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データの表現
関数
timetable | タイムスタンプ付きの行と、異なる型の変数をもつ timetable 配列 |
iddata | 時間領域または周波数領域のシステム同定用の入出力データとそのプロパティ |
idfrd | Frequency response data or model |
idinput | Generate input signals to support system identification |
sim | Simulate response of identified model |
size | 入力-出力モデルの出力/入力/配列の次元、および FRD モデルの周波数の数を照会 |
midprefs | Specify location for file containing System Identification app startup information |
simOptions | Option set for sim |
ブロック
Iddata Sink | シミュレーション データを iddata オブジェクトとして MATLAB ワークスペースにエクスポート |
Iddata Source | Import time-domain data stored in iddata object in
MATLAB workspace |
例および使用方法
- Import Time-Domain Data into the App
Import time-domain data into the System Identification app.
- Import Frequency-Domain Data into the App
Import frequency-domain input-output data and frequency-response data into the System Identification app.
- Import Data Objects into the App
Import
iddata
andidfrd
data objects. - Data Domains and Data Types in System Identification Toolbox
System Identification Toolbox™ accepts timetables, numeric matrices, and data objects for model estimation in the time and frequency domains.
- Convert SISO Matrix Data to Timetable
Convert matrix-based SISO estimation data to timetables for model identification.
- 連続時間モデルを推定するために MIMO 行列データを timetable に変換
最初に行列ベースのデータを timetable に変換して連続時間 MIMO モデルを推定する。
- Generate Data Using Simulation
Creating input data with specific characteristics and simulating the output data from a model.
概念
- Representing Data in MATLAB Workspace
Represent time-domain, time-series, and frequency-domain data.
- Requirements on Data Sampling
The toolbox provides limited support for nonuniformly sampled data.
- Specifying the Data Sample Time
Specify time between successive data samples.
- Managing Data in the App
You can get information about each data set in the System Identification app by right-clicking the corresponding data icon.
- Representing Time- and Frequency-Domain Data Using iddata Objects
Using the
iddata
constructor to represent time-domain and frequency-domain data and working withiddata
objects. - Managing iddata Objects
The
iddata
object stores time-domain data or frequency-domain data and has several properties that specify the time or frequency values. To modify the time or frequency values, you must change the corresponding property values. - Representing Frequency-Response Data Using idfrd Objects
Using the
idfrd
constructor to represent frequency-response data and working withidfrd
objects. - Manipulating Complex-Valued Data
Supported operations and limitations for handling complex data and commands for manipulating complex signals.