Introduction to decimation.
Representation, analysis, and design of discrete time signals and systems. Review of Z-transforms, discrete-time Fourier transforms, and difference equations. Discrete-time processing of continuous-time signals. Decimation, interpolation, and sampling rate conversion. Flowgraph structures for DT systems. Time-and frequency-domain design techniques for recursive (IIR) and non-recursive (FIR) filters. Linear prediction. Discrete Fourier transform, FFT algorithm. Short-time Fourier analysis and filter banks. Multirate techniques. Hilbert transforms, Cepstral analysis, various applications.
Discusses how polyphase filters can be used as intersample delay filters.
A sample-rate compressor removes (D-1) of every D input samples. A sample-rate expander inserts (U-1) zeros after every input sample.
You will implement a multirate system that includes three finite impulse response filters. The sample-rate compression and expansion factors can be controlled in real time using a MATLAB graphical user interface.
You will implement a multirate system that includes three finite impulse response filters. The sample-rate compression and expansion factors can be controlled in real time using a MATLAB graphical user interface.
You will implement a multirate system that includes three fininte impulse response filters. The sample-rate compression and expansion factors can be controlled in real time using a MATLAB graphical user interface.
You will implement a multirate system that includes three finite impulse response filters.
You will implement a multirate system that includes three finite impulse response filters. The sample-rate compression and expansion factors can be controlled in real time using a MATLAB graphical user interface.
You will implement a multirate system that includes three finite impulse response filters. The sample-rate compression and expansion factors can be controlled in real time using a MATLAB graphical user interface.
You will implement a multirate system that includes three finite impulse response filters.
A sample-rate compressor removes (D-1) of every D input samples. A sample-rate expander inserts (U-1) zeros after every input sample.
A sample-rate compressor removes (D-1) of every D input samples. A sample-rate expander inserts (U-1) zeros after every input sample.
A sample-rate compressor removes (D-1) of every D input samples. A sample-rate expander inserts (U-1) zeros after every input sample.
ダウンサンプル比Dのダウンサンプラは、DサンプルにつきD-1個のデータを間引き、信号のレートを減少する。アップサンプル比Uのアップサンプラは、サンプル値データ間にU-1個のゼロ値データを挿入し、信号のレートを増加する効果を有している。これらは時変要素を含むため、線形時不変システムの条件を緩和し、信号処理の自由度を飛躍的に向上することを可能としている。ダウンサンプラとアップサンプラは単純な処理ではあるが、非常に深い意味を有している。
This module covers the fundamentals of multistage decimation.
Implementation of polyphase decimation filters.
Describes the process of resampling, or sample-rate conversion.
Down sampling, subsampling, and decimation of discrete time signals can be studied using Fourier transforms.
