单速率滤波器
R2026a使用 DSP System Toolbox™ 中的各种函数、System object 与模块设计和实现 FIR 与 IIR 单速率滤波器。这些功能使您能够在 MATLAB® 和 Simulink® 中对流信号进行滤波。
对象
函数
模块
 | Analytic Signal | Compute analytic signals of discrete-time inputs |
 | Differentiator Filter | Direct form FIR fullband differentiator filter |
 | Discrete Filter | 构建无限冲激响应 (IIR) 滤波器模型 |
 | Discrete FIR Filter | 构建 FIR 滤波器模型 |
 | Frequency-Domain FIR Filter | Filter input signal in the frequency domain |
 | Hampel Filter | Filter outliers using Hampel identifier |
 | Highpass Filter | 设计 FIR 或 IIR 高通滤波器 |
 | Lowpass Filter | 设计 FIR 或 IIR 低通滤波器 |
 | Median Filter | 中位数滤波器 |
 | MIMO FIR Filter | Filter input signals through multipath MIMO FIR filter (自 R2025a 起) |
 | Variable Bandwidth FIR Filter | Design tunable bandwidth FIR filter |
 | Allpass Filter | Single-section or multiple-section allpass filter |
 | Allpole Filter | Model allpole filters |
 | Biquad Filter | (To be removed) Model biquadratic IIR (SOS) filters |
 | Fourth-Order Section Filter | Implement cascade of fourth-order section filters (自 R2022a 起) |
 | Notch-Peak Filter | Design second-order tunable notching and peaking IIR filter |
 | Second-Order Section Filter | Implement cascade of second-order section filters (自 R2023b 起) |
 | Variable Bandwidth IIR Filter | Design tunable bandwidth IIR filter |
主题
- 从 ECG 信号中去除高频噪声
此示例说明如何对包含高频噪声的 ECG 信号进行低通滤波。
- Remove High-Frequency Noise from Gyroscope Data
Remove high-frequency noise using a median filter.
- Design a Filter in fdesign — Process Overview
Learn how to analyze, design, and implement filters in MATLAB and Simulink.
- Digital Filter Implementations
Implement your filter design using the DSP System Toolbox filter blocks.
- SSB 调制
在 Simulink 中执行 SSB 调制。
- Filter Frames of a Noisy Sine Wave Signal in MATLAB
This example shows how to lowpass filter a noisy signal in MATLAB® and visualize the original and filtered signals using a spectrum analyzer.
- Filter Frames of a Noisy Sine Wave Signal in Simulink
This example shows how to lowpass filter a noisy signal in Simulink and visualize the original and filtered signals with a spectrum analyzer.
- Tunable Lowpass Filtering of Noisy Input in Simulink
This example shows how to filter a noisy chirp signal with a lowpass filter that has a tunable passband frequency.
- Filter Noisy Signal Using Fourth-Order Section (FOS) Filter in Simulink
Filter noisy sinusoidal signal using fourth order section filter in Simulink.
- Variable-Size Signal Support DSP System Objects
List of System objects that support variable-sized signals in DSP System Toolbox.
精选示例
Parametric Audio Equalizer
Model an algorithm specification for a three band parametric equalizer
