Multirate DSP, part 1: Upsampling and downsamplingLi Tan
Upsampling and Downsampling For the DTFT, we proved in Chapter 2 (p. p. ) the stretch theorem (repeat theorem) which relates upsampling (``stretch'') to spectral copies (``images'') in the DTFT context; this is the discrete-time counterpart of the scaling theorem for continuous-time ...
No Information Loss:Unlike downsampling, which removes data points from the majority class, upsampling generates new data points, avoiding any information loss. Increase Data at Low Costs:Upsampling is especially effective, and is often the only way, to increase dataset size on demand in cases whe...
The output data is sampled at every N-th cycle where N is the down sampling rate. The output data is then held constant for the next n input cycles. In my design I have to use this Up Sampling block but with the option to hold the output data constant. Does anyone know how to...
(1) by the time you got down around audible frequencies you wouldn't get much leakage, so it would help stop aliasing; and (2) the filter wouldn't need a sharp cutoff, so it wouldn't ring. The industry pretty rapidly settled on "8x oversampling" as a standard, meaning 44.1kHz ...
An apparatus and method for creation of reordered vectors from sequential input data for block based decimation, filtering, interpolation and matrix transposition using a memory circuit for a Single Instruction, Multiple Data (SIMD) Digital Signal Processor (DSP). This memory circuit includes a two-...
A time discrete filter comprises a sampling rate converter provided with an input and an output, and a down-sampler having a down-sampling factor nd. The time discrete filter further comprises an up-sampler having an up-sampling factor nu, whereby the up-sampler is coupled to the converter ...
The output data is sampled at every N-th cycle where N is the down sampling rate. The output data is then held constant for the next n input cycles. In my design I have to use this Up Sampling block but with the option to hold the output data constant. Does anyone know how to...
The output data is sampled at every N-th cycle where N is the down sampling rate. The output data is then held constant for the next n input cycles. In my design I have to use this Up Sampling block but with the option to hold the output data constant. Does anyone know how to...
The output data is sampled at every N-th cycle where N is the down sampling rate. The output data is then held constant for the next n input cycles. In my design I have to use this Up Sampling block but with the option to hold the output data constant. Does anyone know how to...