remove some deprecated dependencies
This commit is contained in:
@@ -0,0 +1,126 @@
|
||||
---
|
||||
title: MATLAB 函数 —— upsample(Signal Processing Toolbox)
|
||||
tags:
|
||||
- MATLAB
|
||||
- 翻译
|
||||
- 上采样
|
||||
categories:
|
||||
- - MATLAB
|
||||
- - 翻译
|
||||
- 帮助文档
|
||||
mathjax: true
|
||||
copyright: true
|
||||
abbrlink: 3a606c9c
|
||||
date: 2020-11-26 22:23:39
|
||||
---
|
||||
`upsample`:将采样率提高整数倍
|
||||
|
||||
# 语法
|
||||
|
||||
`y = upsample(x,n)`
|
||||
`y = upsample(x,n,phase)`
|
||||
|
||||
<!-- more -->
|
||||
|
||||
# 说明
|
||||
|
||||
`y = upsample(x,n)` 通过在样本之间插入 `n - 1`个零来增加 `x` 的采样率。如果 `x` 是矩阵,则该函数将每一列视为单独的序列。[举例](#Examples-01)
|
||||
|
||||
`y = upsample(x,n,phase)` 指定未采样序列所偏移的样本数。
|
||||
|
||||
# 示例
|
||||
|
||||
## 提高采样率<span id="Examples-01"></span>
|
||||
|
||||
将序列的采样率提高 `3` 倍。
|
||||
|
||||
```m
|
||||
x = [1 2 3 4];
|
||||
y = upsample(x,3)
|
||||
```
|
||||
|
||||
```no
|
||||
y = 1×12
|
||||
|
||||
1 0 0 2 0 0 3 0 0 4 0 0
|
||||
```
|
||||
|
||||
将序列的采样率增加 `3` 倍,并将相位偏移增加 `2`。
|
||||
|
||||
```m
|
||||
x = [1 2 3 4];
|
||||
y = upsample(x,3,2)
|
||||
```
|
||||
|
||||
```no
|
||||
y = 1×12
|
||||
|
||||
0 0 1 0 0 2 0 0 3 0 0 4 0
|
||||
```
|
||||
|
||||
将矩阵的采样率提高3倍。
|
||||
|
||||
```m
|
||||
x = [1 2;
|
||||
3 4;
|
||||
5 6];
|
||||
y = upsample(x,3)
|
||||
```
|
||||
|
||||
```no
|
||||
y = 9×2
|
||||
|
||||
1 2
|
||||
0 0
|
||||
0 0
|
||||
3 4
|
||||
0 0
|
||||
0 0
|
||||
5 6
|
||||
0 0
|
||||
0 0
|
||||
```
|
||||
|
||||
# 输入参数
|
||||
|
||||
## `x` - 输入数组
|
||||
|
||||
输入数组,指定为**向量**或**矩阵**。如果 `x` 是矩阵,该函数会将不同列向量视为独立的通道。
|
||||
|
||||
**举例**:`cos(pi/4*(0:159)) + randn(1,160)` 指定加有高斯白噪声的正弦曲线。
|
||||
|
||||
**举例**:`cos(pi./[4;2]*(0:159))' + randn(160,2)` 指定一个两通道的正弦波。
|
||||
|
||||
## `n` - 上采样因子
|
||||
|
||||
上采样因子,指定为**正整数**。
|
||||
|
||||
**数据类型**:`single` | `double`
|
||||
|
||||
## `phase` - 偏移量
|
||||
|
||||
偏移量,指定为从 `0` 到 `n - 1` 的**正整数**。默认为 `0`。
|
||||
|
||||
**数据类型**:`single` | `double`
|
||||
|
||||
# 输出参数
|
||||
|
||||
## `y` - 上采样数组
|
||||
|
||||
上采样数组,以**向量**或**矩阵**的形式返回。`y` 有 `x × n` 个样本。
|
||||
|
||||
# 扩展功能
|
||||
|
||||
## C/C++ 代码生成
|
||||
|
||||
> 使用 MATLAB® Coder™ 生成 C 代码和 C++ 代码。
|
||||
|
||||
# 另请参阅
|
||||
|
||||
[`decimate`](https://ww2.mathworks.cn/help/signal/ref/decimate.html) | [`downsample`](https://ww2.mathworks.cn/help/signal/ref/downsample.html) | [`interp`](https://ww2.mathworks.cn/help/signal/ref/interp.html) | [`interp1`](https://ww2.mathworks.cn/help/matlab/ref/interp1.html) | [`resample`](https://ww2.mathworks.cn/help/signal/ref/resample.html) | [`spline`](https://ww2.mathworks.cn/help/matlab/ref/spline.html) | [`upfirdn`](https://ww2.mathworks.cn/help/signal/ref/upfirdn.html)
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
在 R2006a 之前推出
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
原文参考:[https://ww2.mathworks.cn/help/signal/ref/upsample.html](https://ww2.mathworks.cn/help/signal/ref/upsample.html)
|
||||
Reference in New Issue
Block a user