信号操作
对信号执行延迟、重新排序、重采样和加窗操作
您可以使用 DSP System Toolbox™ 中的模块和 System object 执行信号操作,如速率转换、卷积、数字上变频和数字下变频、相位提取、DC 分量去除、峰值定位、信号填充和延迟加法。
对象
模块
主题
基于采样和基于帧的处理
- Sample- and Frame-Based Concepts
Explore basic signal concepts in the context of a Simulink® model. Learn more about sample-based processing and frame-based processing. - Inspect Sample and Frame Rates in Simulink
Understand sample time, sample rate, frame period, and frame rate in the context of a Simulink model. Determine the sample and frame rates of signals in your model. - Convert Sample and Frame Rates in Simulink Using Rate Conversion Blocks
Learn how direct-rate conversion blocks impact the sample rate and frame rate of signals in Simulink models. - Compare Speed Performance in Frame-Based Processing Mode Using Simulink Profiler
Process signals using frame-based processing and compare the performance using Simulink profiler.
速率转换
- Upsample Signal in Single-Rate Frame-Based Processing Mode
Upsample signal in the single-rate processing mode. - Upsample Signal in Multirate Frame-Based Processing Mode
Upsample signal in multirate frame-based processing mode. - Sample and Hold a Signal
Shows the effect of different trigger events on output of the Sample and Hold block. - Repeat Signal in Single-Rate Frame-Based Processing Mode
Repeat the signal in single-rate processing mode. - Repeat Signal in Multirate Frame-Based Processing Mode
Repeat the signal in multirate frame-based processing mode.
信号操作
- Generate and Apply Hamming Window
Generates and applies a Hamming window using Window Function block. - Unwrap Signal
This model shows basic unwrapping using the Unwrap block. - Convolution of Two Inputs
This model shows how to convolve two vectors using the Convolution block. - Pad or Truncate Matrix with Constant Values
Use the Pad block to pad or truncate constant values to a matrix. - Extract the Phase of Sine Wave
Use the Phase Extractor block to extract the phase of a sine wave signal. - Use DC Blocker to Remove DC Component of Signal
Remove DC component of signal using IIR and Subtract mean estimation algorithms. - DC Blocker with Fixed Point Data
Use DC Blocker block to remove DC offset from fixed-point data. - Truncate Data Vector Using Offset Block
Truncate data vector using Offset block in all the four modes. - Detect Number of Zero Crossings in Signal
Detect number of zero crossings using Zero Crossing block. - Find Peak Values in a Signal
Shows the analysis made by the Peak Finder block while processing an input vector. - Effect of Overflow Mode on Peak Finder Output
Effect of saturate on integer overflow parameter on the Peak Finder output.
延迟和时滞
- Delay and Latency
Configure the Simulink environment to minimize delay and increase simulation performance. - Delay Signal Using Multitap Fractional Delay
Concurrently delay an input signal using multiple taps.
可变大小信号支持
- 可变大小信号基础知识 (Simulink)
创建一个大小和值在仿真期间可能会发生变化的可变大小信号。 - Variable-Size Signal Support DSP System Objects
List of System objects that support variable-sized signals in DSP System Toolbox.