a significant computational reduction from 𝒪(2𝑁log...
(RDFT) Processor for the Computations of DFT and Inverse Modified Cosine Transform (IMDCT) in a Digital Radio Mondiale (DRM) and DRM+ Receiver Shin-Chi Lai, Yueh-Shu Lee and Sheau-Fang Lei * Department of Electrical Engineering, National Cheng Kung University, 701 Tainan, Taiwan; E-Mails:...
transform (DFT), the dual-tree complex wavelet transform (DTCWT), the adaptation of the machine learning algorithm GMLVQ to complex-valued feature space using Wirtinger calculus [15] and the back transformation of the classifiers that retains interpretability in the original time domain of the ...
Channel switch, operating in the frequency domain, particularly suitable for satellite applications, essentially consisting (Fig. 3) of calculation processors (7) (DFT), a switching matrix (10), other calculation processors (IDFT). This switch is particularly suited for the switching of transmission...
Channel switch, operating in the frequency domain, particularly suitable for satellite applications, essentially consisting (Fig. 3) of calculation processors (7) (DFT), a switching matrix (10), other calculation processors (IDFT). This switch is particularly suited for the switching of transmission...
switch to channel functioning in the domain of frequency, particularly suitable for satellite applications, consisting essentially of (fig. 3).3) by computing processors (7) (dft), a switching matrix (10), the other procesori calculation (9) (idft)as the number of processors for calculating ...